Oil and gas seal

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 fracturing 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.

stem seal u-packing
Stem U packing for type FC gate valve

JST's ESU series stem packings, also known as u packing, are designed to be placed between the stem and bonnet of Type FC gate valves. This stem packing gives you a reliable seal for superior performance.

Phenolic wear ring catalogue
WR phenolic resin wear ring

Phenolic wear rings are designed with tubing made from fine weave cotton fabric wound on molds and imbued with phenolic resin. It has high mechanical properties, good oil resistance, low water absorption and high wear resistance.

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.

Secondary seal Springsele S seal
Casing and tubing hanger S seal for wellheads

The ID S seal is used for wellheads, downhole tools and surface pressure control equipment as a critial part.

rod T-seal
Rod T-Seal Compact Seal

T-Seal is a compact three-piece double acting seal composed of a T shaped elastomeric element and two rigid anti-extrusion rings. These compact sealing elements are designed for installation in simple O-ring grooves and are often used to modify faulty O-rings.

Water pump plunger seal
High pressure water pump seal

The water pump seal D1 is composed of one or couple of fabric reinforced Chevron V rings (DM), back up ring (DD) and header ring (DS) for plunger sealing.

© 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.

  • #
  • #
  • #