butterfly valve DN40-DN1200Standard Structure: Butterfly Pressure: Low Pressure

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Standard or Nonstandard: Standard Structure: Butterfly Pressure: Low Pressure Power: Manual Material: Casting Temperature of Media: Normal Temperature Media: Water Port Size: DN40-DN1200 Place of Origin: China (Mainland) Wafer type: butterfly valve Packaging & Delivery

Packaging Details: Plactic bag+Paper cover+Plywood cases 

Delivery Detail: Within 20 days 

Specifications

Wafer type lined butterfly valve 

1.Design standard:ISO,BS,API 

2.DN40-DN1200 

3.PN10/PN16/PN25 

4.Center lined disc 



Wafer type lined butterfly valve 


 


 


Technical Data


DN40-DN1200mm PN1.0-1.6MPa


General Design:ISO 5752 / BS 5155 / API 609


Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel


Seat: EPDM, PTFE, NBR,Viton


Stem: Stainless Steel, Steel,


Disc: Ductile Iron with Nickel Coating,Ductile Iron with Nylon Coating, Stainless Stee 304/316l, Alu-Bronze,Duplex steel


Flange Connection:DIN,ANSI,JIS,BS


 


Product Features


Wafer type flanged body style fit between FF or RF flanges


PTFE bushing ensure the maximum shaft support and centralized alignment


360°polished disc assures positive on-off


Hard-Backed Cartridge seat or Edge-Boot seat


The pin,spline or square connection are all available


Universal ISO 5211 mounting pad.


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Q:What is the national standard for clip butterfly valves?
GB/T 12238-2008 "flange and clip connection elastic seal butterfly valve"GB/T 26144-2010 flanged and clip on steel lined fluoroplastic butterfly valvesJB/T 8527-1997 "metal sealed butterfly valve"
Q:DN80 flange butterfly valve, DN80 flange butterfly valve DN80, flange butterfly valve DN80 what is the difference?
No, what's the difference?. It's not all the same.Flange connectionDN80 caliber butterfly valve. What's the difference?. Model and pressure. Materials are not ~!
Q:Is the pressure test of the centerline butterfly valve checked or checked?
GB/T12238-2008 flange and clip connection elastic seal butterfly valveRules: butterfly valve must be carried out by factory inspection and testing, inspection qualified before leaving the factory.CJ/T 261-2007 "butterfly valves for water supply and drainage."Rules: each product shall be inspected by factory and quality inspection department in accordance with table 4. After inspection, the product certificate shall be attached to the factory before leaving the factory.
Q:Butterfly valve D41W-1, 41, W, 1, respectively, what does that mean?
This butterfly valve in our factory called butterfly, 4 represents the connection of the flange connection flange is French, 41 in 1 on behalf of butterfly valve, W represents the body seal, is C that is actually the correct type of cast steel, should be D41W-1C. Suitable for ventilation, smoke, and these media.
Q:Seat Leon Cupra 1.8T Mk1. Is my seat fitted with a dump valve as standard.?
every turbo will have a dump valve(waste gate) to regulate the boost to the engine Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere. Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards). A blowoff valve is a more elegant solution to this problem by allowing the turbo to freewheel when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration. Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, but they are very different solutions to the same problem.
Q:Especially butterfly valve
Butterfly valve is fully open to fully closed is usually less than 90 degrees, the opening refers to the butterfly plate rotation angle;Linear closing should be the locator is linear, if the potentiometer is 0-10 euro, corresponding to 0-90 degrees, 500 Europe, opening 45 degrees;
Q:What are the major disadvantages of butterfly valves?
Rubber elastomer in the butterfly valve will cause tear, wear, aging, perforation and even shedding in continuous use. The traditional heat curing process is difficult to adapt to the needs of on-site repair. It is time-consuming and laborious to use special equipment when repairing, and it consumes a lot of heat and electricity. Nowadays, polymer composite method is gradually used instead of traditional method.
Q:Types of butterfly valves
Butterfly valve structure categories: central to clip butterfly valve, central flange butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve, eccentric butterfly valve, soft sealing butterfly valve, hard sealing butterfly valveButterfly drive categories: handle, worm gear, electric, pneumatic, electromagnetic, electromagnetic, hydraulic, electro hydraulic, hydraulic, hydraulic, pneumatic
Q:Why use special flanges for butterfly valves?
Butterfly valve to use special flange, butterfly valve itself is because of the structure of the decision, the butterfly valve to clip type connection, this pair of clamps is a special flange.Also known as butterfly valve, control valve has a simple structure, can be used for low pressure pipeline valve switching control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve, the valve can be used to control the flow of air, water, steam steam, all kinds of corrosive medium, mud, oil, metals and radioactive liquid media and other types of fluid. On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.
Q:The difference between the directly buried gate and the flange valve and butterfly valve
Buried gate also called buried gate valve, valve can be directly buried underground, built without manhole, reduce road excavation area; small well maintained road and beautiful room can reduce the difficulty of construction, reduce project cost. The directly buried soft sealing gate valve is divided into two types: telescopic type and fine fixing type, wherein, the telescopic type is divided into metal type and plastic type. In the process of construction, the telescopic type can be adjusted arbitrarily according to the distance between the buried depth of the valve and the ground, and the micro adjustment can be adjusted on the spot. The directly buried gate valve has the advantages of long-term use, no leakage, no maintenance, etc., and can effectively avoid other people switching the valve and stealing the manhole cover at will.Flange gate valve is connected to the flange gate valve, this connection is the most common way.

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