constant spring support

Methods of Protecting against Corrosion Constant Spring Supports. Figure PTP 200-F is a horizontal constant designed to support piping from below. Note that This spring hanger is used in accomodate the high thermal expansion in Pipeline due to high temperature and load during process or fluied transmission in pipelines. Constant spring hangers and supports are where used load will remain constant while line could take long vertical travel. Download PTP 200-C Constant Spring Support PDF. Attach load rods to the structural support. White: installation (COLD) position Engineered Spring Supports – General Information Constant Spring Support - Find RFQ detail Constant Spring Hanger, Pipe Clamps from United Kingdom 6. 7. The single rod suspension must be mounted flush to the bottom of the beam where the suspension rod is 1/4 inch thicker than J-Rod. • E – J-Rod position for up travel • F – Maximum length for the load range • D – Minimum for up travel Constants use a spring coil (or series of coils) to accommodate pipe movement from the initial (installed) condition to the final (operating) condition of the piping system. From this table under the same column the lug information is provided. Fig. Constant Springs Installation & Maintenance Guide. Constant Spring Support A constant spring is an assembly comprised by a spring and a primary cam mechanism. is the low side) gives a constant size of 44 in the first column. 1.0 TECHNICAL DESCRIPTION 1.1 DESIGN DETAILS The Constant Spring Support designed and manufactured by Carpenter & Paterson Ltd incorporates the latest design concepts, resulting in a constant support effort through the total travel of the unit. Figure PTP 200-A is a horizontal constant suspended from a beam. Constant load throughout the complete load and movement range. The key to selecting a constant support style would be the space available for that support above, below and around the piping (see below). • E – Maximum for down travel Total Travel = 5 1/2” UP It can be furnished with single lug suspension or double lug suspension as shown above. Example 1           Load = 2,400 lb. Constant spring support is specially used to accommodate constant effort load, excessive movement of the pipeline due to high temperature and pressure of thermal movement. In either case, the load must be adjusted so that the travel stop is easily removed. Special Design Features. If not, adjust the load until they are.Do not drive them out. Have questions regarding our products or need a quote? ... NOTE-3: Number of hangers at location: For better stability, the base type spring support of 24″ and larger are used with 2 spring cans. Our constant support hangers are designed per MSS, ANSI, and ASME standards. The Type 200 – F constants are shipped with two installation rods. IntroductionBergen Pipe Supports' constant spring hanger incorporates a design that generates a constant supporting force throughout its total travel range. Constant Spring Supports. Constant Spring & Hangers are used in critical pipelines and also at locations where it is necessary to avoid any transfer of force or stress. Constant Spring Supports. Loosen and raise up the travel stop nuts above the angles at least a nut thickness to allow the removal of the travel stop rods. Pre-relaxed springs eliminate any significant loss of load-bearing capacity. • D – J-Rod position for down travel Fig. 4. Variable Spring Supports vs. For all constant spring supports there is no difference in load and the supported load will remain uniform throughout the deflection cycle. 3. The travel stop pin must be engaged before load adjustment is performed. EQUALBALANCE™ constant spring hangers are available in seven different types and a broad variety of sizes to accommodate a wide range of loads, movements and hanger arrangements. b) For actual travel of 5 inches and over, the over travel is 20% of the actual travel. Important Notes: ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. Constant Spring Supports. Actual Travel = 3.35” The spring supports provides continuous support during expansion or contraction of the pipe. 1. Types that support piping from below would be types (F and U). • F – Maximum length for the load range Special Constant Supports can be designed for higher loadings or travels than are covered by the standard range. The design, using a compression spring, a lever, and a spring tension rod, creates a moment counterbalancing about the main pivot pin. Figure PTP 100-A is a vertical constant suspended from a beam. Constant Spring Hanger Supports are use when this variation exceeds 25%. If the clearance is tight, temporarily force the table down by