Industrial Valve Standards & Specifications
This industrial valve standards guide explains the most commonly used API, ASME, ANSI, MSS, DIN, EN, ISO, BS and JIS standards for gate valves, ball valves, globe valves, check valves, butterfly valves, forged valves and strainers used in oil, gas, petrochemical, power generation, water treatment and industrial pipeline systems.
What Are Valve Standards?
Valve standards define how industrial valves are designed, manufactured, tested, inspected, marked and connected to pipeline systems. For international engineering projects, valve standards help ensure pressure safety, dimensional interchangeability, material traceability, leakage control and reliable long-term operation.
In industrial valve procurement, API valve standards and ASME valve standards are especially important. API standards are widely used for oil and gas, refinery and pipeline applications, while ASME standards define pressure-temperature ratings, flange dimensions, face-to-face dimensions and end connections. Testing standards such as API 598 help verify shell strength, seat tightness and sealing performance before shipment.
ZONCIC supplies industrial valves according to common international standards including API 600, API 6D, API 602, API 598, API 609, ASME B16.34, ASME B16.5, ASME B16.10, ASME B16.25, ASME B16.47 and project-specific requirements.
Main Industrial Valve Standards
API Valve Standards
API standards are widely used for oil, gas, refinery, pipeline and petrochemical valve applications.
- API 6D Pipeline Valves
- API 600 Steel Gate Valves
- API 602 Forged Steel Valves
- API 594 Check Valves
- API 598 Valve Inspection & Testing
- API 609 Butterfly Valves
ASME Valve Standards
ASME standards define pressure ratings, dimensions, flange connections and welding ends.
- ASME B16.34 Pressure-Temperature Rating
- ASME B16.5 Pipe Flanges
- ASME B16.10 Face-to-Face Dimensions
- ASME B16.25 Buttwelding Ends
- ASME B16.47 Large Diameter Flanges
ANSI Pressure Classes
ANSI pressure classes are commonly used for industrial valve selection and pipeline design.
- Class 150
- Class 300
- Class 600
- Class 900
- Class 1500
- Class 2500
MSS Standards
MSS standards support valve marking, pressure testing, visual inspection and dimensional requirements.
- MSS SP-25 Marking System
- MSS SP-55 Casting Quality
- MSS SP-61 Pressure Testing
- MSS SP-70 Cast Iron Gate Valves
- MSS SP-71 Swing Check Valves
DIN / EN Standards
DIN and EN standards are commonly required in European industrial and process pipeline projects.
- DIN Valve Standards
- EN Flange Standards
- European Pressure Equipment Requirements
- Project-Specific DIN / EN Valve Specifications
ISO / BS / JIS Standards
ISO, British and Japanese standards may be required for regional engineering projects and owner specifications.
- ISO Industrial Valve Standards
- BS Valve Specifications
- JIS Valve Standards
- International Project Valve Requirements
Common Valve Standards Reference Table
The following valve standards table summarizes common industrial valve standards used for design, manufacturing, testing, flange connection, pressure rating and dimensional control.
| Standard | Description | Common Application |
|---|---|---|
| API 600 | Steel gate valve design and manufacturing standard. | Gate Valves |
| API 602 | Forged steel gate, globe and check valve standard. | Forged Valves |
| API 6D | Pipeline valve standard for oil, gas and transmission pipelines. | Ball Valves, Gate Valves |
| API 598 | Valve inspection and pressure testing standard. | All Industrial Valves |
| API 594 | Check valve design standard including wafer and dual plate types. | Check Valves |
| API 609 | Butterfly valve design standard. | Butterfly Valves |
| ASME B16.34 | Pressure-temperature rating and general valve design requirements. | Gate, Ball, Globe, Check, Butterfly Valves |
| ASME B16.5 | Pipe flange and flanged fitting dimensions up to NPS 24. | Flanged Industrial Valves |
| ASME B16.10 | Face-to-face and end-to-end dimensions of valves. | Flanged and Butt Weld Valves |
| ASME B16.25 | Buttwelding end preparation standard. | Butt Weld Valves |
| ASME B16.47 | Large diameter steel flange standard. | Large Size Industrial Valves |
| MSS SP-25 | Valve marking system for identification and traceability. | Industrial Valve Marking |
| MSS SP-55 | Visual inspection standard for steel castings. | Cast Steel Valve Bodies |
| MSS SP-61 | Pressure testing standard for steel valves. | General Industrial Valves |
Valve Pressure Classes and Selection
Pressure class selection is one of the most important parts of industrial valve specification. Common pressure ratings include Class 150, Class 300, Class 600, Class 900, Class 1500 and Class 2500. The correct pressure class depends on design pressure, operating temperature, fluid type, material grade and applicable project standards.
