DIN3352 F4 RUBBER Gate Valve PN16 System 1

DIN3352 F4 RUBBER Gate Valve PN16

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 PCS

Supply Capability:: 1000 PCS/month

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Specifications

DIN3352 F4 RUBBER Gate Valve PN16:
1.cast steel flange type valve expoxy coating non toxic for water
2.ISO9001&14001approved

DIN3352 F4 RUBBER Gate Valve PN16

Product Name:18-strainer2
Standard Parameters
Body Shape:Wafer Type, Flange Type
Nominal Diameter:3
Flange Standard:ANSI B16.5,ANSI B16.47
Material:A216WCB,BS EN10025(Carbon Steel)

Product Performance

1. Supply pressure: up to 2500LBS.

2. NACE material is avaliable and various material options.

Product Characteristics

1. Excellent sealing performance.
2. Auto-core function of sealing.

3. High corrosion resistance of gasket.
4. Simple seal parts replacement.

5. Preventing the shift of the valve plate when high temperature.
6. Special elliptical shape of the sealing parts, effectively improve the performance of the valve seal.
7. Flange Standard: ISO5211 standard.
8. Excellent sealing performance.

Q:Fire protection gate valve from the wall how many distance there is no regulation?: 1 meters away from the wall, leaving the maintenance and replacement distance

Q:Notes on flat gate valves: Use, maintenance, maintenance and precautions1. valve before leaving the factory have made strength and sealing test, the use of all connections should maintain the initial state.2. this series of valve operating handwheel is marked with open and close rotary direction, and the upper part of rod is equipped with open and close height gauge for regulating indication.3. when the valve and pipeline welding, the valve should be opened, appropriate to protect the neck with moisture, minimize heat conduction, to prevent damage to the sealing packing parts.4. when the valve is closed, the lever shall not be used. When the gate is closed to the top, the handwheel shall be turned 1/2 so that the gate is in a floating state.5. in the use of the valve should be regularly to the valve cap injection grease joint into the quantitative grease.6., the valve in use, such as vulnerable parts and leakage, should be replaced in time.7., the valve in the overhaul process, the cavity should be cleaned, the assembly should be added to the transmission parts of grease.8. valve storage during the shutdown, the gate should be in the closed position, long-term storage should be placed in ventilated dry place, regular inspection and maintenance.

Q:Why? God, can you explain to me in detail why?: The exit of the general pump is the first soft connection (shock absorber), followed by the check valve, and then the partition valve (such as butterfly valve, gate valve, cut-off valve, etc.), this is not the final answer.The question is interesting, and no corresponding information has been found in the relevant standards. We have also discussed the related issues, but differences of opinion is relatively large, the advantages of 1, first installed check valve installed after the valve or butterfly valve, check valve, can be protected, especially in a parallel pump, when the pump does not start, another pump starts when the impact force is gate valve or butterfly valve bear, disadvantages: gate valve or check valve who will protect? There have been a case of butterfly valve is broken. 2, first installed gate valve or butterfly valve installed after the check valve, advantages: can protect the butterfly valve or gate valve, the impact on the check valve to bear. Disadvantages: check valve who will protect, check valve by pressure difference switch, if the high pressure high pressure pipe, pump, if the flow is not stable, so check valve will repeatedly switch, will affect the check valve life. Personal opinion: check valve, check valve performance now have changed, many are using the slow closing check valve, so the impact force is two aspects to bear, because exports are not fully open the valve or butterfly valve, so you can put in check after the gate valve or butterfly valve valve. If not the slow closing check valve installed in the valve or the best after the butterfly.

Q:What does gate valve DN80-PN16-QT450 mean?: DN80 means that the nominal diameter of the gate valve is 80mm, and PN16 is the nominal pressure of the gate valve is 16Mpa. Q quick form T cast iron, 450 flanged connection single gate valve.

Q:What is the difference between an elastic gate valve and a rigid gate?: Brief introduction: the valve gate valve is a gate opening and closing parts, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle. Gate has two sealing surface, the most commonly used mode gate valve of the two sealing surface to form a wedge, wedge angle with valve parameters vary, usually 50, medium temperature is not high when 2 degrees 52'.Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce micro deformation of ram, in order to improve its process of deviation, make up the sealing surface angle in the process, the gate is called the flexible gate.

Q:How about the model of stainless steel gate valve?: Stainless steel gate valve is divided into 304 stainless steel gate valve, 316 stainless steel gate valve, 321 stainless steel gate valve. The expression is: Z41H-16P.

Q:How big valves and fittings need flange installation, such as gate valves, DN50, DN80 and the like?.: According to user requirements, DN15 also has flanges, in general, DN50 or more are flanges

Q:What are the features and uses of the gate valve?: 1) advantages: sealing performance than the cut-off valve, the fluid resistance is small, open and close more effort, full sealing surface by the erosion of media, media flows from the restrictions, with double flow, small structure length, wide application range. 2) disadvantages: high size, open need a certain space, opening and closing time is long, in the opening and closing, the sealing surface is easy to erode and scratch, and the two sealing pairs bring difficulties to the processing and maintenance.3) use: gate valve is generally used in the caliber of DN15-1800mm pipes and equipment, and its dosage is great, mainly cutting off function, not allowed to throttle.

Q:About fire valve is gate valve or butterfly valve problems?: Disease is generally in accordance with the design requirements, regardless of the butterfly or tie hair to meet the requirements, are two-way valve.

Q:Function of signal butterfly valve and gate valve: The signal butterfly valve applies to petroleum, chemical, food, medicine, papermaking, water and electricity, ships, water supply and drainage, smelting, energy and other system pipelines. It can be used as regulating and throttling devices in a variety of corrosive, non corrosive gases, liquids, semi fluids, and solid powder pipelines and containers. It is widely used in high buildings, fire protection systems and other piping systems that need to display valve switching status.

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