SPGW Compact Hydraulic Piston Seal

Piston seal

Piston seal maintain sealing contact in sliding motion between the piston and cylinder bore. Differential pressures acting on the piston to extend or retract the piston rod can be in excess of 400 bar (5,800 psi). The pressure acting on the piston seal increases contact forces between the piston and cylinder surface. Therefore the surface properties of the sealing surfaces are critical to proper seal performance.


Piston seals are typically classified into single acting (pressure acting on one side only) and double acting (pressure acting on either side) seals.


Costumer Hydraulic Cylinder Piston Seal SPGW with Factory Price


SPGW PTFE bronze hydraulic compact seal is a four piece double acting heavy duty compact seal which consist of one PTFE bronze profile ring,one elastomeric nitrite rubber pre-load sealing element and two thermoplastic back-up rings.


Product Advantages of SPGW piston seal

1. High sliding speed
2. Low friction,free of stick-slip
3. Simple groove design
4. Long service life
5. Very good sealing performance even with pressure speaks
6. High resistance to abrasion
7. Increase clearance possible

We only show the part of all the specifications, if needed, more details will be provided for your reference.

Ningbo Yierka Seals Co., Ltd. is located in west of Ningbo city, where is 15 km distant of Ningbo airport. It is 35km away from Ningbo port, so it is convenient transportation. Ningbo Yierka Seals was established in 2001. We are specialized in producing and researching Hydraulic Seals, Pneumatic Seals, Rubber Parts and PU Casting Parts. We offer seal solution service for global customers.

We have succeeded in turning the hydraulic seal to be used in mine, hydraulic system, plastic jetting machine and engineering machine. And we have 14 PCS patents and can provide the product certificate according to client' requirements. 

Ningbo Yierka Seals covers about 4,900 meter square, 85employees work for us. We have more than 15,000 kinds mould tooling. The current production capacity is around 1,000,000 pieces per month. We have a quality control system. Ningbo Yierka Seals owns complete test and research equipment, physical and chemical labs. 

Our aim is "offering professional seal solution service and high-quality seal to our global customers." We believe that service and communication are key factors when building a business relationship. Also we sincerely welcome the customer from domestic and abroad. We hope to establish the good business relations with customers through sincere cooperation. We believe we will make our common career better through our great effort.

Packaging : PP Bag, Carton; Shrink, Carton,or as per your  requirement.

Delivery Detail: 7~20 days after payment.