Oil and gas seal
Products
Home Products

Oil & Gas Seal

Well Service Equipment Seal

Well Service Pump Packing Seal

Fabric reinforced well service packing

Fabric reinforced well service packing

EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals.

  • Item NO.:

    EVZ
  • Payment:

    T/T
  • Product Origin:

    China
  • Shipping Port:

    Guangzhou
  • Order(MOQ):

    50
  • Product Detail

Fabric reinforced well service packing


EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals. JST’S EVZ well service packing are used in rod glands to seal the extension rods which force fluid through the pump in plunger pump. Sealing of the extension rods is critical in order to maintain system pressure. In addition to pressure retention, well service packing must keep the pump’s hydraulic fluid and pumping media separated. Its main function is to prevent plungers from leakage in high-speed reciprocating. Some special working conditions are taken into consideration when designing its structure and material, which make it apply to fracturing fluid, mud so on mediums.


JST provides high-performance well service packing, which is suitable for high-pressure and abrasive media in drilling, cementing and fracturing services. With our unique and innovative materials, the wear of plunger and fluid end is significantly reduced, therefore the well service packing can be used for long term, which reduces the pump maintenance cost. JST has patent for its well service packings.


Advantages:

1.Be resistant to high pressure, acid and alkali and fracuturing mud;

2.Easy installation, simple groove, good stability;

3.Apply to triplex pumps or quintuple pumps in nearly all current oil fields.

4.Besides, we make targeted adjustments for our materials, which extend seals service lifetime effectively.


Working  Conditions
Temperature range
Pressure
Medium
-46℃~+165℃ 
≤20000 PSI
mud, acid liquid, emulsion, hydraulic oil

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
plunger pump packing seals
Well service plunger pump packing

JST manufactures well service plunger pump packings in a wide variety of materials to suit specific well conditions and operating parameters, they are available in a wide range of elastomeric materials and high performance resins, including NBR, HNBR, FKM, filled PTFE, fabric reinforced rubber.  to suit specific well conditions, operating parameters, and fracturing fluids.

oil scraper ring
Oil Scraper Seal for Scrap Excess Lubricating Oil

The oil scraper ring is a part located at the rear of the pump packing seal.

gate valve polypak seal
Gate valve rubber polypak seal

The ESA valve rubber seal is a type of Polypak, it combines a rubber o-ring type and a conventional lip type seal to produce a unique sealing device.

LNG spring seal manufacturer
LNG nozzle spring energized seals manufacturer

LNG Lip Seal For Filling Guns is commonly used in LNG (liquefied natural gas) filling guns.

back up ring
Downhole PEEK back-up rings

JST's back up ring compensate for large temperature fluctuations. Using Back-up Rings allows O-Rings to be utilized in higher pressure applications, where larger extrusion gaps are required and where there are reciprocating or rotating movements. Back-up Rings are protective and supporting elements with no sealing function. The back up ring material could be  PEEK, modified PTFE.

Hydraulic rod PTFE seals
Hydraulic rod PTFE SPNS step seal

Rod seals are static seals installed in glands or housings to prevent the leakage of fluid from within a cylinder to the outside as the rod cycles.

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

JST FHP series is  made of a helical wound spring and a polymer jacket, which is mainly used for piston.

High-pressure rotary seals material
High pressure rotary shaft seal

Rotary shaft seals with PTFE ring have been specially developed for use in harsh conditions. They are used when shaft seals with classic elastomer lips reach their performance limits.

© Copyright: 2025 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.

粤ICP备12032262号 IPv6 network supported

IPv6 network supported

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.

  • #
  • #
  • #