Metal Seated Gate Valves
Overview
The GCF gate valve model is a ductile iron full bore double – flanged metal – seated gate valve designed to comply with ISO 5996 and BS 5163 for water, sewage and industrial applications. • They can be long body oval type series 4300 or short flat type 3100 & 3300 series. • The Gate valves are available with Non-Rising Stem (NRS) or outside stem & yoke (OS&Y). • They can be equipped for manual operation by tee cap or handwheel. • They can also be supplied to order with gearbox or electrical actuator.
Key Features
Applications
Water Transmission & Distribution Networks
Wastewater Treatment Plants
Irrigation & Drainage Systems
Industrial Utilities
Products Details
DIN 3232
Design Code
DIN 3202 F6:1984
Face to face and center to face dimensions of flanged valves
ISO 7005-2:1988
Metallic flanges – Part 2: Cast iron flanges
EN 1092-2:1997
Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Cast iron flanges
EN 14901:2006
Ductile iron pipes, fittings and accessories. Epoxy coating (heavy duty) of ductile iron fittings and accessories. Requirements and test methods
ISO 4633: 2002
Rubber seals – Joint rings for water supply, drainage and sewage pipelines – Specification for materials
Shell and Closure Test
Shell test pressure
Shall be 1.5 x CWP (cold working pressure)
Closure / Disc pressure
Shall be 1.1 x CWP
Visually detectable leakage
From any external surface of the shell is not permitted
Visually detectable leakage
from the disc in the closed position during the duration of the test shall not be permitted
Test Duration Table
Valve Size
65 ≤ DN ≥ 150 200 ≤ DN ≥ 300 DN ≥ 350
Shell (sec)
60 120 300
Closure (sec)
60 120 120