China Butterfly Valve -Lug Type DN50 Butterfly Valve

Author:     Published time:2017-12-07 16:14     Reading times:1313    

China Butterfly Valve-lug butterfly valve

Lug butterfly valve, the drive mode optional manual, worm gear, pneumatic, electric, connection options flange, on the folder, the structure can choose single eccentric, centerline, double eccentric, three eccentric, seal structure can choose soft seal, Hard seal, pressure range 10Bar / 16Bar, nominal diameterDN40-DN300, the material can be cast steel, stainless steel.

China Butterfly Valve-Lug Butterfly Valve Description:

Wafer lug butterfly butterfly valve installed in the pipe diameter direction. In the butterfly valve body cylindrical channel, the disc-shaped disc rotates about the axis, the rotation angle of 0 ° -90 °, rotated to 90 °, the valve was fully open state.


China Butterfly Valve-Lug Butterfly Structure:

Clip-on butterfly valve is the use of double-headed bolts to connect the valve between the two pipe flanges, its simple structure, small size, light weight, only a few components. And just turn 90 ° to quickly open and close, easy to operate, while the valve has good fluid control features. When the butterfly valve is fully open, the thickness of the disc is the only resistance to the flow of the medium through the valve body, so the pressure drop across the valve is small and therefore has good flow control characteristics. Butterfly valve bombs and metal seals sealed two types. Flexible sealing valves, seals can be embedded in the body or attached to the butterfly plate around.

China Butterfly Valves - Lug Butterfly Valve Scope of application:


China Butterfly Valves not only in the oil, gas, chemicals, water treatment and other general industry has been widely used, but also used in thermal power station cooling water system.

China Butterfly Valves is used for gas pipeline in sulfuric acid industry: entrance and exit of furnace blower, relay fan inlet and outlet, electric demisting series and union valve, S02 main blower inlet and outlet, converter regulation, preheater inlet and outlet adjustment and cut-off gas usage.

China Butterfly Valves is the preferred brand of valve for sulfur-burning sulfuric acid plant. It is considered by the majority of users as: sealing performance, light operation, corrosion resistance, high temperature resistance, easy operation, Flexible, the use of safe and reliable butterfly valve, has been widely promoted.

Lug butterfly valve is also widely used in chemical, petrochemical, metallurgy, pharmaceutical, food and other industries in the SO2, steam, air, gas, ammonia, CO2 gas, oil, water, salt water, lye, sea water, nitric acid, hydrochloric acid , Sulfuric acid, phosphoric acid and other media as the regulation and closure devices used.

China Butterfly Valves -Lug Type DN50 Butterfly Valve

Nominal Diameter:         DN40–DN300   

Nominal Pressure:         10Bar/16Bar   

Design Standard:           BS EN593/BS5155/API609/DIN3354   

FTF Dimension:              ISO 5752-20/BS EN558-20/API609   

Flange Connection:       ASME B16.1 Class125/ASME B16.5 CL150/ASME B16.47 CL150/

                                         DIN 2501 PN10-16/EN1092 PN10-16/JIS10K  

Inspection and Test:      EN12266-1/API 598/ISO5208/JIS B2003   

Material List:

1. Body:

    Cast Iron                       ASTM A126 CL.B/ DIN1691 GG25   

    Ductile Iron                    ASTM A536 60-40-18/ DIN1693 GGG40   

    Carbon  Steel                ASTM A216 WCB   

    Stainless  Steel             ASTM A351 CF8/CF8M   

    Bronze AL-Bronze         ASTM B148 C954   

2. Disc:

    Ductile Iron                    ASTM A536 60-40-18/ DIN1693 GGG40   

    Carbon Steel                 ASTM A216 WCB   

    Stainless Steel               ASTM A351 CF8/CF8M   

    Bronze AL-Bronze         ASTM B148 C954   

    Coating                         Nickelplate/Epoxy/EPDM/VITON/Nylon   

3. Stem:

    Stainless Steel              ASTM A182 304/316/410   

    Alloy                              Monel K500   

4. Seat:

    Elastomer                     Working temperature   

    EPDM                           -45℃-135℃   

    NBR                              -10℃-80℃   

    VITON                          -20℃-150℃   

    PTFE                            -10℃-150℃   

5. Bushing:



6. Pin:

    Stainless Steel              ASTM A182 304/316/410   

    Alloy                              Monel K500   

Structure and Feature:

1. Bi-directional tightness.   

2. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.   

3. Simple and compact construction, quick 90 degree on-off operation.   

4. Minimized operating torque, energy saving.   

5. Flow curve tending to straight line. Excellent regulation performance.   

6. Long service life. Standing the test of tens of thousands opening/closing operations.   

7. Bubbles-tight sealing with no leakage under the pressure test.   

8. Wide selection of materials, applicable for various medium.

China Butterfly Valves all the pictures in the article is original .If you want to copy it ,please ark the derivation!