Spherical disc butterfly valve is developed combined with the advantage of the butterfly valve and segment ball valve . The special disc butterfly valve can be used at inlet and outlet of the water pump,piping network system,recovery system,high water tank,sewage system and any other back flow preventing position to shut off or control the pipeline.
Features
1.Designed with bidirectional sealing structure,the installation of the spherical disc butterfly valve will not be restricted by the direction of the fluid.
2.Since the metal sealed spherical disc butterfly valve is offered with self-sealing device,reliable sealing performance can be realized under the pressure from medium.
3.When the valve is installed on the reversed direction of the fluid ,powerful specific pressure of sealing can be obtained as valve seat and fluid formed annual contacting area.
4.The valve has long service life due to wear compensation.
5.The unique rotational structure ,as well as the sphere-conical sealing surface of the valve seat,makes for the self-cleaning function.The solid particles will be crushed when the bidirectional sphercial disc butterfly valve is opened or closed.
Technical Specifications
Size �?2�??~40�?? DN50~DN3000
Pressure�?Class 150~Class 3 00 PN1.0~PN4.0
Body material �?WCB, CF8, CF8M, CF3, CF3M,etc.
Sealing material�?Hard alloy
Connection type�?Flange or weld
Operating type�?Worm gear ,electric or pneumatic
Applications
Municipal engineering
Circulating water system
Water treatment system
Fire extinguisher system
Main Dimensions
Flange Type:
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Cast Iron Butterfly Valve BS 5155 Pressure Rating : Class-125 Material : Cast Iron Description : Wafer Type, With Lugs, Centric Disc Disc : Ductile Iron / SS 304 / SS 316 Seat : Moulded EPDM, BUNA-N, Neoprene, Viton Ends : Lugged Operator : Lever, Gear, Pneumatic, Electric Item Code : CI000029 Size : 40mm Notes : Available Valve Size : 40mm to 400mm
Cast Iron Butterfly Valve IS 13095, BS 5155 Pressure Rating : PN-1.6 Material : Cast Iron / Ductile Iron Description : Wafer Type Disc : Ductile Iron / SS 304 / SS 316 Seat : Moulded EPDM, BUNA-N, Neoprene, Viton Ends : Wafer Type Operator : Lever, Gear, Pneumatic, Electric Item Code : CI000091 Size : 40mm Notes : Available Valve Size PN-16 40mm to 400mm PN-25 40mm to 400mm
Cast Steel Butterfly Valve Pressure Rating : PN-10 Material : Cast Steel (WCB) Description : Wafer type, Centric Disc Body Seat : Moulded EPDM, BUNA-A, Neoprene, Viton Ends : Wafer, Lugged Operator : Lever, Gear, Electric, Pneumatic Item Code : CCS00014 Size : 50mm Notes : Available Valve Size : PN-10 40mm to 400mm PN-16 40mm to 400mm PN-20 40mm to 400mm Material : CF8, CF8M, CF3, CF3M etc.
Cast Iron Motorised Butterfly Valve IS 13095, BS 5155 Pressure Rating : PN-1.6 Material : Cast Iron Description : Wafer Type, Centric Disc Disc : Ductile Iron / Stainless Steel Ends : Wafer Type, Lugged, Flanged Operator : Electric Actuator Item Code : CI00091E Size : 40mm Notes : Available Valve Size : 40mm to 400mm
Features and Benefits Vulcanized EPDM seat Streamlined SS304 disc, corrosion resistant ISO5211 standard top flange, suit for different operations. Both gear and lever operated are available. Electrostatically applied Akzo Nobel epoxy powder internally and externally. Applicable Standards Design standard: BS5155, EN593, API609 Flange standard: BS EN1092-2 Top flange standard: ISO5211 Face to face standard: BS EN558-1 Pressure test standard: BS EN12266-1, API598 Technical Data Nominal diameter: DN50~DN150 (2"~6") Nominal pressure: PN16 Working temperature: -5C ~ +85 C Sealing test:1.1PN Shell test:1.5PN Suitable for: Water, ethylene glycol, non correction medium, etc.
Pneumatic Actuator Mounted Size: 8" (2"- 8") Material: SS304, SS316 Available in wafer type body pattern, these general purpose soft seated valves come with a fully rubber-lined single piece body with a centric disc construction. Universal design of butterfly valves makes them suitable to be fitted between pipe flanges of almost all known flange standards.
Technical Data Nominal diameter: DN200~DN600 (8"~24") Nominal pressure: PN16 Working temperature: -5C ~ +85C Sealing test:1.1PN Shell test:1.5PN Suitable for: Water, ethylene glycol, non correction medium, etc.
From 40 mm to 300 mm dia butterfly valves, plug valves.
A butterfly valve is a shut-off valve with a relatively simple construction. In closed position, the disc blocks the valve bore while in open position, the disc is turned to allow flow. A quarter turn takes the valve from fully open to fully closed position, or opposite, and thus the butterfly valve allows for quick opening and closure. Butterfly valves can be used for a broad range of applications within water supply, wastewater treatment, fire protection and gas supply, in the chemical and oil industries, in fuel handling systems, power generation etc. Some of the advantages for this type of valve are the simple construction not taking up too much space, and the light weight and lower cost compared to other valve designs. The valves can be operated by handles, gears or actuators according to any specific need.
