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.
Pumpdown plugs separate cement from the displacement fluid during liner cementing operations.
The JST valve insert seal is mainly used for sealing valve seat of fracturing pump. It is made of modified polyurethane material of excellent extrusion resistance, puncture resistance and fatigue resistance, which guarantees the fracturing work under various working conditions.
OD Face Seal are 100% compatible with Cameron Type FLS and FLS-R Gate Valves, It is spring-loaded and pressure-energized to improve gate and seat service life.
This is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries.
Dovetail groove is used to put the O-ring or elastomer dovetail seal during installation. This groove is not common because it is more expensive to machine, but this dovetail groove can avoid seal extrusion out.
The FDR seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange external face seal.
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: 2025 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.
Scan to wechat
