introduction
The parallel gate valve is a sliding valve with parallel gate-shaped closing members. It consists of core components such as a valve body, precision-machined gate (single disc or double disc), valve stem, and bolted valve cover. Due to its unique design, this valve has been widely used in industries such as petroleum, chemical, electric power, metallurgy, etc., for precise control of fluid flow direction, flow and pressure, and reliable isolation of equipment and pipelines.
feature
Excellent sealing performance
Thanks to its precision-machined gate and valve seat, as well as the unique double gate design. The sealing surface of the Parallel Gate Valve is directly welded to the valve body or gate to ensure that the valve fits tightly when closed. The double gate design provides double sealing protection, which can effectively prevent medium leakage in high-pressure environments of up to several thousand psi and high-temperature environments of several hundred degrees Celsius.
Efficient flow control
The full-bore design of the Parallel gate valve keeps the inner diameter of the valve consistent with the inner diameter of the pipeline, thereby reducing the pressure drop and vortex of the fluid at the valve. This design provides an unobstructed fluid channel when the valve is open, achieving efficient flow control. At the same pressure, its flow coefficient is as high as tens of thousands, which is much higher than other types of valves.
Structural stability
The parallel gate valve adopts a bolted bonnet design, and the bonnet is tightly connected to the valve body through high-strength bolts and nuts. This design augments both the overall durability of the valve and its structural stability. At the same time, the valve adopts reinforced structures such as a wedge gate and cross-connection structure inside, which further improves the impact resistance and service life of the valve. When subjected to pressures up to several thousand psi, the Parallel gate valve can still maintain stable performance to ensure the safe operation of the system.
Easy to operate and maintain
Parallel Gate Valve is designed with full consideration of the user's operational convenience.
1. The spring-loaded disc automatic alignment function reduces the torque requirements of the actuator, making operation easier and more labor-saving.
2. The two-piece self-lubricating gland eliminates the problem of warping and reduces friction and wear.
3. The integrally cast bracket block to position the bracket plate assembly ensures reliable installation and stable operation of the valve.
4. The valve adopts a replaceable double-disc seal design, which is not only convenient for maintenance and replacement of seals, but also improves the reliability and service life of the valve.
This design allows users to maintain the valve without having to disassemble the entire valve, greatly reducing maintenance costs and time.
Specification
1. Size:2"~48"(DN 50~DN 1200)
2. Pressure: Class 150~Class 2500
3. End connection: Welded, Flanged
Main materials
Casting Steel:WCB,WCC,WC6,WC9,LCB,LCC,CF8,CF3,CF8M,CF3M,CF8C,4A,5A,6A,CN7M,CW6MC,
CW12MW,CU5MCuC,C5,C12,M35-1
Special Alloy Steel: Inconel, Hastelloy, Monel
Standard
1. Design Standard: API 6D, ASME B16.34
2. Flange END:ASME B16.5,ASME B16.47
3. Butt ends:ASME B16.25
4. Face To Face: MSS-SP-81, ASME B16.10
5. Test and Inspection: MSS-SP-81, MSS-SP-61, API 598
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