Metal Seated Fire Protection Butterfly Valves PN10/16/125lbs/150lbs/JIS 5K/JIS10K

Metal Seated Fire Protection Butterfly Valves PN10/16/125lbs/150lbs/JIS 5K/JIS10K ​

Fire Protection Butterfly Valves INTRODUCTION:

Butterfly valve, also known as flip valve, is a simple structure of regulating valve, can be used for low-pressure pipeline medium switch control of the butterfly valve is the closing piece (disc or butterfly plate) for the disc, revolving around the valve shaft to open and close a valve.

Fire Protection Butterfly ValvesSpecification

Fire Protection Butterfly Valves FEATURES

⊙ Metal seated, good seal

⊙ Low weight

⊙ Easy to install and maintain

⊙ Open-close 90° more smoothly

Fire Protection Butterfly Valves APPLICABLE STANDARDS

1. Design according : API 609

2. Test standard according: JIS B2003

3. Connect flange standard according: JIS B2212

4. Face to face standard according: JIS B2002

5. Item Name of part Material Spec

6. Operation:

6.1. The two pipe flange should be smooth.

6.2. Put the butterfly valve in the pipe line, fixed the orientation hole first.

7. Delivery:

When delivery or store the butterfly valve, should keep in dry and cool environment.

8. Note:

8.1. Pipe flange should same as the butterfly valve flange.

8.2. Check the valve before installed, the environment should correspond to the butterfly valve

specification.

8.3. Before open butterfly valve, checking the disc without dirt.

8.4. The disc must be shut off place when installed.

8.5. Adjusting the pipe connect before installed.

8.6. The connect flange should be parallel.

8.7. After installed, the pressure test disc should be open place.

8.8. If the butterfly can not natural open or close, please kindly check it careful, can not strike, tamp or

use extension lever.

8.9. When maintenance or operation, must check the stem, lever, gear box or actuator have correctly

connect. Otherwise the stem will be push by pipe pressure.

9. The malfunction and resolving:

10. Maintenance

Open the worm box cover and add some butter per two months.

Check the seal, packing and flange, if leak, please maintain ASAP.

Specifications:

Size: DN50 - 3000
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa

Materials
Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel

Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,

Titanium Steel, Copper Alloy etc

Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),

Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),

Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.

Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13

A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe.
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe.
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow,
therefore a pressure drop is always induced in the flow regardless of valve position.

Wafer Rubber Seated Butterfly Valves