Petrochemical
Heavy-duty valves for refineries and chemical plants: ball, gate, globe and check valves built to resist corrosion, erosion and extreme temperature while meeting API, ASME and fire-safe standards.
Refineries and petrochemical plants run some of the most demanding services in industry: corrosive hydrocarbons, aggressive chemicals, high-pressure steam and wide temperature swings, often all within one unit. The valves have to isolate and regulate these media safely for years, with the heavy wall sections and certified materials that severe service requires.
Purple Valves supplies the full spectrum of process valves (ball, gate, globe and check) built to API and ASME standards with fire-safe construction, corrosion-resistant metallurgy and the testing pedigree that refinery service demands.
Common Challenges in Petrochemical
Corrosion and erosion
Aggressive media and high velocities erode and corrode standard valves. Heavy-wall patterns such as API 623 globe valves and upgraded metallurgy provide the additional margin severe service needs.
High temperature and pressure
Process units swing between cryogenic and high-temperature steam duty. Valves need pressure-temperature ratings, bonnet design and seat materials matched to the full operating envelope.
Fire safety and emissions
Hydrocarbon service demands fire-safe valves and low fugitive emissions. Fire-tested seat and stem designs plus certified packing protect personnel and meet environmental compliance.
Recommended Valve Types
Process Ball Valves
Quick, tight shut-off for hydrocarbon and chemical isolation to API 608, with fire-safe and anti-static options for severe service.
View 143 products
Gate Valves
Low-pressure-drop isolation to API 600 across process units, with rising-stem position indication for clear status at a glance.
View 63 products
Globe Valves
Heavy-duty globe valves to API 623 deliver precise throttling with extra corrosion and erosion margin for severe service.
View 42 products
Check Valves
Swing and dual-plate check valves to API 594 prevent reverse flow and protect pumps and compressors across process headers.
View 80 productsApplications, Materials & Standards
Key Applications
- Crude distillation and cracking units
- Reactor feed and product isolation
- Corrosive chemical and acid service
- High-pressure steam and condensate
- Flare and relief headers
- Pump and compressor protection
Typical Materials
- Carbon and alloy steel (WCB, WC6, WC9) bodies
- Stainless and duplex (CF8M, F51) for corrosive media
- Heavy-wall patterns for erosion resistance
- Graphite and PTFE fire-safe packing and seats
Standards & Certifications
- API 600 / 602 gate valves
- API 608 ball valves · API 623 globe valves
- API 594 check valves · API 598 testing
- ASME B16.34 · API 607 fire-safe
Specifying valves for petrochemical?
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