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 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.

Frac pump fluid ends parts
Fluid end valve and seats

We have been manufacturing various types of fluid end valve and seats for both frac pumps and mud pumps, covering various models for the most dominant pumps in the market.

hammer union seals ring
Standard size hammer union seal

Hammer Union Seals are used in hammer union-style pipe connections to establish flow lines and prevent leakage. It is widely used in the oil & gas industry.

Piston compact seal
Hydraulic double acting compact seal

DAS Compact Seal is a double-acting seal and guiding element comprising an elastomeric profile seal ring, two back-up rings and two guide rings.

Plunger pump packing seal
Pressure pump seal for plunger pump

The pump plunger sealing system is adopted in the pump, which can effectively prevent the damage caused by water leakage and prevent the pump failure caused by the plunger friction overheating.    

API6A wellhead seal t-seal
API6A casing head T-seals

T-seals are three piece seals with an elastomeric lip and hard plastic anti-extrusion rings, it is proved to be of long time service. The standard design will fit into an o-ring gland and can be machined or net moulded.

P seal manufacturer
P seal for casing and tubing

P seal is constructed from an elastomer with back up rings for anti-extrusion. Energized by the injection of sealant, it is a static seal that is used to seal rough casing and tubing. Backup rings are available in Mesh Stainless Steel or Solid Carbon Steel.

© 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.

  • #
  • #
  • #