Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of valve seat in China. If you're going to wholesale cheap valve seat made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Product Overview
The valve seat is a key sealing assembly dedicated to ball valve systems, creating a precision fit with the valve sphere to realize fluid shut-off, flow regulation and leakage-proof protection in industrial pipelines. It is compatible with fixed ball valves, floating ball valves and other mainstream valve structures, and widely deployed in demanding working conditions such as energy transmission, petrochemical, metallurgy and ultra-low temperature fluid transportation. We provide personalized customization for material formulas and precision machining processes based on operating pressure, ambient temperature and medium corrosion levels, featuring outstanding sealing reliability and ultra-long service cycle.
Technical Parameters
|
Parameter Item |
Performance Data |
|
Dimension Range |
1/2" to 56" |
|
Pressure Class |
PN16-PN420(Class150-4500) |
|
Body Base Material |
Carbon steel A105N/LF2, austenitic stainless steel 304/316L, alloy steel, Hastelloy, Monel alloy and other special alloys |
|
Sealing Layer Material |
Stellite alloy, tungsten carbide (WC), chromium carbide (CrC), Inconel and other high-hardness surfacing materials |
|
Coaxiality Tolerance |
≤0.05mm |
|
Roundness Precision |
≤0.02mm |
|
Surface Hardness |
HRC 55+ (Metal Base) |
|
Surface Finish |
Ra ≤ 0.4 μm (sealing surface) |
|
Outer Diameter Tolerance |
1/2" – 4": +0.03 mm;6" – 12": +0.05 mm |
|
Inner Diameter Tolerance |
1/2" – 4": 0~+0.03 mm;6" – 12": 0~+0.05 mm |
|
Operating Temperature |
-196°C to 1200°C (matched with sealing layer material) |
Product Advantages
- Core sealing component with precision machining, achieving zero leakage for pipeline fluid sealing systems
- Universal compatibility with fixed and floating ball valves, strong interchangeability and installation adaptability
- Customizable solutions for high-pressure, corrosion-resistant and low-temperature extreme working environments
- Excellent wear resistance and fatigue resistance, maintaining stable performance in long-term continuous operation
- Adapt to high-demand industrial scenarios, with strong medium adaptability and environmental tolerance
Application & Scenarios
Applicable Fluids:
Industrial water, saturated steam, crude oil, natural gas, corrosive chemicals, cryogenic liquefied gases
Applicable Environments:
High-pressure transmission systems, ultra-low temperature working conditions, corrosive medium pipelines, long-cycle industrial equipment
Application Industries:
Oil & gas exploitation, petrochemical engineering, energy power, cryogenic equipment, water conservancy projects, metallurgical manufacturing
Frequently Asked Questions
What sealing materials are available for extreme temperature environments?
We offer Stellite, tungsten carbide and other specialized alloys, which can stably operate in the temperature range of -196°C to 1200°C to meet ultra-low temperature and high temperature working conditions.
Can the valve seat be customized for corrosive media?
Yes, we can select Hastelloy, Monel and other corrosion-resistant alloys and matching surfacing materials according to the corrosion level of the medium.
What machining precision guarantees the sealing effect?
Our valve seats adopt high-precision grinding technology, with coaxiality ≤0.05mm and roundness ≤0.02mm, ensuring a perfect fit with the valve ball and zero leakage sealing.
How to extend the service life of the valve seat?
Choose matching materials according to working conditions, avoid overpressure operation, and regular maintenance can effectively extend the service life of the valve seat.
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