ASV-A500 — Axial Flow Anti-Surge Valve
ASV-A500 is available in NPS 4”~ NPS 32”, Class300 ~ Class900.
Application
Suitable for gas compressor anti-surge control system, as a safety protection device.
In a typical gas pressure regulating station the sequence is: Station inlet → Filtration → Regulation → Metering → Outlet.
Technical specification
| Item | Value |
|---|---|
| Application | Suitable for gas compressor anti-surge control system, as a safety protection device |
| Execution Standards | IEC 60534 |
| Nominal Size | NPS 4”~ NPS 32” |
| Nominal Pressure | Class300 ~ Class900 |
| Connection | Flange |
| Ambient Temperature | -73°C~+70°C (can be customized) |
| Intrinsic Error | Upto+1% |
| Hysteresis | <1% |
| Dead Band | <1% |
| Flow Characteristic | Equal percent, Linear, etc. Stroking Time Open Close < 1s (Solenoid) < 12s (Positioner) < 2s (Positioner) |
| Seat Leakage | FCI 70-2 Class IV/V/ VI |
| Materials | Body Forged steel LF2, etc Trim _ Stainless steel, steel, etc |
Figures as printed in the 2025 catalogue. Final data is confirmed per project.
Design standards
Designed to IEC 60534, as stated in the 2025 catalogue.
Reference projects
- 2023 — DN800 CLASS600 control valves for Shenyang Branch of the China National Oil and Gas Large Flow Calibration Station
- 2022 — Zhongwei Station II, Middle Section of PipeChina West-East Gas Pipeline III – DN600 Class900 natural gas pressure control system
- 2019 — China-Russia East-route Natural Gas Pipeline
Project references are taken from the PetroBest 2025 group catalogue.
Frequently asked questions
What sizes is the ASV-A500 available in?
NPS 4”~ NPS 32”.
What pressure classes does the ASV-A500 cover?
Class300 ~ Class900.
Which standard is the ASV-A500 built to?
IEC 60534.
What materials are used in the ASV-A500?
Body Forged steel LF2, etc Trim _ Stainless steel, steel, etc
Request a quotation
Send the design conditions, medium, flow rate and pressure range, and we will return a technical proposal and a price.