Product model: Z41W
Nominal Path: NPS 2"~NPS 48" DN50~DN1200
Pressure range: CL150-CL2500 PN10-PN420
Working Temperature: - 29 ~600 ~
Main material: stainless steel
Applications: tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, power, ship, metallurgy, energy system, etc.

Design code

Design criteria: API 600, API 6D, ASME B16.34

Structure Length: ASME B16.10, API6D

Connection standards: ASME B16.5, ASME B16.47

Pressure test: API 598

Pressure-temperature grade: ASME B16.34

Product characteristics

1. The gate has two sealing surfaces. The wedge shape and wedge angle of the sealing surface vary with the valve parameters, usually 5 degrees.

2. The sealing principle of wedge gate valve is the close combination of two sealing surfaces on wedge gate plate and two sealing surfaces on valve body when wedged in, so as to achieve sealing performance.

3. Wedge gate valves can be divided into open-rod gate valves (lifting-rod gate valves) and hidden-rod gate valves (rotary-rod gate valves) according to the different opening and closing modes of the gate driven by the stem.

4. Wedge gate valves can be divided into elastic gate valves and rigid gate valves according to their different structure forms.

5. The body is cast-moulded, the body and cover are bolted, the middle flange is sealed with winding gaskets, and the metal ring can be used when customers have special requirements.

6. The channel is smooth and the flow coefficient is small. The sealing surface is less eroded and eroded by the medium.

7. The sealing surface is made of alloy steel or cemented carbide with good wear resistance and abrasion resistance.

8. Using flexible graphite filler, the seal is reliable and the operation is light and flexible.

9. The flow direction of the medium is unrestricted, without disturbance or pressure reduction.