| Pressure Class | Typical Use | Common Valve Types |
|---|---|---|
| Class 150 | Low pressure water, utility and general industrial service. | Gate, Ball, Globe, Check, Butterfly |
| Class 300 | Medium pressure process lines and industrial pipeline systems. | Gate, Ball, Globe, Check |
| Class 600 | Oil, gas, petrochemical and higher pressure process service. | Gate, Ball, Globe, Check, Forged Valves |
| Class 900 | High pressure refinery, power and steam applications. | Gate, Globe, Check, Forged Valves |
| Class 1500 | Severe service, high pressure and high temperature systems. | Forged Gate, Globe, Check Valves |
| Class 2500 | Critical high pressure industrial and energy applications. | Forged and Pressure Seal Valves |
Valve Testing and Inspection Standards
Valve testing standards help confirm whether industrial valves can safely perform under specified pressure and operating conditions. API 598 is one of the most commonly used valve testing standards for shell tests, seat leakage tests and closure tests. Depending on project requirements, inspection may also include PMI, NDE, dimensional inspection, coating inspection and material certificate review.
Common Valve Inspection Items
- Hydrostatic shell pressure test
- Hydrostatic seat leakage test
- Low pressure air seat test
- Visual and dimensional inspection
- PMI material verification when required
- NDE options including PT, MT and UT
- Flange, face-to-face and end connection verification
- Marking, nameplate and packing inspection
Valve Standards by Valve Type
Different industrial valve types may follow different design, testing and dimensional standards. Selecting the right valve standard helps ensure reliable operation, correct installation and compliance with project specifications.
| Valve Type | Common Standards | Typical Applications |
|---|---|---|
| Gate Valve | API 600, API 602, ASME B16.34, API 598 | Isolation service, oil and gas, steam, water and industrial pipelines. |
| Ball Valve | API 6D, ASME B16.34, API 598 | Pipeline shut-off, block service and quick opening/closing applications. |
| Globe Valve | ASME B16.34, API 598, ASME B16.10 | Flow control, throttling, steam and process control service. |
| Check Valve | API 594, API 598, ASME B16.34 | Backflow prevention in pipeline and pump discharge systems. |
| Butterfly Valve | API 609, ASME B16.34, API 598 | Water treatment, HVAC, chemical process and industrial utility systems. |
| Strainer | Project specifications, ASME connections and pressure ratings | Pipeline filtration and protection of pumps, meters and control valves. |
Related Industrial Valve Solutions
Explore ZONCIC industrial valve solutions designed for API, ASME, ANSI and project-specific requirements.
Valve Standards FAQ
What are industrial valve standards?
Industrial valve standards are technical rules used to define valve design, pressure rating, material, dimensions, testing, marking and quality inspection. They help ensure valves can be safely used in pipeline and process systems.
What is API 598?
API 598 is a commonly used valve inspection and testing standard. It covers pressure testing requirements such as shell testing, seat testing and leakage acceptance for industrial valves.
What is ASME B16.34?
ASME B16.34 defines pressure-temperature ratings and general requirements for valves. It is widely used for steel valves in industrial pipeline systems.
What valve standards are used for oil and gas projects?
Oil and gas projects commonly use API 6D, API 600, API 602, API 598, ASME B16.34, ASME B16.5 and project-specific material and testing requirements.
Can ZONCIC supply valves according to API and ASME standards?
Yes. ZONCIC supplies industrial valves according to common API and ASME requirements, including gate valves, ball valves, globe valves, check valves, butterfly valves, forged valves and strainers for industrial pipeline systems.
Need Valves Compliant with API / ASME / DIN Standards?
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