English
A seal assembly for use in a wellbore tool, it acts as a flow restrictor protecting a lower end of the seal assembly from high pressure and/or high volume flow.
Brand:
JST SealsItem NO.:
ESYPayment:
T/TProduct Origin:
ChinaShipping Port:
GuangzhouOrder(MOQ):
50
Seal stack for well tools sliding sleeve
In many well completion operations, it frequently occurs that it is desirable, either during the completion, production, or workover stages of the life of the well, to have fluid communication between the annular area between the interior of the casing and the exterior of the production tubing or workstring with the interior of such production tubing.
A seal assembly for use in a wellbore tool, it acts as a flow restrictor protecting a lower end of the seal assembly from high pressure and/or high volume flow.
In such well tools, a series of upper and lower primary seals are placed in the housing for dynamic sealing engagement relative to the exterior of a sleeve which passes across the seals during opening and closing of the port element. As with the seal stack, such primary sealing means also represent an area of possible loss of sealing integrity.
Application：
1. FLS and FLS-R Gate Valves
2. Well tools like sliding sleeves that can be used for infinitely adjustable switches
2. Bi-directional pressure bearing piston or rod seal
 |
Features:
1. High temperature and high pressure resistance 2. Bidirectional alternating pressure bearing 3. Reciprocating seal 4. High reliability - verification of over 2400 reciprocating tests 5. JST patented seal design |
|
Technical Parameter |
|||||
|
Temperature range |
Pressure |
Medium |
Material |
Compliant with standard |
|
|
4℃~177℃ |
≤15000psi |
water, oil, natural gas, fracturing fluid, H2S |
PC005/PC002/PC007/PEEK/HNBR/FKM |
API 19LH V1 standard |
|
Existing Standard Grooves:
G=4.76 L=45.5
G=6.35 L=38(50.8)
G=7.94 L=42.6
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.
Categories
V-Packings are used in various Oilfield Downhole equipment such as various Valves etc. V-Packings are extremely suitable for usage in medium to heavy duty applications. Vee Packings accept low and high pressure while operating in the most extreme conditions and also if there exists any misalignment between the sealing gaps.
The V Stack seal assembly is comprising a top adapter or anti-extrusion ring (1), Vee Rings (2) and a bottom adapter (3). In the assembly the energizing axial force is transferred between the individual packing rings so that each ring is pressed into positive contact with the mating hardware surface. Special material grades are available for a large variety of working conditions. The chevron seal stack material could be PEEK, modified PTFE and spring.
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.
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.
Spring energized valve stem packing contributes to the overall performance of industrial operations. They serve the vital task of keeping oil and liquids in while keeping contaminants out.
BT Seal is a static seal that is used to seal rough casing and tubing. It is constructed from an elastomer with anti-extrusion spring bonded within it. Springs are available in stainless steel, elastomer could be HNBR or NBR.
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).
In LNG operations, valves can regularly encounter temperatures below -320 F (-196 C) and pressures above 750 pounds per square inch (psi). They are also subjected to periodic variations in temperatures known as “thermal cycling,” which can result in hardware expansion as well as shrinkage and material stresses. These factors make reliable, long-term valve operation an engineering challenge.
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
No. 1, Xinyu North Road, Ningxi Street, Zengcheng District, Guangzhou, China 511340
© Copyright: 2024 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.
Scan to wechat
