API 602 Forged Steel Gate Valve for Compact High-Pressure Isolation
Compact forged steel gate valve within the applicable API 602 scope for refinery, chemical, power and industrial piping.
| Size Range | NPS 1/4–4 (DN8–DN100) |
|---|---|
| Pressure Rating | Configuration-dependent; API 602 includes specified combinations such as Class 150, 300, 600, 800 and 1500 |
| Body Material | Forged carbon, low-temperature, stainless, alloy or duplex steel |
| Connection Type | Threaded, SW, BW or flanged RF/RTJ, subject to configuration |
| Design Standard | API 602, current applicable edition |
| Testing | API 598 or contractually specified test standard |
| Operation | Handwheel, gear, pneumatic or electric |
Frequently Asked Questions
API 602 covers compact steel gate, globe and check valve configurations through NPS 4. The permitted size, rating, end connection and construction combination must be checked in the applicable edition.
API 602 includes configuration-specific class or rating combinations such as Class 150, 300, 600, 800 and 1500. There is no single pressure limit for every configuration.
Candidate grades include forged carbon, low-temperature, stainless, chrome-moly alloy and duplex steels. Final selection depends on pressure-temperature rating, medium, corrosion, impact and sour-service requirements.
Depending on the selected size and rating, threaded, socket-weld, butt-weld and flanged RF or RTJ ends may be available. Confirm the permitted combination against the project piping specification.
Provide valve type, NPS/DN, pressure class or rating, end connection, body and trim materials, temperature, medium, testing, inspection and documentation requirements.
Product Overview
API 602 forged steel gate valves are compact isolation valves used in refinery, chemical, power and industrial piping. The applicable standard covers configuration-specific requirements, so valve type, size, rating, bonnet joint, bore and end connection must be confirmed together.
Forged construction alone does not establish suitability for critical service. Material grade, heat treatment, pressure-temperature rating, trim, packing, bolting, examination and test acceptance must match the approved project datasheet.
Standard- and full-bore options may be available, but minimum bore and flow requirements should be confirmed on the certified drawing. Gate valves are intended for fully open or fully closed service rather than routine throttling.
- API 602 Design: Configuration reviewed against the applicable standard edition
- Compact Forged Body: Suitable for small-bore industrial isolation duties
- Multiple End Connections: Threaded, SW, BW and selected flanged configurations
- Testing and Records: API 598 or project-specific inspection and documentation
Discuss Your API 602 Forged Steel Gate Valve Requirements
Send your service conditions and project specification for technical review, valve selection and catalogue support.
API 602 Applications, Materials and Engineering Selection
Use the project datasheet—not the country name alone—to confirm valve type, size, class, end connection, materials, temperature, medium and inspection scope.
Target-Market Applications
- Refinery and petrochemical isolation in Saudi Arabia and the UAE
- Steam, drain, vent and utility lines in power and process plants
- Compact small-bore isolation for Indian EPC and package-unit projects
Material and Trim Options
Candidate forged carbon, low-temperature, stainless, chrome-moly alloy and duplex grades must be checked against pressure-temperature ratings, corrosion, impact and sour-service requirements. Trim, packing, bolting and gasket selections remain project-specific.
Technical Advantages to Verify
- Compact forged pressure-containing construction
- Configuration-specific threaded, SW, BW or flanged ends
- API 598 or contract pressure and leakage testing
- MTC, PMI, NDE and inspection records when specified
Related: NACE MR0175 sour-service requirements · Power and energy applications · API 602 selection guide
API 602 Procurement and Inspection Checklist
Specify the valve from the complete service duty: valve type, NPS, pressure class, end connection, bore or seat opening, body/bonnet joint, wedge and seat construction, materials, packing and operation.
- Applications: compact isolation in refinery, steam, chemical and power piping where the selected configuration is within the applicable API 602 scope.
- Standards: state the API 602 edition, ASME pressure-temperature basis, end-connection standard and contract pressure-test requirement.
- Inspection: request MTC, heat-treatment records, dimensional report, shell and seat test, and PMI/NDE when specified.
- Buying question: confirm whether the duty requires API 602 compact forged construction or an API 600 cast-steel gate valve configuration.
Compare the full selection criteria in the API 602 gate valve guide, review power-project applications, or send the project datasheet.