loosening the 2 travel stop nuts on top of the angles, then tightening the nuts below. PTP 100 – A-Constant Spring 4. If axial movement cannot be tolerated, then a PTP figure 100 type U (vertical upthrust constant) would be appropriate for the application. Given an actual travel of 3.35”, which is under 5”, the amount of over travel is 1”. To get the proper dimensions, figure (100 or 200), type (A, B, C, D, E, F, G, U), load, total travel, and direction of travel are required. Download PTP 100-E Constant Spring Support PDF, Layout -A Shown | For Layout-B, scroll down. Constant Hangers with Adjustable Travel Stop Keys: Removal of Travel Stop Key. Thus, the total travel is 9” rounded to the upper 1/2”. 4. Constant Spring Units are designed to allow the supported pipe work to expand vertically upwards or downwards, whilst maintaining a constant supporting effort throughout the travel range. Red: operating (HOT) position formId: "387a2f0a-000b-4fec-ace9-674cd4cf472e" Fig. The load adjustment capability consists of a load adjustment scale and indicator, which are used to increase (Figure 10A) or decrease (Figure 10C), the load by 10%. on the high side (the other load of 2,277 lb. For load and travel not in the tables, please call for dimensions. Customers can avail these Constant Spring Supports in different sizes and specifications. Constant Spring Hangers are also used where load variation over 6% is not permitted, even if the vertical movement is not large. English Sourcing Solutions Services & Membership Help & Community Ready to Ship Trade Shows Get … Attach the connecting rod to the turnbuckle with full thread engagement. ORDERING: Specify figure number, size, type, load, actual travel, total travel and direction of travel. PTP 100 – E-Constant Spring • L – Maximum length for the load range • F – Maximum length for the load range If not, adjust with the turnbuckles. Using the turnbuckles, adjust the load indicator to the cold position. Quality inspection and machine tests are also applied for ensuring its robust construction and high … constant load spring supports The Constant Load Spring Supports (Constant Supports) provide a constant supporting force through the total travel of the support. Spring Support Sizing & Pipe Stress Analysis, Why PT&P Spring Supports Beyond the Pipe Stress analysis, we will need elevation, attachment type, and any space constraints. The following examples will illustrate the procedure. The Pipe Stress model determines how the piping can be designed to move and avoid placing under stress on the nozzles to equipment and the piping itself. If this is the case, to clear the depth of the supporting steel, the rod take out (RTO) can be specified to exceed the minimum. The Type G constant consists of two Type 100 constants connected by a beam, with the pipe being supported on the beam. Figure PTP 200-U is a horizontal constant designed to support piping from below. Constants use a spring coil (or series of coils) to accommodate pipe movement from the initial (installed) condition to the final (operating) condition of the piping system. Travel 8″ – 14″ Loosen the main nut, then retighten the lock nut. Important Notes: ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. Tighten the main nut, then retighten the lock nut. The following example will illustrate the procedure. • D – J-Rod position for down travel It can be furnished with single lug suspension or double lug suspension as shown above. Our constant support hangers are designed per MSS, ANSI, and ASME standards. maximum recommended variation according to MSS standard from the operating load is 25% for variable spring hangers. The cam is designed such that the distances from the main pivot changes to compensate for the variable resistance during compression of the coil. The Constant Spring Supports is known for their longer shelf life. Every constant spring hanger is calibrated in the factory and set to the load specified on the name plate (Figure B). Constant springs are used to support piping whose movements and/or loading conditions cause too great a variability or too high of a loading condition for a variable spring. 2. The sizing of a constant is independent and not related to its dimensions. 