Class150 - 3000 API ANSI Standard Gas Flat Gate Valve for Natural Fuel Gas

Product Description

  KZ47WF-150LB.C American standard gas flat gate valve is a sliding valve with parallel gates as the closing part. The closing part can be a single gate or a double gate with a spreading mechanism in between. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or the floating valve seat. If it is a double gate flat gate valve, the expansion mechanism of the two gates can supplement this pressing force. Flat gate valves are suitable for natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other transportation pipelines, venting systems and steam storage devices, as opening and closing equipment. This product is suitable for long-distance pipelines for natural gas extraction and purification. Flat gate valve caliber range: DN25~1200 Pressure range: 0.6MPa~45MPa 150Lb~3000Lb; flat gate valve with diversion hole is used for pipelines that require ball pigging, and no diversion hole is used for pipelines that do not require ball pigging . The products produced by Kaiyuan are of reliable quality, reasonable price and perfect after-sales service. The product has low flow resistance and can be directly used for pigging when installed on the pipeline. Since the gate slides on the two valve seat surfaces, the flat gate valve fluid can be suitable for the medium with suspended particles and the sealing of the flat gate valve. The face is actually positioned automatically. The seat sealing surface will not be damaged by thermal deformation of the valve body.

Product Features
1. The valve seat adopts an O-ring seal and a floating seat structure that exerts a pre-tightening force to seal the inlet and outlet of the flat gate valve in both directions; and the opening and closing torque of this structure is only 1/2 of that of ordinary valves, which can achieve easy opening and closing. Close the valve.
2. When fully opened, the channel is smooth and straight, the flow resistance coefficient is very small, and there is no pressure loss. The pipeline can be cleaned by the hair ball.
3. The packing structure with self-sealing capability is adopted, without frequent adjustment, the opening and closing are extremely light, and the sealing performance is reliable. There is an auxiliary sealing grease injection structure at the stuffing box. The sealing performance is absolutely reliable and achieves zero leakage; it solves the general purpose The most prone to leakage of valve packing.
4. When the flat gate valve is closed, the high pressure in the inner cavity can be automatically removed to ensure safe use.
5. Fully enclosed structure, good protection performance, can adapt to all-weather requirements.
6. The sealing structure of the valve seat should be elastic and pre-tightened, and the upstream and downstream sealing seats are sealed at the same time. The valve seat and the seal are always face-to-face sealing.
7. The valve seat has a self-cleaning function, and is not directly washed by air flow during the opening or closing of the valve. The valve seat should be made of lubricated, non-wearing material.
8. The failure of the valve actuator will not affect other parts of the valve. Repair and replacement work can be carried out without removing the valve.
9. For metal-to-metal sealed valves, there is a grease injection structure on the outside of the valve body. The grease enters the valve sealing surface through the grease injector and valve seat, so that the valve reaches zero leakage.
10. The valve seat adopts the sealing surface inlaid with PTFE, which has a double seal of PTFE to metal and metal to metal, and the PTFE sealing surface simultaneously removes dirt on the gate.
11. The gate and valve seat are treated with special technology, spray-welded hard alloy, wear-resistant PTFE, and realize double sealing. It can also be greased to assist the double protection of the seal, the seal is more reliable and the service life is longer.
12. The gate of the valve with diversion hole, whether it is fully open or fully closed, is always consistent with the sealing surface, and the sealing surface is protected from direct erosion by the medium, thereby prolonging the service life.
13. The valve is equipped with an indicator rod or observation window to indicate the opening and closing of the valve.

Applicable Occasions
1. (Class150~900/PN1.0~16.0MPa, working temperature -29~121ºC) oil and natural gas transmission pipeline. The flat gate valve with diversion hole is also easy to clean the pipeline.
2. Transportation pipeline and storage equipment of refined oil.
3. Oil and natural gas extraction wellhead devices, that is, valves for Christmas trees.
4. Pipes with suspended particles.
5. City gas transmission pipeline.
6. Tap water works.


Selection Principle
1. For oil and natural gas pipelines, flat gate valves with single or double gates are used. If you need to clean the pipeline, use single or double gate open-rod flat gate valve with diversion holes.
2. For the transportation pipeline and storage equipment of the refined oil, use a flat gate valve with a single gate or a double gate without diversion holes.
3. For oil and natural gas exploitation wellhead devices, single-gate or double-gate flat gate valves with dark rod floating valve seats and diversion holes are used, most of which are API 6A standards, and the pressure levels are API2000, API3000, API5000, API10000, API15000 , API20000.
4. For pipelines with suspended particulate media, use knife-shaped plate gate valves.
5. For the city gas pipeline, use single gate or double gate soft-seal open-rod flat gate valve.
6. For urban tap water projects, use single or double ram plate gate valves without diversion holes.

FAQ:

Q: Are you manufacture or trading company? 
A: We are manufacture and our factory is in in Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province.

Q: What is your products' MOQ?
A: 10pcs.

Q: Can you provide the sample for free?
A: Yes, we can provide the sample for free, but you need bear the delivery cost.

Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems.

Q:Can we print our logo on your products?
A: Yes, just let me know if you need.