API/ASME 150lb/300lb/600lb Rising Stem Stainless Steel CF8m/CF8 Flanged Gate Valve

A stainless steel flange gate valve is a type of valve used in piping systems to control the flow of fluid. It consists of a gate (a flat or wedge-shaped disc) that slides into the flow stream to either completely stop or allow the flow through the pipe.

The term "stainless steel" indicates that the valve is constructed primarily or entirely from stainless steel, a corrosion-resistant alloy suitable for various applications, especially those involving liquids or gases. Stainless steel offers excellent durability and resistance to corrosion, making it suitable for use in environments where corrosion could be a concern.

The term "flange" refers to the method of connection used to install the valve in the piping system. Flanges are flat, typically circular components with holes for bolts. Flanged connections allow for easy installation and removal of valves and other piping components, as they can be bolted together securely.

In summary, a stainless steel flange gate valve is a robust, corrosion-resistant valve with a gate mechanism, designed for use in pipelines where precise control over fluid flow is necessary, and where resistance to corrosion is important.

Features:
 

1. Full port
2. Outside screw and yoke
3. Bolted bonnet
4. Flexible wedge, fully guided integrated seats
5. Rising stem and non-rising hand-wheel
6. Tongue and groove between body and bonnet

Applicable Standards:
 

1. Gate valves API 600
2. Steel valves ANSI B16.34
3. Face to face ANSI B16.10
4. End flanges ANSI B16.5
5. Butt weld ends ANSI B16.25
6. Inspection and test API 598

Technical Descriptions: 
Construction
The construction of steel gate valves of MSA corresponds to API 600 and BS 1414. Gate valves are yoke, flange or welded with unnarrow flow rate and with flexible or fixed wedge. Bodies, covers and yokes are cast. Wedges could be forged or cast. All wedges are guided. Sealing seats are bolted or welded into the body. Overlays in seats depends on Trim. Valves have rising non-rotative spindle and bolted joint of body-cover. Standard spindle threads are ACME2G-LH.
Operation with a handwheel. On the basis of mutual agreement, the gate valves can be operated by angle transmission, electric actuator or pneumatic actuator. For easier control the gate valve with larger diameters are equipped with bearings. Sealing material is pressed rings from expanded graphite and graphite plaited rings. The properties of gate valve packing meet the requirements of the directive Clean Air Act, Amendment from 1990. The gate valves can be also equipped with: drainage, venting, relief from inter-space and bypasses, on the special customer´s request.
Design Dimension
The dimensions of standard design are stated in the table below.
Material design
 The gate valves are supplied in different material variants.
Assembly
The yoke gate valve can be assembled in any position into the pipeline.
Testing
The gate valves are subjected to pressure tests according to the standard API 598: on strength and tightness, tightness of backseat, closure tightness by low pressure, closure tightness by high pressure (on request).

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2. We offer free sample if interest before orders.
3. Technology renovation, process improvement, structure optimization and quality improvement.
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7. Third party inspection on customer requirement.

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