Flange Knife Gate Valve

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Set set

Supply Capability:: 10000 Sets Per Month set/month

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‍Packaging & Delivery
Packaging Details: packing with plywood case
Delivery Detail: 3-4weeks

Specifications of Flange knife Gate valve

SIZE: CAST: 2"~ 60" FORGED: 1/2"~ 2"

Pressure: 150LB-2500LB

End: BW/SW/RF/RTJ

Manual/Electric/gear

Features:

1.Nominal pressure:1.6MPa;

2.Working medium: Water, Non-causticity liquid & Saturated steam(≤0.6Mpa);

3.Working temperature: -20°c≤t≤100°c;

4.Parallel pipe thread to ISO228/1,BSP,NPT,etc.

Q: The difference between cut-off valve and gate valve: The working principle is different. The stop valve is an upward stem type, and the handwheel rotates and rises with the stem. Valve is hand wheel rotation, stem upward movement. Flow is not the same, the gate valve requires full open, the cut-off valve is not the same. The gate valve has no inlet and outlet direction requirements, and the cut-off valve has the required inlet and outlet!Gate valve and stop valve are shut-off valve, is the most common two valves.From the exterior, the gate valve is shorter than the cut-off valve, especially the bar valve needs a higher height space. Valve sealing surface has a certain degree of self sealing capacity, its spool depends on the media pressure tight contact with the valve seat sealing surface, to achieve tight leakage. Wedge gate valve spool angle is generally 3~6 degrees, when forced to shut down excessive or temperature changes of the valve core is easy to die. Therefore, high temperature and high pressure wedge gate valve, in the structure have taken certain measures to prevent spool stuck. The valve in the opening and closing valve and valve seat sealing surface contact and mutual friction is always so easy to wear sealing surface, especially in close off the valve, the valve before and after the great pressure, sealing surface wear is more serious.

Q: What is the difference between the model z81x-16q and z81x-16c of the groove gate valve?: Not 16qIs 16p, the former body is stainless steel, and the latter body is carbon steel

Q: What do you mean by gate valve type RVHX-0150-10 and Z45X-16Q?: Z45x-16q, Z means gate valve, 4 means flange connection, 5 refers to dark rod gate valve, X means rubber seal, 16 refers to nominal pressure 1.6MpaRVHX means manual gate valve, 150 refers to the caliber of DN150, and 10 indicates nominal pressure of 1.0MPa

Q: What is the difference between cut-off valve and gate valve?: Simply put, the cut-off valve is one-way, only into, do not give up, the valve is two-way

Q: Why does the fire hydrant box in the air defense area need to be added with gate valves?: 3, protective valve should be used for stainless steel or copper gate valve or cut-off valve;4, air defense enclosure structure, the distance from the proximal end of the valve should not be greater than 200mm. Valve should have obvious signs of opening and closing.

Q: What are the structural differences between parallel and wedge valves?: The advantages of dual gate plate is sealed and angle precision low temperature is not easy to make the wedge gate, the abrasion of the sealing surface and shim.The disadvantage is that the structure is complex, easy to stick in the dry medium, mainly the upper and lower baffles. After years of corrosion, the gate is easy to fall off. Although the single gate is sealed and angle accuracy requirements are relatively high, difficult processing and temperature change may make the gate wedge and other shortcomings, but has the advantages of simple structure, reliable use, especially to the flexible gate, can produce the micro elastic deformation to compensate for the deviation between the sealing surface angle processing, which is widely used at present.For more information about valves, please keep an eye on the valve knowledge section.

Q: What kind of valve is gate valve? Is it different from the cut-off valve?: Gate valve and the role of the cut-off valve, are playing a role in isolation. The difference is that the gate valve and the cut-off valve are constructed differently. Fluid from the gate valve flow and flow direction is straight, there is no change in direction, but in the cut-off valve is from the bottom of the valve flow into the flow from the upper part of the spool.

Q: What's the difference between a soft seal gate valve and a hard sealed gate valve?: The difference is that the form of the gate seal surface is different.General gate valves are generally leaking, easy to rust and other phenomena. Soft sealing gate valve (elastic seat sealing gate valve), gate material for cast iron lining rubber, overcome the shortcomings of the general gate valve, such as poor sealing, elastic fatigue, easy to rust, etc.. Soft sealing gate valve is a new product of the traditional gate valve.

Q: What's the meaning of the gate valve model z41x 16Q?: Gate valve (Z) flange connection (4) wedge type single gate (1) rubber soft seal (X) -16 pressure) (Q)

Q: What are the types and product categories of knife gate valves?: Knife gate valve drive: manual, electric, pneumatic, hydraulic, bevel gear, electro hydraulic and pneumatic drive.Knife gate shape: bright rod, dark rod two kindsKnife gate valve material: cast iron, cast steel, carbon steel, stainless steel, fluorine and so onKnife gate valve seal: hard sealing, soft sealing, single-sided sealing, double sided sealing and other material seal.

We provide Gate Valves, Ball Valves, Check Valves, Butterfly Valves, Globe Valves, and Plug Valves under API, ASME, ANSI, DIN, BS, and JIS standards, and specialize in researching and producing various non-standard valves. Having made great achievements, we will never stop our steps for improvement. Our personnel warmly welcome clients from both at home and abroad to negotiate with us for business relationship.

1. Manufacturer Overview

Location	Zhejiang,China (Mainland)
Year Established	2008
Annual Output Value	US$10 Million - US$50 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe Central America Northern Europe South Asia Domestic Market
Company Certifications	ISO 9001:2000;API6D;TS

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	SHANGHAI,NINGBO
Export Percentage	71% - 80%
No.of Employees in Trade Department	21-50 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	5,000-10,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range	High and/or Average