Yxd-PU U-Cup Hydraulic Piston Y Seal

Yxd-PU U-Cup Hydraulic Piston Y Seal

Type
YxD
Delivery Time
3-7 days
Quality
High-quality
Service
Standard product/Customized product
Brand
DSH
Price
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U cup seal has a U-shaped cross-section and Y seal
has a Y-shaped cross-section, and they are typical lip seals. Although U cup seal is a little bit different from Y seal in shape, they are often thought of the same sort of seal concerning their working principles. U cup seal, additionally named U cup piston seal, stems in various shapes and materials. Shapes comprise single lip U-cups, twin lip U-cups, rod seals with or without anti-extrusion rings, and materials chiefly include rubber, highly saturated nitrile, nitrile (Buna-N), PTFE, Fluorocarbon (FKM) or Urethane. Y-type/U cup piston seal can be divided into lips with different heights. Y seals are used for holes or shafts according to whether the heights of two lips are the same or not.

U cup seals refer to several kinds of seal, namely, rod U-cups, piston U cups, symmetrical U-cups, and A.N. type U cups. U cup seal/Y seal or its various modified shapes, such as piston U seal or piston rod, is exclusively developed for pneumatic use and distinct from the similar seals used in hydraulics. There are many different U-cup seal configurations can be found in DSH Seals to seal that demanding application properly.

The U cup piston seal is broadly applied in the reciprocating dynamic sealing devices, which usually means the U cup seal or Y seal is mainly used for reciprocating sealing. Out of that working principle, we can know that the lip side of the Y seal or U cup seal must be installed to face the high-pressure side, and the Y seal ring can only work in one direction.

 

Features

The Y seals/U-cup piston seals in DSH Seals are well accepted by cylinder
manufacturers and equipment builders. The U-cup seal is a specialized piston seal design, developed from the
standard symmetrical U-cup. It assures improved sealing performance due to the following features:

1. Improved lip design. Both lips have precision knife trimmed chamfers to provide
complete circumferential lip contact.

2. Larger than the groove for which it is intended, which ensures a tight fit in the
slot to prevent movement of the seal during cylinder operation.

3. Reliable sealing performance. There are enough contact area and pre-load to
guarantee its sealing effect.

4. Small frictional resistance. This feature enables the seal to provide smooth
movement.

5. Shrinkage and low-temperature leakage resistant.

6. Good pressure resistance. It can work under a wide application pressure range
without failure, with working pressure up to 40MPa.

7. Good distortion resistance.

8. High reciprocating speed. Its running speed reaches average 0.5m/s, which makes
it especially suitable for the hydraulic cylinder in heavy machinery.

9. Simple structure and easy to install.

 

 

◆◆ PTFE,NBR,FKM,PU

 

Material Description PTFE, PU, FKM and NBR  and so on.
Available Color Black, green, brown, white, red, blue, gold and so on
Material Strength Piston Y ring in PU material has excellent wear resistance, high
pressure resistance, low permanent compression deformation, and strong resistance to extrusion.
Temperature -35~+120℃
Speed ≤1m/s
Pressure ≤40MPa
Medium Mineral oil based hydraulic fluids,barely flammable hydraulic fluids,water,air and others.
Applied Device Standard cylinders /Machine tools/Injection moulding machines/Presses, etc.

 

DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal
DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal-1
DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal-2
DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal-3
DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal-4

 

 

◆◆ U-Cup For Piston - YxD

 

DSH-Find Hydraulic Piston Seal Design U-cup Hydraulic Piston Seal-5

Technical Data
Pressure Temperature Sliding speed Medium
Standard ≤40 MPa -35…+120 ℃ ≤1 m/s Mineral oil based hydraulic fluids,barely flammable hydraulic
fluids, water,air and others.
Material
Standard PU(Shore90-95A)
Pressure 160bar 250bar 400bar
Max Gap E E≤0.6mm E≤0.5mm E≤0.4mm
Order Example for standard version:
Diameter D=100mm
Order Code: YxD 100*88*14
Installation Dimension table based on Metric
Size(mm)
D H9 d h9 H L1 +0.2 L2 +0.2 R1≤ C≥
20~28 D-6 8 8.5 11.5 0.2 3
30~55 D-8 10 11 12.5 0.2 3
55~160 D-12 14 15 17 0.4 3.5
105~300 D-16 18 19 21.5 0.8 5
320~650 D-24 24 26 29 0.8 6.5
Order Number D H9 d h9 H L1 +0.2 L2 +0.2 Order Number D H9 d h9 H L1 +0.2 L2 +0.2
YxD020 20 14 8 8.5 11.5 YxD140 140 128 14 15 17
YxD022 22 16 8 8.5 11.5 YxD140A 140 124 18 19 21.5
YxD025 25 19 8 8.5 11.5 YxD150 150 138 14 15 17
YxD028 28 22 8 8.5 11.5 YxD150A 150 134 18 19 21.5
YxD030 30 22 10 11 12.5 YxD160 160 148 14 15 17
YxD032 32 24 10 11 12.5 YxD160A 160 144 18 19 21.5
YxD035 35 27 10 11 12.5 YxD180 180 164 18 19 21.5
YxD036 36 28 10 11 12.5 YxD190 190 174 18 19 21.5
YxD040 40 32 10 11 12.5 YxD200 200 184 18 19 21.5
YxD045 45 37 10 11 12.5 YxD210 210 194 18 19 21.5
YxD050 50 42 10 11 12.5 YxD220 220 204 18 19 21.5
YxD055 55 47 10 11 12.5 YxD230 230 214 18 19 21.5
YxD055A 55 43 14 15 17 YxD240 240 224 18 19 21.5
YxD060 60 48 14 15 17 YxD250 250 234 18 19 21.5
YxD063 63 51 14 15 17 YxD280 280 264 18 19 21.5
YxD065 65 53 14 15 17 YxD290 290 274 18 19 21.5
YxD070 70 58 14 15 17 YxD300 300 284 18 19 21.5
YxD075 75 63 14 15 17 YxD320 320 296 24 26 29
YxD080 80 68 14 15 17 YxD330 330 306 24 26 29
YxD085 85 73 14 15 17 YxD340 340 316 24 26 29
YxD090 90 78 14 15 17 YxD350 350 326 24 26 29
YxD095 95 83 14 15 17 YxD360 360 336 24 26 29
YxD100 100 88 14 15 17 YxD380 380 356 24 26 29
YxD105 105 93 14 15 17 YxD400 400 376 24 26 29
YxD105A 105 89 18 19 21.5 YxD420 420 396 24 26 29
YxD110 110 98 14 15 17 YxD430 430 406 24 26 29
YxD110A 110 94 18 19 21.5 YxD450 450 426 24 26 29
YxD120 120 108 14 15 17 YxD480 480 456 24 26 29
YxD120A 120 104 18 19 21.5 YxD500 500 476 24 26 29
YxD125 125 113 14 15 17 YxD560 560 536 24 26 29
YxD125A 125 109 18 19 21.5 YxD600 600 576 24 26 29
YxD130 130 118 14 15 17 YxD630 630 606 24 26 29
YxD130A 130 114 18 19 21.5 YxD650 650 626 24 26 29
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