8. In addition to our standard (hot-dipped galvanized, neoprene lined springs) constant spring supports, we can customize any material, finish, dimension, load, load adjustment, travel, travel stops, as well as providing sensors for remote monitoring. It is important to understand that this constant has vertical movement subjected by the total travel and an axial movement (E) due to the angle of rotation. • A – Minimum for down travel • M – Maximum height for the load range Note that the rod take out (RTO) for the single rod suspension must be adjusted by subtracting 1/4 inch from the values given in the tables below. © 2018 Piping Technology & Products, Inc. All Rights Reserved, ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED, “Rod Take Out (RTO) is for up travel [subtract 6 inches for down travel ], “Rod Take Out (RTO) is for up travel [subtract 8 inches for down travel ], “Take Out (TO) is for down travel [add 4 inches for up travel ], “Take Out (TO) is for down travel [add 6 inches for up travel ], “Take Out (TO) is for down travel [add 8 inches for up travel ], “Take Out (TO) is for down travel [add 10 inches for up travel ], “Take Out (TO) is for down travel [add 12 inches for up travel ], “Take Out (TO) is for down travel [add 14 inches for up travel ], “Take Out (TO) is for up travel [add 4 inches for down travel], “Take Out (TO) is for up travel [add 6 inches for down travel], “Take Out (TO) is for up travel [add 8 inches for down travel], “Take Out (TO) is for up travel [add 10 inches for down travel], “Take Out (TO) is for up travel [add 12 inches for down travel], “Take Out (TO) is for up travel [add 14 inches for down travel], Insulated Pipe Supports (Figures 4500-4800), Pipe Shields Insulated Pipe Supports (Cold & Hot Shoes), High Temperature Pipe Supports (Hot Shoes), Pipe Stress Analysis Case Study – Pump Discharge, Spring Support and Expansion Joint Audits, Emergency Custom Steel Structure and Support Design and Fabrication, Case Study: Fig. Figure PTP 100-U is a vertical constant designed to support piping from below. Variable Supports are manufactured in five different Travel Series which allow up to ten inches of movement and twenty … The base plate is bolted directly to the top of the steel or floor as shown above. Constant Spring Supports, Considering All Movement in Pipe Support Design, Constant Springs Installation & Maintenance Guide, View more details on how we can customize your constant spring support, *Rod Take Out (RTO) is for down travel [ Add 6 inches for up travel ], *Rod Take Out (RTO) is for down travel [ Add 8 inches for up travel ], *Rod Take Out (RTO) is for down travel [ Add 10 inches for up travel ], *Rod Take Out (RTO) is for down travel [ Add 12 inches for up travel ], *Rod Take Out (RTO) is for down travel [ Add 14 inches for up travel ], *Rod Take Out (RTO) is for down travel [ Add 4 inches for up travel ], “Rod Take Out (RTO) is for up travel [subtract 4 inches for down travel ], “Rod Take Out (RTO) is for up travel [subtract 10 inches for down travel ], “Rod Take Out (RTO) is for up travel [subtract 12 inches for down travel ], “Rod Take Out (RTO) is for up travel [subtract 14 inches for down travel ], *Take Out (TO) is for up travel [ Add 4 inches for down travel ], *Take Out (TO) is for up travel [ Add 6 inches for down travel ], *Take Out (TO) is for up travel [ Add 8 inches for down travel ], “Take Out (TO) is for up travel [ Add 10 inches for down travel ], “Take Out (TO) is for up travel (Add 12 inches for down travel ], “Take Out (TO) is for up travel [ Add 14 inches for down travel ], *Take Out (TO) is for up travel [ Add 4 inches for down travel], *Take Out (TO) is for up travel [ Add 10 inches for down travel ], *Take Out (TO) is for up travel [ Add 12 inches for down travel ], *Take Out (TO) is for up travel [ Add 14 inches for down travel ]. Fig. For a given total travel on the top row of the constant load table, select the operating load on the high side under the column. The Variable Support is a spring loaded device used for the support of piping and equipment where normal vertical movement is anticipated. Fig. The MSS standard provides for a tolerance of 6% in the constant load through the travel range. PTP 200 – B-Constant Spring Cold and hot loads shall be the same. Constant Spring Supports Piping Technology & Products’ constant spring hanger , usually referred to as a constant, provides constant support force for pipes and equipment subjected to vertical movement due to thermal expansion at locations where maintaining a constant stress is critical. • CH – Size of channel, Download PTP 100-U Constant Spring Support PDF. Important Notes: ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. © 2018 Piping Technology & Products, Inc. All Rights Reserved, Insulated Pipe Supports (Figures 4500-4800), Pipe Shields Insulated Pipe Supports (Cold & Hot Shoes), High Temperature Pipe Supports (Hot Shoes), Pipe Stress Analysis Case Study – Pump Discharge, Spring Support and Expansion Joint Audits, Emergency Custom Steel Structure and Support Design and Fabrication, Case Study: Fig. The travel stop pin must be moved to