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ANSI Class 150 American standard flange globe valve

ANSI Class 150 American standard flange globe valve

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Product parameters

ANSI Class 150 American standard flange globe valve, also known as switch valve, is usually made of stainless steel or carbon steel and is mostly operated by manual handwheel. The larger ones can also be operated with bevel gears, saving the force required for switching switches.

Chinese 150 level flange globe valve manufacturer ANSI Class 150美标法兰截止阀

We are a manufacturer of stainless steel American standard globe valves located in China. We have a factory and high-quality globe valves

The valve body is barrel shaped or streamlined, with a beautiful appearance and a straight through flow channel shape, resulting in low fluid resistance. The closing part (valve disc) and valve seat are sealed with a conical surface, which has low closing force, erosion resistance, and reliable sealing. The valve seat can be a replaceable valve seat that can be combined with the sealing surface material of the closing element to meet various working conditions and extend its service life.

150 grade flange globe valve material: stainless steel 304, 316, carbon steel WCB size: 2 "-20" Design standard: BS1873 JIS B2071-2081 Structural length: ANSI B16.10, JISB2002 Piping flange: ANSI B16.5, JIS B2212-2214 Welding end size: ANSI B16.25 Inspection and testing: API598, JIS B2003 Transmission mode: manual, electric, bevel gear, pneumatic

Class 150 globe valve/Class 150 globe valve/Class 150 globe valve. The opening and closing components of the globe valve are plug shaped valve discs, with a flat or conical sealing top. The valve disc moves linearly along the centerline of the valve seat. The movement forms of valve stem include lifting rod type and rotating rod type, which can be used to control the flow media of various fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactivity. Therefore, this type of cut-off valve is very suitable for cut-off or regulating and throttling. Due to the short opening and closing stroke of the valve stem and its highly reliable shut-off function, as well as the fact that the variation of the valve seat is proportional to the stroke of the valve disc, this type of valve is very suitable for flow regulation.

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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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.