HomeValve AlternativesAnderson Greenwood
Valve AlternativeOrigin: USAEst. 1947

Anderson Greenwood Valve Alternative

Anderson Greenwood (Emerson Automation Solutions)

Anderson Greenwood (now part of Emerson Automation Solutions) manufactures pilot-operated pressure relief valves (POPRV), direct-acting safety relief valves, and instrumentation monoflanges / double block and bleed valves. Anderson Greenwood Series 90 and Series 500 pilot-operated safety valves are extensively specified in refineries, gas processing plants, and petrochemical facilities globally. Vajra Industrial Solutions supplies equivalent API 526-compliant spring-loaded safety relief valves, pilot-operated safety valves, and instrumentation monoflanges at competitive pricing.

Legal DisclaimerAnderson Greenwood, Series 90, and related product names are trademarks of Emerson Electric Co. Vajra Industrial Solutions is not affiliated with Anderson Greenwood or Emerson. We supply independently sourced pressure relief valves to API 526 and ASME Section VIII specifications.

Why Consider Anderson Greenwood Alternatives?

Anderson Greenwood (Emerson) safety valves carry a significant premium — often 3–5× cost of API 526-compliant alternatives for non-critical service
Pilot-operated safety valves are over-specified for standard ASME Section VIII vessel service where direct-spring SRVs suffice
API 526 direct-spring safety relief valves for utility and process service available with short lead times
Replacement spring cassettes, pilots, and soft goods kits for existing POPRV installations available promptly

Anderson Greenwood → Vajra Equivalence Reference

Indicative equivalences for common Anderson Greenwood valve series. Dimensional and specification compatibility must be verified by the project engineer before substitution.

TypeAnderson Greenwood SeriesVajra EquivalentNotes
Pilot-Operated Safety Relief ValveAnderson Greenwood Series 90 POPRVPilot-Operated Safety Relief Valve API 526Modulating or snap-action pilot, CDTP ≤10% of set pressure, API 526 orifice D–T
Direct Spring Safety Relief ValveAnderson Greenwood Type 727 / 81PSpring-Loaded Safety Relief Valve API 526API 526, API 527, ASME Section VIII UV stamp, set 0.5–200 barg
Instrumentation MonoflangeAnderson Greenwood MonoflangeMonoflange Double Block and Bleed ValveSS 316, 6000 psi, 2-valve or 3-valve monoflange, integral block and bleed
Pressure Gauge Root ValveAnderson Greenwood GV SeriesNeedle Valve / Root Valve for InstrumentsSS 316, HP-rated, instrument isolation for gauges and transmitters

Why Choose Vajra

API 526 safety relief valves — orifice sizes D through T, WCB/SS 316/Duplex body
ASME Section VIII UV stamp and National Board certification available
API 527 seat tightness tested — 0 bph or 40 bph leakage per orifice size
Pilot-operated safety valves for back-pressure service and set pressure <10% CDTP
Full documentation: datasheet, ASME U-stamp certificate, material certificates 3.1

Certifications & Standards

API 6DAPI 607 (Fire Safe)ASME B16.34API 598EN 10204 3.1IBR (Indian Boiler)ISO 9001:2015NACE MR0175

Common Applications

Pressure vessel overpressure protection — API 526 spring-loaded SRVsGas processing and LNG plants — pilot-operated safety valves for high back pressureInstrumentation manifolds — monoflange double block and bleed valvesCompressor discharge safety relief — ASME Section VIII UV stamp

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