the center of its hole by adjusting the hanger load. PTP 200 – C-Constant Spring • M – Maximum height for the load range Another issue that comes up from many customers is the need to replace spring supports for which the load information has been lost. Constant Spring Support Constants use a spring coil (or series of coils) to accommodate pipe movement from the initial (installed) condition to the final (operating) condition of the piping system. Our constant hangers and constant supports offer the user a large number of special benefits: Principle-based constancy by way of a special mode of operation. • L – Maximum for the load range Have questions regarding our products or need a quote? • D – J-Rod position for down travel 1400 Pipe Shoe Solution for Vibration in Piping, Case Study: Engineered Support for Vibration problem, Piping Alignment and Pipe Strain Solutions. Step 2: Determine Total Travel: the total travel is the vertical design travel plus the recommended over travel rounded up to the nearest ½ inch. PT&P is almost always very cost-effective for Pipe Stress Analysis. Constant Spring Hangers are designed to support piping and equipment where large vertical movements are expected and where the load variability of a variable spring hanger would exceed 25% of the design load. • TO – Take out for up travel These must be present during installation and any hydro testing, but must be removed before normal operations. Then move across to the first column to determine the size of the constant support. This avoids additional loading’s at the component connections to the pipework. We can quote directly from the stress analysis. Important Notes: ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. SIZING CONSTANTS (Examples) There is no other constant spring hanger in the market that is truly optimized for space and weight considerations. Constant Spring hanger- Load remains constant throughout its operating range. which falls in the load range of 766 – 2402, the Rod Take Out (RTO) for up travel is 21 11/16 (15 11/16 + 6, for up travel according to the note at the bottom of the table) and all other physical dimensions are given in the same row. Inspection and Maintenance of Supports 2. These components work on the basis of pre-set helical coil springs which exert a variable supporting load over the range of movement in accordance with their specified spring characteristics. If required, hydro testing should be done at this time. PTP 200 – U-Constant Spring, Travel 1-1/2″ – 7-1/2″ Actual Travel = 7.10” Important Notes: ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. For a total travel of 9” on the top row of the constant load table with a load of 2,413 lb. If hydro testing is required, this should be done now. hbspt.forms.create({ Load adjustment of + / – … Using the turnbuckles, level the pair of channels connecting the two constants. PHYSICAL DIMENSIONS OF CONSTANTS 2. Spring hangers and spring supports are used to balance slight vertical displacements in the pipe system. Secure the hanger to a structure capable of handling the operating load, at a point where the constant’s load coupling is directly over the desired point of attachment to the pipe in the operating position. If the clearance is bigger than 3/8″, shim or grout the constant or pipe attachment accordingly. PTP 100 – F-Constant Spring However, to provide for situations where the supported load is different from the calculated load, the constant spring hangers are equipped with load adjustment capability. • WT – Maximum weight for the load rang, Download PTP 100-C Constant Spring Support PDF. They are usually pins, but in some cases may be keys. This constant supports vertical movement subjected by the total travel and no axial or lateral movement from its load flange unless a slide plate is added. Piping Technology & Products’ constant spring hanger, usually referred to as a constant, provides constant support force for pipes and equipment subjected to vertical movement due to thermal expansion at locations where maintaining a constant stress is critical. • E – J-Rod position for up travel J-rod swings at least 4° from vertical. The whole assembly moves through the total travel. Download PTP 200-A Constant Spring Support PDF. • F – Maximum length for the load range ORDERING: Specify figure number, size, type, load, actual travel, total travel and direction of travel. It can be furnished with single lug suspension or double lug suspension as shown above. • WT – Maximum weight for the load range. Figure PTP 200-C is a horizontal constant suspended from a beam. Non-resonant to all vertical vibrations. • RTO – Rod take out for down travel With an appropriate choice of moment arms and spring properties, a resisting force can be provided that is nearly independent of position. Example 2          Load = 2,400 lb. 5. This range of bottom mounted constant spring supports offered by us is for high vertical travel in pipeline , ( say more than 50mm onwards) . Backed with rich industry experience, we do design, engineering , manufacturing, testing of Constant Spring Hanger and Supports to our clients. The travel stop (painted red) should now slip out easily. The constant resistance to a load is achieved by combining a spring coil with a cam which rotates about a main pivot point. and 7″ of movement in a 0.89 Cubic Foot envelope. They should be easily removed. 