Fugitive Emission Certified Valves in stock ISO 15848-1, API 622/624/641
August 18th, 2025 by Amanda Schumann
Production plants generate gas emissions known as volatile organic compounds (VOCs) and hazardous air pollutants (HAPs). 60% of all fugitive emission piping systems come from valve stem packing. These gases enter our atmosphere, contributing to ozone, smog, and other organic aerosols forming. At the same time, these pollutants can hurt the environment and even cause […]
STEEL PIPE DIMENSIONS AND WEIGHTS
November 6th, 2024 by Amanda Schumann
We’ve shared our data sheet on ANSI (ASTM) carbon and alloy steel pipe dimensions (mm) and weights (kg). Nominal bore sizes include 1/8″ (6mm) up to 26″ (650mm), up to XXS. Click here to view and download our steel pipe dimension data sheet. Global Supply Line keeps large stocks of A234 WPB buttweld fittings up […]
The American Petroleum Institute API 6D Standard – Double-Block-and-Bleed Ball Valves
May 21st, 2024 by Amanda Schumann
API 6D details three double block categories: DBB (double-block-and-bleed), DIB-1 (Double-isolation-and-bleed type 1), and DIB-2 (Double-isolation-and-bleed type 2). Trunnion Mounted Ball Valve Seat Designs Trunnion mounted API 6D ball valves have 2 seats that (one upstream, one downstream) can have a single (SPE) or double piston effect (DPE) seats. Single Piston Effect (PSE) Spring loaded […]
NPT (ASME B1.20.1) V.S. LP (LINE PIPE) API 5B
October 26th, 2023 by Amanda Schumann
NPT is for fittings, LP is for pipe but is also used for high pressure plain pipe nipples/swages. Yes the thread is the same, but… The differences are: B1.20.1 NPT V.S API 5B LINE PIPE (LP) THREAD FORM 1. NPT HAS NO RECESS – LP HAS A RECESS 2. FEMALE THREAD – PLANE OF VANISH […]
GLOBE VALVE DESIGN DISC STYLE TYPES
August 21st, 2023 by Amanda Schumann
OPERATION Australian Pipeline Valve globe valves are for services requiring frequent operation for on-off isolation service as well as throttling. Never attempt throttling at under 20% of stem travel. Closer throttling, can result in higher pressure drops which may cause excessive velocities or cavitation and could cause vibration or high noise levels resulting in damage […]
ISO 5211/MSS SP-101 Mount Flange Dimension Comparison
July 24th, 2023 by Amanda Schumann
Valve, gearbox & actuator manufacturers often refer to obsolete/superseded mount pad drilling standards. Some derive from old USA standards that were not carried forward onto MSS SP-101. Some are metricated versions of MSS SP-101 which were never adopted by ISO 5211 but never the less, are in use. This comparison guide attached allows manufacturers, suppliers & […]
RANGE OF API 6A/6B/BX
January 30th, 2019 by Amanda Schumann
Product information for different types of Flanges Adaptors and Connectors
Valve Seat Seal Materials and Service Types
November 21st, 2018 by Amanda Schumann
A Technical guide to Valve Seat seal materials and service types
Valve Suitability Guide
July 18th, 2018 by Amanda Schumann
Technical information on Valve materials Service chemical resistance and corrosion suitability guide