BW Forged Steel Check Valve
Pressure Range: Class 150 ~ 2500
Nominal Size Range: DN 50 ~ 900, NPS 2″ ~ 36″
Connection: Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW)
Bolted Bonnet (BB) Cover
Swing Type, Anti-Rotation Disc
Renewable seat rings
Design: API602, BS5352
Pressure-temperature rating: ASME B16.34
Face-to-face dimensions for butt weld and flanged valves: MSS SP-84
Flange design: ASME B16.5
Butt welding design: ASME B16.25
Socket welding design:ASME B16.11
All valves are designed to comply with the requirements of ASME B16.34, and the ASME as well as customers’ requirements as applicable.
A105, F11, F316, F304, F316L, F304L, LF2
Quality Assurance (QA):
Every step from procurement through production, welding, assembly, testing, and packaging is in accordance with quality programs and procedures (ASME Section III manual and ISO 9001 manual).
Quality Control (QC):
The QC is responsible for all aspects of quality, from receiving of material to control of machining, welding, nondestructive examination, assembly, pressure testing, cleaning, painting, and packaging.
Gangye valve is pressure tested in accordance with ASME B16.34, API 598, or special customers’ requirements as applicable.