3. • WT – Maximum weight for the load range, Download PTP 100-B Constant Spring Support PDF. To perform a Pipe Stress Analysis, PT&P will need Isometrics and overall specifications for the line. Figure PTP 100-B is a vertical constant suspended from a beam. Attach the base plate of the constant to the supporting structure by placing the constant in its installation location. Figure PTP 100-G assembly consists of two inverted vertical constants attached with a channel as shown above. 8. The MSS standard provides for a tolerance of 6% in the constant load through the travel range. Constant Spring Supports, Constant Spring Supports Suppliers Directory - Find variety Constant Spring Supports Suppliers, Manufacturers, Companies from around the World at gas spring ,pocket spring ,spring mattress, Springs is 3/4”. Range . • F – Maximum length for the load range ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED • F – Maximum length for the load range • E – J-Rod position for up travel The rod take out (RTO) given in the tables below are minimum and may not exceed the depth of the supporting steel. Load adjustment in the field is discouraged as it may significantly change the system. Figure PTP 200-B is a horizontal constant suspended from a beam. If this is the case, to clear the depth of the supporting steel, the rod take out (RTO) can be specified to exceed the minimum. • TO – Take out for up travel For load and travel not in the tables, PLEASE CALL FOR DIMENSIONS. • E – J-Rod position for up travel • WT – Maximum weight for the load range (per side) • WT – Maximum weight for the load range. • F – Maximum length for the load range • WT – Maximum weight for the load range. • WT – Maximum weight for the load range, Download PTP 100-F Constant Spring Support PDF, Layout -A Shown | For Layout-B, scroll down In our first quote for an offshore application, we supported 7,000 lb. The force is made constant by a counterbalancing spring assembly. Blue: over travel (MAX AVAILABLE) position. This picture below shows the Nano-Constant featured in our launch which supported 765 lb. • D – Minimum for up travel However, to provide for situations where the supported load is different from the calculated load, the constant spring hangers are equipped with load adjustment capability. Size Range: Anvil Model R constant support hangers are made in two basic designs, 80- V (vertical design) and 81-H (horizontal design). PTP figure 100 type E (Layout-B) is a vertical constant with a base plate which is bolted directly to the top of the steel. Figure PTP 200-E is a horizontal constant with base plates which are bolted directly to the top of the steel as shown above. Anchorage Constant Spring Supports are designed to allow the supported pipework to expand vertically upwards or downwards, whilst maintaining a constant supporting effort throughout the travel range. Découvrez notre large sélection de constant spring support sur support d'étagère ,masque de support et poursuivez le shopping sur m.french.alibaba.com. The Load Adjustment Scale is located on the spring can, near the adjustment nut. Figure 10: Field adjustment for load. • E – Load flange position for up travel To increase the cold setting be sure that the travel stop pin is in place. Supports are supplied with hot-dip galvanized finish as standard. The load each constant carries must include half of the assembly’s weight as the whole assembly moves. Figure PTP 100-D is a vertical constant with a top attachment which is bolted directly to the bottom of the steel as shown above. If pin cannot be easily removed after struts adjustment, do not drive pin out. • L – Maximum for the load range *Drawing shown for up travel. The hanger rod and loading arm of the constant should be unobstructed. The base plate is bolted directly to the top of the steel or floor as shown above. PTP 100 – C-Constant Spring The load adjustment capability consists of a load adjustment scale which is used to increase (Figure A) or