Learn how PSL 3 and PSL 3G affect high-pressure gate valve testing, material traceability, gas leakage checks, documentation, and procurement. Use the included comparison table and RFQ checklist to review supplier proposals.
PSL 3 and PSL 3G Testing Procedures for High-Pressure Gate Valves Continua a leggere »
API 6A material classes help buyers align wellhead and pressure-control equipment materials with general or sour service. This guide explains the AA-to-HH progression, specification risks, documentation, and RFQ requirements.
API 6A Material Classes (AA to HH): Selecting for Sour Service Continua a leggere »
Upgrading from PR1 to PR2 requires more than an additional pressure test. Buyers must verify API 6A design validation, configuration coverage, materials, operating conditions, documentation, and wellhead interfaces.
How to Upgrade from PR1 to PR2 Performance in Wellhead Valves Continua a leggere »
PR1 and PR2 decide how much design-validation evidence an API 6A wellhead valve carries. This guide explains the difference, when the higher level is justified, what qualification records to request, and how to write an inquiry that returns comparable bids.
API 6A PR2 vs PR1: Performance Requirement Level Selection Guide Continua a leggere »
API 6A generally applies to wellhead and Christmas tree equipment, while API 6D covers pipeline and piping valves. This guide helps buyers identify the correct scope and prepare a technically complete valve RFQ.
API 6A vs API 6D: Which Standard Applies to Your Oil & Gas Valves? Continua a leggere »
A valve can pass a hydrostatic test and still leak gas. API 6A PSL 3G adds defined gas testing for wellhead and Christmas tree equipment where that gap matters. This guide covers when to specify it, how to write the service data, what the gas-test records must show, and how to build an auditable RFQ.
Why Gas Wells Demand PSL 3G: Gas-Tight Sealing in API 6A Valves Continua a leggere »
