DMS SEALS TECHNOLOGY CO.,LIMITED

The Professional Sealing Solution Supplier(O Ring Suppliers & Oil Seal Manufacturers).

DMS Seals - Hydraulic Seals and Oil Ring Seals Manufacturer & Supplier

Mail to: dms@dmsseals.comtel:+86-757-86235767

Cross section diagram of a hydraulic piston seal structure

Premium hydraulic piston seal with durable rubber and brass components

• Side view of a heavy duty hydraulic piston seal for industrial cylinders

Disassembled parts of a hydraulic piston seal showcasing the inner and outer rings

Two piece compact piston seal set for high pressure hydraulic systems

Front view of a high quality rubber hydraulic piston seal with O-ring

A pair of black rubber piston seals for hydraulic cylinder maintenance

GSF - Bronze PTFE Hydraulic Piston Seal glyd ring with NBR/FKM O-Ring

The GSF Bronze PTFE Hydraulic Piston Seal is a premium-grade piston seal engineered for high-performance industrial cylinders. Operating smoothly at speeds up to 15 m/s and under pressures up to 60MPa, this versatile sealing solution covers a wide diameter range from 3mm to 1600mm. With extreme temperature resistance from -45°C to +200°C, it ensures reliable, zero-leakage performance across various mediums, including hydraulic oil, water, and flame retardant liquids.

Diameter Range:

3-1600mm

Pressure Range:

0-60MPa

Temperature Range:

-45℃ +200℃

Speed:

15 m/s

Medium:

hydraulic oil, flame retardant liquid, water and others

Inquiry

Write a Review

1. Installation Recommendation

2. Installation Sizes

Bore Diameter D_N H9			Groove Diameter	Groove Width	Radius	Radial Clearance S max.			O-Ring Cross-Section
Standard Application	Light Application	Heavy Duty Application	d₁ h9	L₁+0.2	R₁	10MPa	20MPa	40MPa	d₂
8-14.9	15-39.9	-	D_N-4.9	2.2	0.4	0.3	0.20	0.15	1.78
15-39.9	40-79.9	-	D_N-7.5	3.2	0.6	0.4	0.25	0.15	2.62
40-79.9	80-132.9	15-39.9	D_N-11.0	4.2	1.0	0.4	0.25	0.20	3.53
80-132.9	133-329.9	40-79.9	D_N-15.5	6.3	1.3	0.5	0.30	0.20	5.33
133-329.9	330-699.9	80-132.9	D_N-21.0	8.1	1.8	0.6	0.35	0.25	7.00
330-669.9	670-99.9	133-329.9	D_N-24.5	8.1	1.8	0.6	0.35	0.25	7.00
670-999.9	≥1000	330-669.9	D_N-28.0	9.5	2.5	0.7	0.50	0.30	8.40
≥1000	≥1000	≥1000	D_N-38.0	13.8	3.0	1.0	0.70	0.60	12.00

3. Application and properties

This standard double-acting hydraulic piston seal is perfectly engineered for reciprocating motion, allowing larger extrusion clearances across a wide range of applications. It delivers excellent dynamic and static sealing properties, enabling it to work efficiently even in dusty conditions. Featuring low friction and a simple groove design, this robust hydraulic piston seal offers strong adaptability to diverse operational conditions.

4. Standard materials

Sealing ring: filled PTFE

O-Ring: NBR / FKM

5. Working Conditions

Working Conditions
Diameter Range	Pressure Range	Temperature Range	Speed	Medium
3 - 1600mm	0 - 60MPa	-45℃ +200℃	15 m/s	hydraulic oil, flame retardant liquid, water and others

6. Installation Dimensions

Bore Dia.

Groove Dia.

Groove Width

Order No.

O-Ring Dimensions

D_N H9

d₁ h9

L₁+0.2

3.1

5.1

7.1

2.2

GSF8*3.1*2.2

GSF10*5.1*2.2

GSF12*7.1*2.2

2.90*1.78

4.80*1.8

6.70*1.8

9.1

10.1

7.5

2.2

3.2

GSF14*9.1*2.2

GSF15*10.1*2.2

GSF15*7.5*3.2

8.75*1.8

7.59*2.62

8.75*1.8

11.1

8.5

13.1

2.2

3.2

2.2

GSF16*11.1*2.2

GSF16*8.5*3.2

GSF18*13.1*2.2

10.82*1.78

7.59*2.62

12.42*1.78

10.5

15.1

12.5

3.2

2.2

3.2

GSF18*10.5*3.2

GSF20*15.1*2.2

GSF20*12.5*3.2

9.19*2.62

14.00*1.78

12.37*2.62

19.1

16.5

17.5

2.2

3.2

GSF24*19.1*2.2

GSF24*16.5*3.2

GSF25*17.5*3.2

18.77*1.78

15.54*2.62

17.12*2.62

20.5

4.2

3.2

4.2

GSF25*14*4.2

GSF28*20.5*3.2

GSF28*17*4.2

13.87*3.53

20.29*2.62

15.47*3.53

22.5

24.5

3.2

4.2

3.2

GSF30*22.5*3.2

GSF30*19*4.2

GSF32*24.5*3.2

21.89*2.62

26.70*1.78

23.47*2.62

Get in touch with us

just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs