Oil and gas seal
Products
Home Products

Oil & Gas Seal

Downhole Seal

S Seal

HNBR S seal for downhole application

HNBR S seal for downhole application

S Seals are well suited for sealing wellheads, connectors, downhole tools, high pressure valves and other demanding oil and gas applications. The non-extrusion springs can be fabricated from different metals.

The S seal is made of spring and rubber material could be NBR, HNBR, FKM ect.

  • Brand:

    JST Seals
  • Item NO.:

    ESS
  • Payment:

    T/T
  • Product Origin:

    China
  • Shipping Port:

    Guangzhou
  • Order(MOQ):

    50
  • Product Detail

HNBR S seal for downhole application 

 

Wellhead is a key component of oil and gas infrastructure. Wellhead sealing materials need to withstand high pressure and high temperature.

 
S Seals are well suited for sealing wellheads, connectors, downhole tools, high pressure valves and other demanding oil and gas applications. The non-extrusion springs can be fabricated from different metals.
 
The S seal is made of spring and rubber material could be NBR, HNBR, FKM ect.

 

 

S-seal is a compact one-piece seal design with anti extrusion elastomer with two molded anti extrusion springs at the outer edge. Its unique design integrates two non extrusion devices and a sealing element into an overall structure to provide two-way sealing. At the same time, combined with a simple symmetrical contour non extrusion device, headless coil springs are used on both sides of the seal, allowing a large extrusion gap to be bridged under high pressure. Non extruded equipment (when made of the following materials) limits metal seals to static applications. S seal is a preferred design which attack by oilfield media where an O ring cannot survive the maintenance-free life cycle of the equipment.

Product Highlights:

1. Alternative engineered seal design to using T Seals or O-Rings, traditional S Seals utilize metal spring for supporting sealing of various extrusion gaps.
2. Designed as an engineered replacement for T Seals and O-Rings.
3. One piece design for easier installation into glands vs. multiple component seals.

 

Working  Conditions
Temperature range Pressure Medium
40~350F ≤12.5kPsi gas and water

 

Size:

3.5", 4.5", 5", 7"

Send A Message

If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Related Products
rubber scraper seals online
NBR HNBR PU wiper seal

Wipers are installed in the sealing configurations of hydraulic cylinders to prevent contaminants such as dirt, dust and moisture from entering the cylinder as they retract back into the system.

BOP Seal
BOP inner and outer seal

JST's Inner and Outer BOP Seals could be made according to customer requirements. These seals are used in various type of Blow Out Preventors (BOP's).

Spring energised PTFE seal
Spring energized PTFE lip seal

Spring energized PTFE seals consist of variety of jacket profiles and spring types. It can achieve the sealing effect compensation under different pressure conditions by spring energizer.

API 6D ball valve seal
Ball valve high pressure lip seal

The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a stem seal.

LNG cryogenic valve seals
PTFE spring energized seals for cryogenic applications

The FHB seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange internal face seal.

ODU type Piston seals
Hydraulic ODU piston PU seal

ODU Piston seals are work to seal in fluid, thus preventing the flow of fluid across the piston, allowing pressure to build up on one side of the piston.

hydraulic PTFE wear strip
PTFE guide and wear strip

ptfe wear strips can keep the piston centered as well as preventing metal-to-metal contact.

Bronze filled PTFE KZT seals
Hydraulic cylinder PTFE seal KZT

KZT is used in combination with anti-wear and piston ring to prevent cylinder oil from mixing with foreign particles, avoiding seal damage.

© Copyright: 2026 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.

粤ICP备12032262号 IPv6 network supported

IPv6 network supported

Friendly Links:

Voneseals
top

Send A Message

Send A Message

    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

  • #
  • #
  • #