API 6D Flat Gate Valve

Price: The price is changing because of material cost and exchange rate. Please give me your contact information, I will update the newest price to you.

1. Only hand wheel drive, no need to match other driving components, low cost, widely used.

2. It has the advantages of simple and compact structure, reasonable design, reliable sealing, light and flexible operation, small size, smooth channel, low resistance, easy installation and easy disassembly.

3. When the valve is fully opened, the flow resistance coefficient is very small, and the valve will eliminate the function of the valve disc and the dirt on the sealing surface every time the valve is opened and closed.

4. The packing is made of flexible graphite ring and graphite packing, reliable sealing, light and flexible operation.

5. When the valve is closed, the precision of the gate valve without a diversion hole is not high

6. It is widely used in oil and water steam pipelines such as petrochemical industry and thermal power plants to connect or cut off the intermediate quality of pipelines. The sealing surface of the opening and closing device has compact structure and reasonable design.

• Our service tenet is customer first, service first. We will provide more accurate and efficient manufacturing and service according to customer requirements.
• We have a professional QC team to ensure that the products in API 6D Flat Gate Valve meet your needs and do better.
• Check raw materials before production at API 6D Flat Gate Valve.
• Spot checks are carried out during the processing of API 6D Flat Gate Valve.
• 100% inspection of API 6D Flat Gate Valve before shipment.
• Provide a one-year service for the products provided by API 6D Flat Gate Valve to create value for customers.

• We have complete production technology and management.
• As a manufacturer our price is also good.

To be packed in suitable wooden cases as per client's

Q: Does the force applied to the handwheel need to be large?

A: No, the force applied to the handwheel will be ≤360N.

Q: API6D US standard gate valve easy torque transfer structure?

A: The handwheel transmits the torque to the valve stem through the valve stem nut. The valve stem is forged. In order to reduce the loss of force in the transfer process, the valve stem nut is made of high nickel ductile iron A439GR.D2 or copper alloy (high nickel ductile iron has a certain self-lubricating property), and the hardness is about HB50 than the valve stem.

Q: API6D US standard gate valve design reasonable anti-leakage stuffing box?

A: The valve packing is a combination of flexible graphite and plaited graphite, which has good sealing performance and certain strength. Packing gland and packing sleeve are separate design, spherical combination, can automatically maintain concentricity, so that the valve stem in the up and down movement without scratching. The packing press sleeve is provided with steps to prevent falling into the packing box. The threaded end of the stem is always above the packing to prevent movement of the packing. This packing box ensures that the valve does not leak outside and meets environmental requirements.

Q: What is the effect of the presence of the sealing oil film on the sealing performance?

A: The presence of a sealing oil film between the sealing surfaces has a significant effect on its tightness. When there is a sealing oil film on the surface, the hydrophilicity between the contact surfaces is destroyed, so that a large pressure difference is required to enable the medium to pass through the capillary pores. In addition, a dense sealing oil film on the surface can block the channel travel of the medium and improve the tightness of the connection. When using oil film sealing, it should be noted that when the oil film is reduced during the working process, the thickness of the oil film should be restored. The grease used in the valve is not allowed to dissolve in the medium, nor should it evaporate, harden, or undergo other chemical changes.

Q: What is the effect of the rigidity and structural characteristics of the closure on the sealing performance?

A: The rigidity and structural impact of the closure is due to the elastic action of the part. Because the closing part of the closed-circuit valve is not absolutely rigid, but has a certain elasticity, under the pressure related to the medium, the size is changed, which also causes the interaction of the sealing surface force to change. In order to compensate for the effect of these changes on the sealing of the closure, it is best to make the sealing surface have small rigidity, that is, the elastic deformation is as large as possible.

Hot Tags: api 6d flat gate valve, China api 6d flat gate valve, Manual Slab Gate Valve, ISO Slab Gate Valve, Electric Flat Gate Valve, External Thread Slab Gate Valve, Gray Cast Iron Flat Gate Valve, Wafer Flat Gate Valve