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JIS 20K daily standard flange globe valve

JIS 20K daily standard flange globe valve

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JIS 20K flange globe valve/globe valve specification JIS 20K flange globe valve can also be referred to as a shut-off valve. JIS 20K is the class name for Japanese standard valves. The globe valve is mainly driven by the rotation of the handwheel, and the valve stem drives the valve seat to rise and open, and fall and close.

JIS 20K日标法兰截止阀

JIS 20K flange globe valve structure diagram Product structure and details China JIS 20K globe valve manufacturer The following diagram shows the globe valve produced by our factory. The product is made by precision casting. The design standards and structural dimensions comply with JIS standards.

Body material: CHPH2, SCS13, SCS14 Nuclear power source: 50A-500A Design standard: JIS B2071 Face to face: JIS B2002 Flange standard: JIS B2220 Inspection and testing: JIS B2003

SCPH2 SCS13/SCS14 JIS 20K globe valves We are a manufacturer of JIS standard globe valves located in China. We can provide customers with products made of various materials, including stainless steel, cast steel, forged steel, etc. We can also improve product performance through various treatments, such as low-temperature treatment, multi-layer epoxy resin coating treatment, oil-free degreasing treatment, etc

This product belongs to our Globe valve range. For sizing, pressure rating, material and actuator selection, see our valve technical resources.

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Tekron & Trekre

Stop valve

01 Why are stop valves suitable for throttling, while gate valves are not?
The core concept can be summed up in one sentence: The stop valve is like a faucet, allowing you to control the flow of water precisely by adjusting the opening degree; the gate valve is like a door, either fully open or fully closed; when it is partially open or closed, the water flow will "scrape" and damage the sealing surface of the gate plate.
The figure above has already shown the structural comparison between the two. The flow channel of the stop valve on the left is S-shaped (the fluid changes direction, which is itself a throttling principle), while the flow channel of the gate valve on the right is straight-through (the fluid does not turn, and the gate plate is suspended in the middle and is subject to erosion and vibration).
Selection rule: Use a stop valve for throttling and regulating; use a gate valve for full opening and full closure.
02 How to evaluate valve manufacturers?
The product's execution standards, pressure ratings and material ranges, valve body and internal component traceability, pressure and sealing test documents, flow direction and installation requirements, similar medium experience, and after-sales responsibilities should all be verified. The supplier should also provide a written confirmation of the selection based on the medium, temperature, pressure difference, diameter and regulation requirements.
03 What are the characteristics of stop valves and in which situations are they applicable?
The stop valve achieves cutting or regulation by the movement of the valve disc along the axis of the valve seat. It usually has good throttling characteristics, but the flow channel turns will result in higher pressure loss compared to the straight-through type valve. It is commonly used in steam, process media and pipelines requiring certain flow regulation; the specific structure, materials and flow direction should be determined according to the working conditions.