Chief Features

Full port,Outside screw and yoke(OS&Y)

Bolted bonnet

Flexible wedge,full guided

Structure improve on API

Rising Stem and non-rising handwheel

Each valve is shell, seat and backseat pressure tested per industry standard

According to requirement the valve can meets NACE standard and fire test certification

main feature

1. The valve seat adopts a sealing ring seal and a floating valve seat structure that applies preload force to make the valve inlet and outlet sealed in both directions. The opening and closing torque of this structure is only 1/3 of that of ordinary valves, making it easy to open and close the valve.

2. The valve seat is made of stainless steel (or cobalt-chromium-tungsten alloy) inlaid or surfacing on the sealing surface, which has double sealing of metal and metal-to-metal. The sealing surface can also remove dirt from the gate plate.

3. For metal-to-metal sealing valves, the outside of the valve body is equipped with a grease injection structure. The grease enters the valve sealing surface through the grease injector and the valve seat, making the valve achieve zero leakage.

4. The gate plate of the valve with a diversion hole always matches the sealing surface whether it is fully open or fully closed. The sealing surface is protected from direct erosion by the medium, thereby extending the service life.

5. When the valve is fully open, the channel is smooth and straight, the flow resistance coefficient is extremely small, there is no pressure loss, and the pipeline can be cleaned through the hair ball.

6. This valve adopts a packing structure with self-sealing ability, which does not require frequent adjustment. It is extremely light to open and close, and the sealing performance is reliable. The stuffing box is equipped with an auxiliary sealing grease injection structure, and the sealing performance is absolutely reliable, truly achieving zero leakage and solving the problem. This eliminates the problem that the general valve packing is most prone to leakage.

7. When the valve is closed, it can automatically remove the high pressure in the inner cavity to ensure safe use.

8. Fully enclosed structure with good protective performance and can adapt to full load working requirements.

9. The valve is equipped with an indicator rod or observation window to indicate the opening and closing of the valve.

product specifications

Design specification:?GB/T19672 API 6D

Structure length:?GB/T 19672??? API 6D

Connection standard:?JB/T79?????? ANSI B16.5

Pressure test:?JB/T 9092 ANSI B16.34 AIP 598

Product Range

Main material: carbon steel, stainless steel, etc.

Nominal diameter:?DN?25——DN1100

Pressure range:?1.6MPa——25MPa

Applicable temperature:?-46-550℃

Operation mode: manual, pneumatic, electric, etc.

Applicable medium: Double gate flat gate valves are suitable for natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other transportation pipelines, vent systems, and steam storage devices, and are used as opening and closing equipment. Long distance pipelines suitable for natural gas extraction and purification.

main feature

1. The valve seat adopts an O-ring seal and a floating valve seat structure with preload force, so that the inlet and outlet of the flat gate valve are sealed in both directions; and the opening and closing torque of this structure is only 1/2 that of ordinary valves, it can easily open and close the valve

2. When fully open, the channel is smooth and straight, with extremely small flow resistance coefficient and no pressure loss. The pipeline can be cleaned by using hair balls.

3. Use a self-sealing valve The packing structure does not require frequent adjustment, is extremely light to open and close, and has reliable sealing performance. The stuffing box is equipped with an auxiliary sealing grease injection into the structure, the sealing performance is absolutely reliable, and truly achieves zero leakage; it solves the problem of leakage at the packing of general valves.

4. When the flat gate valve is closed, it can automatically remove the high pressure in the inner cavity, ensuring safe use.

5. Fully enclosed structure, protective performance Good, can adapt to all-weather requirements.

product specifications

Design specification: GB/T19672? API 6D

Structure length:?GB/T 19672??? API 6D

Connection standard:?JB/T79?????? ANSI B16.5

Pressure test: JB/T 9092? ? ANSI B16.34? ?AIP 598

Product Range

Main material: carbon steel, stainless steel, etc.

Nominal diameter:?DN?25——DN1100

Pressure range:?1.6MPa——25MPa

Applicable temperature:?-46-550℃

Operation mode: manual, pneumatic, electric, etc.

Applicable media: water, steam, oil, etc.

Chief Features

The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance;

The sealing surface is welded with Co-based cemented carbide, which is wear-resistant, corrosion resistant, good friction resistance and long service life;

The?stem?is?quenched?and?tempered,?and?its?surface?is?treated?by?nitriding?treatment,?thus it has good corrosion resistant and friction resistant.

It has double seal capability,thus it’s more reliable;

The stem show the position of lift,thus it is more visualized.