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Fujian Province Datong Reciprocity Valve Co.,Ltd is a leading China ductile iron wafer concentric butterfly valve, ductile iron butterfly valve manufacturer and supplier, and as a professional company, we have productive factory to offer you good price and service.
DUCTILE IRON WAFER CONCENTRIC BUTTERFLY VALVE
1. Size: DN50-500.
2. Body: Cast iron/Ductile iron/Stainless steel
3. Disc: Ductile iron/Stainless steel.
4. Tenth more highly, seal more reliably for seat.
5. Easy and fast installation, making cost minimized
Concentric butterfly valve
1. Double axis butterfly valve designed to comply with MSS-SP-67, BS 5155 and API609. Compatible with GB, DIN, BS, ANSI125/150 flanges. Face to face according to ISO5752.
2. The seat of double axis butterfly valve is designed in to without back, the toque-and-groove seat is lower torque and replaceable.
3. There is O-ring caste on the seal surface of the seat, negates need for flange gaskets.
4. Available in wafer type and lug type.
5. Available with handles, manual gear operators and electric or pneumatic actuators.
STANDARDS
1. DESIGN AND MANUFACTURE: |
API 609 |
2. FACE TO FACE DIMENSIONS: |
API 609 |
3.FLANGE ENDS DIMENSIONS: NPS1/2”~24” |
ASME B16.5 |
4. PRESSURE-TEMPEARTURE RATINGS: |
ASME B16.34 |
5. PRESSURE: |
CLASS 150 |
6.SIZE: |
NPS 2″~16″ |
MATERIAL LIST
ITEM |
PART NAME |
STANDARD |
LOW TEMPERATURE |
STAINLESS STEEL |
1 |
BODY |
D.I |
A352 LCC |
A351 CF8M |
2 |
BUSHING |
PTFE |
PTFE |
PTFE |
3 |
SEAT |
PTFE/RUBBER |
PTFE/RUBBER |
PTFE/RUBBER |
4 |
PIN |
A276 410 |
A276 304 |
A276 316 |
5 |
STEM |
A182 F6 |
A182 F304 |
A182 F316 |
6 |
DISC |
D.I |
A352 LCC |
A351 CF8M |
7 |
GEAR OPERATOR |
ASSEMBLY |
||
GEAR OPERATOR, ELECTRICAL OPERATOR, PENUMATIC OPERATOR, HYDRAULIC OPERATOR ETC.ARE AVALIABLE
NOTE: OTHER METERIALS ARE AVALIABLE UPON REQUEST
APPLICATION
Those kinds of the wafer type concentric butterfly valve are widely used in petro oil, electric power, low temperature resistant, corrosion resistant.
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