Rising Stem Gate Valve

Rising Stem Gate Valve
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Product Detailed

Specification parameters

Name Rising Stem Gate Valve
Model Z41H
Size NPS 2′′~NPS 32′′ DN50~DN800
Pressure CLB150~CL2500     PN10~PN420
Temperature -196°C~+600°C
Application Water, sewage, construction, petroleum, chemical, food, pharmaceutical, textile, electric power, shipbuilding, metallurgy, energy systems, etc.
Body Material carbon steel, stainless steel, alloy steel

Design Specification:

Design Standards API 600, ASME B16.34, GB/T 12234
Structure length ISO14313/API 6D, ASME B16.10, GB/T 12221, DL/T 53
Connection Standard ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592, DL/T 531, JB/T3595, JB7490
Pressure test API 6D, API 600, API 598, GB/T 13927, GB/T 26480, JB/T 9092, JB/T3595
pressure and temperature rating ASME B16.34, GB/T 12224

Product Description

The opening and closing part of the rising stem gate valve is the gate. The direction of movement of the gate is perpendicular to the direction of the fluid. The rising stem gate valve can only be fully open and fully closed, and cannot be adjusted and throttled. The gate has two sealing faces. The two sealing faces of the most common mode gate valves form a wedge shape. The wedge angle varies with valve parameters, usually 5°, and 2°52' when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its processability and compensate for the deviation of the sealing surface angle during the machining process. The board is called a resilient shutter. The types of open gate valves can be divided into wedge gate gate valves and parallel gate gate valves according to the sealing surface configuration. The wedge gate gate valves can be further divided into: single gate type, double gate type and elastic gate type; parallel gate type gate valves. Can be divided into single gate type and double gate type. According to the thread position of the valve stem, it can be divided into two types: open gate valve and dark gate valve. When the open gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the shutter is pressed against the valve seat on the other side only by the medium pressure to ensure the sealing of the sealing surface, which is self-sealing. Most of the gate valves are forced to seal, that is, when the valve is closed, the external force is forced to press the gate to the valve seat to ensure the sealing of the sealing surface.

 

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