Welded Gate Valves

Description
Welded gate valves, also known as weld end gate valves or welded sluice valves, can be fully opened and closed. They are primarily used to permit or prevent the flow of liquids, but typically, they should not be used for regulating flow, unless they are specifically designed for that purpose. If used to regulate flow, the sealing surface will be damaged because of a relatively high fluid velocity.

Application
Due to their ability to cut through liquids, welded gate valves are often used in such pipelines as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, energy system, etc.

Advantages
1. The opening torque of welded gate valves is small, leading a long service life.
2. Valve body of weld end gate valves is cast in precision, having high corrosion resistance.
3. Surface of welded sluice valve is processed twice, so it is smooth and fine in appearance.
4. Valve clacks are machined by CNC.
5. Welded gate valves are convenient and fast to maintain.
6. Our weld end gate valves are API 6D / CE certified.

Features
1. Minimum flow restriction.
2. Easy to open and close.
3. Convenient to install.
4. Very low frequency of water hammer phenomenon.
5. Higher price than check valves.

Maintenance
1. Hand wheel, handle, and transmission structure of welded gate valves cannot be hoisted up and down. And collision is prohibited.
2. If weld end gate valves have by-pass valve, the by-pass valve should be open first to balance the pressure of entrance and exit.
3. Please install those welded sluice valves with transmission structure according to operating manual.
4. If welded gate valves are used frequently, please lubricate them at least once per month.

Attention
1. Before installing weld end gate valves, please check valve body, sealing surface and other parts to avoid any dirt attachment.
2. Bolts at any connection joint should be fastened.
3. Check the packing part to ensure excellent sealing performance and ensure welded gate valves to open flexibly.
4. Customers should attach much importance on valve type, connection size and flowing fluids when choosing gate valves.
5. When installing, some space should be left for weld end gate valves to actuate.
6. The connection of actuating device should be strictly conformed to circuit diagram.
7. Welded gate valves should be maintained regularly.

Payment, Package and Transportation
1) Payment such as T/T, D/P, D/A, L/C is accepted.
2) Welded gate valves are packed in standard wooden boxes.
3) We deliver our weld end gate valves by railway, sea, or airplane.