Wafer Type Double Half Shaft Butterfly Valve Without Pin
Wafer butterfly valve product description:
1, small, lightweight, easy installation and maintenance, and can be mounted in any position.
2, the structure is simple, compact, 90 ° operation open and close quickly.
3, operating torque, energy saving.
4, to be completely sealed, zero gas leak test.
5, choose different materials, applicable for various media.
6, flow characteristics tend to a straight line, regulated performance.
7, the number of trials open and close as many as tens of thousands of times, and long life.
8, where the use of gate valves, globe valves, cocks, valves and diaphragm valves, hose pipes, can be replaced with the valve, when ordering the valve with auxiliary pipe supplier can add (please specify in the contract).
1. butterfly valve overview
1. the center of the linear structure
2. valve plate and shaft to rely on accurate Double "D" type flat wedge connection and drive, no need to screw / pin, higher Cv value, reliability and more convenient disassembly.
3. valve shaft top and bottom of a pair of bearings prevents shaft ran relaxed and stable operating torque.
4. seat sealing wide-brimmed design to achieve high sealing performance.
5.seat distorted in the installation and use of offset and wear to rely on the strengthening of the seat backrest has been a good improvement.
6. all valves at the top of the platform are in line with the requirements of ISO521, can be directly installed in accordance with ISO5211 requirements of electric, pneumatic and other actuators.
7. installation easy without additional mounting flange gasket.
2. butterfly valve main features
(1) Nominal diameter: DN50 ~ DN300mm
(2) Nominal pressure: 1.0/1.6Mpa
(3)Seal test: 1.1PN
(4)Shell test: 1.5PN
(5) the length of the structure: to GB12221-89
(6) Flange standard: GB9113-88
(7)Operating temperature: NBR -10 °C ~ 80 °C
EPDM -20 °C ~ 120 °C
PTEE -20 °C ~ 150 °C
3. butterfly valve Quality controll:
1. Mateiral test
2. Machinging test
3. Thread Go & Non-Go test
4. 100% Air Hydaulic Pressure Test
5. surface checking
6. All above test as per ISO system regulation
4.butterfly valve design parameters
gray iron, ductile iron, carbon steel, stainless steel
A)Cast hole. Flange connection meet ANSI 125/150# DIN PN10/16 BS4504 PN10/16 in the meanwhile.
B)Soft seat. Replaceable. Increase of service life.
C)Double half shaft without pin.
D) Square and short neck. Easy to stick scutcheon and cost saving.
These products are widely used in water source projects, urban water supply
And drainage, sewage treatment, electric power, petroleum, petrochemical,
Heat supply, shipbuilding, medicine and metallurgy industries. Valves used for regulating or cutting off liquids in pipelines.
Liquids available include water, sewage, sea water, air, foodstuff and oil.
1) Working temperature: -10 - +150° C
2) Suitable for handles (DN50 - 300), gear operators, electric and pneumatic
Double Flange Butterfly Valve:
Design StandardAPI 609
End flangeEN1092, ANSI 125/150#, DIN2501
Face to faceEN 558-1, BS5155, ISO 5752
Top flangeISO 5211
BodyDuctile iron, Stainless steel, WCB
DiscDuctile iron, CF8, CF8M, C95400, C95500
StemSS416, SS420, SS431, SS316
SeatNBR, EPDM, WRAS-EPDM
Suitale mediumSewage, Sea water, Air, Foodstuff and Oil
These products are widely used in industries such as water source projects, urban water supply and drainage, sewage treatment, electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries.
Water, sewage, sea water, air, foodstuff, oil etc.
-10° C~150° C
Suitalbe for handles(dn50~300), gear operators, electric and pneumatic control actrators.
We can produce butterfly valves, check valves, gate valves and so on with the materials of ductile iron, carbon steel, stainless steel to order. Our products are designed and manufactured in accordance with the standards of GB, ASME, ANSI, API, BS, DIN, JIS etc.
Lug Type Butterfly Valve Without Pin
The products are widely used in industries such as water projects, urban water supply & drainage, sewage treatment, eletric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy. Equipment used in regulating or cutting off medium in pipeline.
We company have other valves: gate valve, check valve, ball valve, butterfly valve, safety valve, globe valve, plug valve, etc....
Welcome to inquiry! our valves
XIAMEN KEMUS VALVE CO.,LTD.