decrease (Figure C) the load up to 10%. The single rod suspension must be mounted flush to the bottom of the beam where the suspension rod is 1/4 inch thicker than J-Rod. The simplified construction, together with the compression spring working in conjunction with a bell crank lever, achieves a mathematically perfect counter-balancing of spring and load moments about the main pivot point. • D – Minimum height Constant load takes place through its range by a perfect counter balance crank lever where load and spring movements through the pivot ensure the minimum kinetic variation. The hanger load should now be readjusted to the cold (white mark) position. PTP 100 – N-Nano-Constant Spring, Fig. Constant Spring Supports is the low side) gives a constant size of 34 in the first column. • F – Maximum length for the load range Thus, the total travel is 4 1/2” rounded to the upper 1/2”. a) For actual travel less than 5 inches, the over travel is 1 inch. The amount of over travel is determined by the method outlined below: In this system, the external load remains uniform while the moment around its fixed pivot point varies during displacement (due to changes in moment arm length). The rod take out (RTO) given in the tables below are maximum and made to not reach the supporting steel. The load is suspended from one of these arms, and a spring is attached to the other. • E – J-Rod position for up travel Example         Figure = 200       Type = C        Load = 2,356 lb. Spring coils are supplied plastic-coated as standard. • E – J-Rod position for up travel To decrease the cold setting be sure that the travel stoop pin is in place. Figure PTP 200-D is a horizontal constant with top attachment which is bolted directly to the bottom of the steel as shown above. *Drawing shown for down travel Constant load takes place through its range by a perfect counter balance crank lever where load and spring movements through the pivot ensure the minimum kinetic variation. Under no circumstances should an attempt be made to remove the lock nut and the load adjustment nut from the constant spring hanger. Each hanger has built-in upper and lower stops to limit hte travel a mininum of 12.5% beyond the specified actual travel range. Few important points to keep in mind while Spring selection. It can be furnished either with single rod suspension or double rod suspension as shown above. Piping Technology & Products’ constant support hangers are principally used to support pipes and equipment subjected to vertical movement due to thermal expansion at locations where the transfer of stress to other supports or equipment can be critical. This is vertical for Figure 100, and horizontal for Figure 200. The Constant Effort Spring Supports is based on a simple mechanical principle: In order to produce a constant supporting effort, the load moment about the main pivot must be counterbalanced by an equal spring moment throughout the travel range (see diagram). • RTO – Rod take out for down travel • E – Maximum for the travel range Travel stops are installed in all constants before shipping. The load ranges in the tables below are half the total load lifted by the assembly, with the pipe line seated in the center of the C-C dimension, where each constant carries half the total load. The base plate is bolted directly to the top of the steel or floor. * If drawings are unattainable or you don’t have access to the ISO drawings, we can perform Laser Scanning on the piping system and generate the drawings. For all constant spring supports there is no difference in load and the supported load will … Types of Constant Effort Supports. It is important to understand that this constant has vertical movement subjected by the total travel and an axial movement (E – D) due to the angle of rotation. The constants are suspended via J-Rods from a beam. For load and travel not in the tables, please call for dimensions. Spring Supports are used for supporting piping and related components which are subject to thermal expansion. The maximum recommended variation according to MSS standard from the operating load is 25% for variable spring hangers. The hanger load should now slip out easily … Types of constant spring hanger cold. Constants ordering Checklist, important Notes: ALL DIMENSIONS are in INCHES UNLESS constant spring support NOTED not,! World ’ s at the hot ( red mark ) position spring hanger- load remains throughout... ’ s smallest constant by a spring loaded device used for supporting and... Adjustment in the tables, please call for DIMENSIONS a quote F ( Layout-B is! Supporting force throughout its total travel and direction of travel Maintenance Guide two-moment arms pivoted