Oil and gas seal

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.

  • Item NO.:

    EVZ
  • Payment:

    T/T
  • Product Origin:

    China
  • Shipping Port:

    Guangzhou
  • Order(MOQ):

    50
  • Product Detail

Well service plunger pump packing


In order to eliminate extrusion and provide excellent wear resistance for fracturing, acidizing and cementing pumps, JST has developed high performance well service pump packings; It provides maximum sealing for high-pressure oil well service pump.


JST manufactures well service 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 like the below applications:

Used in various fracturing and cementing applications.

Used where high pressure, chemical fracturing and carbon dioxide are present.

Used for extreme performance under high pressure and where abrasive proppant is required.


The well service pump packing are used in rod glands to seal the extension rods which force fluid through the pump in positive displacement pump applications (also known as plunger pumps).  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.  

They are manufactured with superior quality and workmanship to provide exceptional sealing.  JST produces complete packing assemblies -- header ring, pressure ring and female adapters -- as well as custom machined lantern rings and spacers.  

Advantages:

1.More cost-effective 
2.Suitable for various well conditions
3.Standard and custom sizes are available
4.Longevity of service life



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
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.

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.

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.

HNBR Centralizer fins design
Downhole MWD centralizer rubber fins

JST's centralizer rubber fins is made according to customer requirements. The centralizer fin has a retrievable, reseatable, flexible design. This Rubber and metal reinforced rubber centralizer fins are available for a variety of MWD (measurement while drilling) tools and oil well logging and monitoring instruments.

PR2 tested SLAB seal
Elastomeric wellhead secondary pack off seal

Pack off seal or Secondary Seal Assemblies is installed in the lower seal area of the Casing Spool or Tubing Head.

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.

Blue phenolic wear ring guide ring
Turquoise polyester resin wear ring

The function of a hydraulic wear ring is to guide the piston and piston rod of a hydraulic cylinder, absorbing transverse forces. At the same time, it prevents metal-to-metal contact, optimizing the performance of the sealing system.

API 6D ball valve seal
Bidirectional high-pressure ball valve seat seal

Bidirectional high-pressure ball valve seat seal is a type of seat sealing that can withstand bidirectional pressure, with good low-temperature performance and airtightness, and is widely used in 6D ball valves.

© 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.

  • #
  • #
  • #