See how top-entry access affects in-line servicing of an API 6A flat gate valve. Compare isolation needs, replaceable parts, testing obligations, and RFQ details before selecting a design.
Top-Entry vs In-Line Maintenance for an API 6A Flat Gate Valve Читать дальше »
Multi-phase flow makes an orifice plate throttle valve harder to size than a single gas or liquid rate suggests. This guide sets out the operating cases, materials, standards, and RFQ data buyers should confirm before requesting a quotation.
Sizing a Manual Orifice Plate Throttle Valve for Multi-Phase Flow Читать дальше »
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 Читать дальше »
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 Читать дальше »
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? Читать дальше »
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 Читать дальше »
