DisogrinÂ® LSU Seals - Simrit

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LSU Seals Specification Sheet INTRODUCTION How to Select the Proper Seal Examples of Applications In addition to the main requirement of making the correct seal selection, a series of further demands are made by the users of hydraulic seals: • operation reliability • extended service life • simple installation • tolerance to the hydraulic medium at high and low temperatures • high resistance to mechanical damage (e.g. extrusion into the gap) • low friction • good dimensional elasticity to ensure faultless operation even with working eccentricities between the rod and the housing or the piston and the cylinder wall respectively, as well as expansion of the cylinder due to operating pressure. The evaluation of these demands is of critical importance in the selection of seals, and in special cases so too are the operating conditions (pressure, tempurature and linear velocity). Recommendations for selecting types of seals are given in Table 1. The data given for the seals is for the simultaneous occurance of the highest loading limits. Depending on the application and on the individual operating parameters, even higher loadings are possible. In such cases the seal should be chosen in collaboration with Simrit, since tests to examine the operational reliability of the chosen seal are frequently indispensable. Earthmoving Forklift Agriculture Equipment Equipment Truck Injection Molding Std. Hydraulic Tailgate Lift Table 1 400 o F 400 o F Application Type Seal Profile B STD Rod and Piston B STD B STD 300 o F 220 o F 200 o F 275 o F 300 o F 250 o F 250 o F 300 o F Material 2093 2053 9250 Pressure Typical/Max. (PSI) Temperature Min./Cont./Max. (F o ) Velocity (Feet/Min.) 6000 5000 4000 3000 2000 1000 0 400 300 200 100 0 -20 -30 -40 -65 300 250 200 150 100 50 0 150 5000 3000 220 180 5000 * Reference page 6 for Part Numbering Nomenclature -65 100 100 150 100 3000 275 180 -65 6000 3000 300 220 NOTE: The values shown on the above table reflect typical and extreme operating conditions under which DISOGRIN compounds are capable of maintaining sealability for extended periods of time when the appropriate extrusion gap, fluid and surface finishes are employed. For materials not listed, please contact Simrit. 100 200 150 -65 150 100 100 o F 0 o F -50 o F 2093 (MDI) 2053 (HYTREL®) 9250 (TODI) NITRILE / BUNA N (NBR) -65 o F -65 o F -65 o F -100 o F 6865 (TODI) -40 o F -65 o F -20 o F -115 -65 F -65 F -65 F -115 o F F -65 F -65 F -20 F Min./Max. Recommended Temp. * Ethylene Propylene is not to be used in petroleum based fluids. Important Notes The technical information provided on this specification sheet is for general guidance only and values may vary with the specific parameters and other variables of an application. For a sealing recommendation specific to your application, please contact Simrit Application Engineering 712.262.4867. *ETHYLENE PROPYLENE (EPDM) FLUOROCARBON (FKM) 4 -LSU Seals
INTRODUCTION LSU Seals Material/Style Availability Matrix LSU Style “STD” 2093 Primary Seal Material Energizer Material ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 2053 9250 6865 3102 3202 A B B C C C C 3302 N(3101) E(3201) V(3301) U(6865) S A B B B C Back-Up Ring Material ◆ ◆ ◆ ◆ J(2065) – – – – K(2075) P(9500) Q(9400) “SQB” A B B C C C C A B B B C – – – – “B” A B B C C C C A B B B C – – – – “DEEP” A B B C C C C A B B B C – – – – “DL” B C B C C C C A B B B C – – – – “DLB” B C B C C C C A B B B C C C A C “MODULAR BACK-UP” – – – – – – – – – – – – A C C C LSU Family: Standard Configurations Energizer Energizer Seal Energizer Seal Seal LSU STD LSU SQB LSU “B” AVAILABILITY KEY A = Standard Stocked B = Standard – Non-Stocked C = Non Standard LSU DEEP Back-Up Ring Energizer Seal Energizer Seal LSU “DL” Energizer Seal LSU Optional Configurations * Reference page 6 for Part Numbering Nomenclature Energizer Seal Modular Back-Up Ring Primary Seal Materials 2093 / MDI Polyurethane (93A) 2053 / Hytrel ® Polyurethane (52D) 9250 / TODI Polyurethane (92A) 6865 / TODI Polyurethane (70A) 3102 / NBR Rubber (90A) 3202 / FKM Rubber (90A) 3302 / EPDM Rubber (90A) MATERIAL KEY (Material Number and Type) Energizer Materials N(3101) / NBR Rubber (70A) E(3201) / EPDM Rubber (70A) V(3301) / FKM Rubber (75A) U(6865) TODI Polyurethane (70A) S / Stainless Steel Spring Back-Up Ring Materials J(2065) / Hytrel ® Thermoplastic Elastomer (65D) K(2075) / Hytrel ® Thermoplastic Elastomer (75D) P(9500) / POM / Polyacetal Q(9400) / Polyamid / Glass Filled -LSU Seals 5
Page 1 and 2: DISOGRIN ® LSU Seals DISOGRIN ® L
Page 3 and 4: DISOGRIN ® LSU Seals Table of Cont
Page 5: INTRODUCTION LSU Seals Material Sel
Page 9 and 10: PRODUCT RANGE LSU Seals Standard 1/
Page 11 and 12: PRODUCT RANGE LSU Seals Square Beve
Page 13 and 14: PRODUCT RANGE LSU Seals Bevel (B) 1
Page 21 and 22: PRODUCT RANGE LSU Seals Deep 3/16
Page 29 and 30: PRODUCT RANGE LSU Seals Deep 1/4”
Page 53 and 54: GENERAL TECHNICAL DATA LSU Seals Ty
Page 55 and 56: GENERAL TECHNICAL DATA Disogrin Mat
Page 57 and 58:
Seal Application Request DISOGRIN S
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Fluid Power Business Unit 3600 West
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DisogrinÂ® LSU Seals - Simrit

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