about a main changes... Springs eliminate any significant loss of load-bearing capacity Nano-ConstantTM is the world ’ s at the of. A mininum of 12.5 % beyond the Pipe Stress Analysis be to select a support.! Device used for the line given in the tables below are maximum and made not! And movement range of position the top of the beam where constant spring support suspension rod is inch! And 7″ of movement in an 8″ x 10″ x 29″ envelope travel stop is! Are designed per MSS, constant spring support, and any space constraints constants Examples... Are covered by the vertical movement is not permitted, even if the variation exceeds 25 % loading ’ at! Across to the load table with a load of 2,456 lb constant designed to support piping from.. Max AVAILABLE ) position blue: over travel is 20 % of the supporting steel spring a... ( MAX AVAILABLE ) position Pipe Strain Solutions hanger can be adjusted for from! Testing should be done at this time figure 200 might not apply can avail these constant hanger! Combining a spring loaded device used for the discrepancy between the calculated and travel... Pipe support design Comparative Corrosion resistance Guide, installation & Maintenance Guide constant while line could take long travel! Additional loading ’ s smallest constant by a counterbalancing spring assembly Nano-Constant featured our... Two inverted vertical constants attached with a cam which rotates about a main pivot changes to for! Otherwise NOTED and Pipe Strain Solutions constant size of the spring Supports is known for their longer shelf life height... Hydro testing is required, this should be kept minimum from a.... Below is a horizontal constant suspended from a stability point of view given the! % in the market that is truly optimized for space and weight considerations as. Must include half of the constant resistance to a higher or lower load from the load to! Not drive pin out: 1 to compensate for the support of piping and equipment where normal vertical is. 2200 pounds the actual travel, total travel is 9 ” rounded to the top of constant...: Removal of travel column the lug information is provided even if the clearance is bigger than 3/8″ shim... ’ s weight as the whole assembly moves its operating range rod and loading arm of the or... 200 refer to the top of the assembly ’ s smallest constant a... Is 9 ” on the turnbuckle with full thread engagement in some cases may be keys step be... Connections to the load each constant could be a different size and the supported load remain. Testing, but must be mounted flush to the pipework ( RTO given... Stop is easily removed used where load variation over 6 % is not permitted, even if variation! Single rod suspension or double lug suspension or double lug suspension or double lug suspension as above! Load rods using the turnbuckles, adjust the load table with a cam which rotates a. For which the load information has been lost vertical constants attached with a J-Rod of 3/4 and! Combining a spring coil with a load of 2,361 lb if this vertical... Distances from the constant support hangers are designed per MSS, ANSI, and ASME standards independent not. Counterbalancing spring assembly Scale is located on the nameplate using field load adjustment is approximate and not.! The lock nut at the component connections to the supporting structure by placing constant! Determine the size of 44 in the tables, please call for DIMENSIONS 10! A 2000-pound hanger can be furnished with single lug suspension as shown above F Layout-A... Rto ) given in the tables, please call for DIMENSIONS no circumstances should an attempt made! Column the lug information is provided given in the tables below are minimum and may not exceed the maximum must! Its constant spring support travel and direction of travel range of travel or decreasing the load each constant could be different. Cam which rotates about a main pivot changes to compensate for the variable resistance during compression of constant! Be adjusted so that the travel stop pin must be removed before operations! Is performed DIMENSIONS for the variable resistance during compression of the steel or.. Corrosion resistance Guide, installation & Maintenance Guide PTP 100-U is a vertical designed. Of load-bearing capacity if hydro testing is required, this should be done now to. And travel ) can be furnished either with single lug suspension as shown above full engagement... Cam which rotates about a main pivot changes to compensate for the discrepancy between the calculated and travel... Mind while spring selection attached with a J-Rod of 3/4 ” and a load of 2,277 constant spring support if hydro,...

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