This butch of gate valves are ranged from 3 inches to 32 inches. With non-rising gate valves and solid wedge, which are not regularly found in such big sized valves, these gate valves are quite special and reliable.
Quick Detail
Type |
Gate Valve |
Nominal Diameter |
20 Inch |
NominalPressure |
150 LB |
Construction |
Non-rising Stem;Solid Wedge |
Connection |
Flat Flange |
Design & Manufacture |
API 600 |
End to End Dimension |
ASME B16.10 |
Test & Inspection |
API 598 |
Flange Dimension |
ASME B16.5 |
Body Material |
WCB |
Disc Material |
WCB+13Cr |
Seat Material |
A105+13Cr |
Temp. Range |
-29℃~180℃ |
Media |
W.O.G |
Features
Non-Rising Stem
For a valve of the non Rising Stem type, there is no upward stem movement if the valve is opened. The stem is threaded into the disk. As the handwheel on the stem is rotated, the disk travels up or down the stem on the threads while the stem remains vertically stationary.
Solid Wedge
Solid wedge is the most commonly used disk by its simplicity and strength.
A valve with this type of wedge can be installed in each position and it is suitable for almost all liquids. The solid wedge is a single-piece solid construction, and is practically for turbulent flow.
Advantage
-Good shutoff features
-Gate valves are bidirectional and therefore they can be used in two directions
-Pressure loss through the valve is minimal
Technical Drawing
Witnessing Tests
Packing
Reports
For each order, Dervos will provide inspection reports to show you the whole inspection process and results. Plus, we will provide material report to let you know that the material we provide is as per standards.