This butterfly valve is suitable on system such as petroleum, chemical industry, foodstuff, medicine, pipe making, water and electricity, shipping, plumbing, the smelting and sources of energy etc the pipe route. Can regard on gas, liquid, semifluid as well as solid powder pipes and power lines and the container of many kinds of corrosiveness and non-corrosiveness adjusts and dams a river the equipment use. Especially extensively being suitable in high layer of building fire protection system reaches other to show in the pipes and power lines system of valve switch state

Technical Data

• Nominal DiameterDN (mm): 50(2″)~250(10″)
• Nominal PressurePN (MPa): 1.0~1.6
• Testing Pressure (MPa): Shell: 1.5~2.4 Sealing: 1.1~1.76
• Suitable Mediums: Fresh water, Sewage, Sea Water, Air, Steam, Food, Medicine, etc.
• Working Temperature: -15~+150°C
• Microswitch capacity: AC 220V 1A DC 30V 0.5A

Features

1. Small in size and light in weight. Easy instillation and maintenance. It can be mounted wherever needed.
2. Simple and compact construction, quick 90 degrees on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line. Excellent regulation performance.
5. Long service life. Standing the test of tens of thousands opening/closing operations.
6. Bubbles-tight sealing with no leakage under the pressure test.
7. Wide selection of materials, applicable for various medium.
8. Gate valve, globe valve, cock, glue pipe valve and diaphragm valve altogether, especially reaching and need show in the pipes and power lines system of valve switch state at high layer of building fire protection system, all available this valve is replaced.

Work Principle

1. This signal butterfly valve is by the pot wheel worm-drive device drive taming axle and the butterfly board revolving realizes opening and close and controls the volume of flow.
2. Revolving the worm gear worm-drive device handwheel, making butterfly board achieve the purpose opening and close and adjusts the volume of flow, that the handwheel clockwise revolves closes down for the valve.
3. The worm gear worm-drive device chest is set up the microswitch inside the body and is had two kinds of versions:

• At the gearing chest has out inside the body to and the pass to two microswitch. Two switches move respectively at the valve standard-sized sheet with when cutting out, the pilot lamp power supply in the connection control room “valve leaves” “valve pass”, made accurately shows the valve switch state..
• In the gearing chest body. The signal is closed down by the export valve to the microswitch action when the butterfly board is by 0~40° seat, and another can be sended out the valve and opening the signal to often closing the contact during 40~90° seat. Can adjust the cam that the pressure was touched the microswitch, and show the different seats of butterfly board place.

Dimension