butterfly valveEPDM StandardSize: DN40-DN1200 Place of Origin: China (Mainland)

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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:Gate valve and butterfly valve which is installed when there is a direction?
There is no direction when installing the valve. The butterfly valve has an eccentric butterfly valve which is in the direction of installation
Q:How do you draw the butterfly valve in the engineering drawing?
Butterfly valve there are many kinds of painting, according to the design institute out of the icon, below we together to understand the icon, which has the butterfly drawing.
Q:Buried extension butterfly valve is buried directly, or need to repair the valve well?
The establishment of a repair valve well, easy to repair, usually hydrogen long rod butterfly valve installed in the well. But if the quality of buying long stem butterfly valve, it can also be buried directly, not easy to bad
Q:Butterfly valve, two-way pressure and one-way pressure what is the difference?
Popular, one point one pressure side, a double-sided pressure.
Q:butterfly valves d7a1x5
D71x-1.6? Or D371X-1.6, do you need butterfly valves for production or butterfly valves? The question perplexed us all.
Q:What are single eccentric and double eccentric in butterfly valves? What's the difference, please explain in detail?
Eccentric butterfly valve is divided into single eccentric butterfly valve, double eccentric butterfly valve, three eccentric butterfly valve, variable eccentric butterfly valve.Single eccentric butterfly valve: extrusion problems, address concentric butterfly valve and valve seat of the resulting in a single eccentric butterfly valve, the structural characteristics of the stem axis deviated from the disc center, so that the butterfly is no longer a rotary bottom plate, axial dispersion, reduce the excessive squeezing and the lower end of the seat of the butterfly board.
Q:What is the difference between the installation and function of a butterfly valve and butterfly valve?
Therefore, the fully open position of the valve is determined by the position of the gate. Some gate valve, stem nut is located on the gate, the handwheel rotates to drive the stem to rotate, and make the gate lift, this kind of valve is called rotary bar gate valve, or call dark rod gate valve. The type of gate width, sealing surface configuration can be divided into wedge gate valve and parallel gate valve, wedge gate type valve can be divided into: single gate type, dual gate plate and the flexible gate type; parallel gate type valve can be divided into single and dual gate gate plate. According to the thread position of the valve stem, can be divided into two kinds of open rod gate valve and dark rod gate valve. Valve installation and maintenance should pay attention to the following: hand wheel, handle and transmission mechanism are not allowed for lifting, and is strictly prohibited. Double gate valve should be installed vertically, that is, the valve stem is in a vertical position, and the handwheel is at the top. The gate valve with bypass valve shall be opened before opening to balance the pressure difference between inlet and outlet and reduce the opening force. The gate valve with drive mechanism is installed according to the instruction of the product instruction. If the valve is constantly switched on, lubricate it at least once a month. The valve has the advantages of small fluid resistance, the sealing surface by the erosion of small and medium Chong brush. Opening and closing is more labor-saving. Medium flow direction is unrestricted, no disturbance, no pressure reduction. The utility model has the advantages of simple shape, short structural length, good manufacturing technique and wide application range. Valve faults between the sealing surface can lead to erosion and abrasion, maintenance more difficult. Larger size, open need a certain space, long opening and closing time. Complex structure.
Q:How to calculate the size of the manual butterfly valve?
[1] type code, transmission mode, connection form, structure form, sealing surface material or lining material, nominal pressure, valve body material, this is the most basic arrangement way now D341X-16C. [2]: butterfly valve 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 air water, steam, and all kinds of corrosive media, mud, oil, metals and radioactive liquid media and other types of fluid flow. 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:Butterfly valve switch direction respectively?
If there is no arrow on the handwheel, the indicator on the turbine has been damaged, you can put your ear on the wall of the pipe, turn the handwheel, and through the sound of the pipe medium to determine the direction of the switch.
Q:What are the functions and uses of butterfly valves?
Industrial butterfly valve features, capable of high temperature, applicable pressure range is higher, the valve nominal diameter is large, the valve made of carbon steel, the valve plate sealing ring using metal rings instead of rubber rings. Large high temperature butterfly valve welded by steel plate, mainly used for high temperature smoke duct and gas pipe.Construction: mainly composed of valve body, valve stem, disc and sealing ring. The valve body is cylindrical and has short axial length and is internally provided with a plate.

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