Manual PTFE Half-Lining Wafer Butterfly Valve
Pressure Range: 1.6Mpa
Flanged Connection: DIN250-PN10/16-ANSI 150LB
Nominal Diameter: DN40-DN200
Application: Petroleum, ChemicalIndustry, Food, Medicine, Energy etc.
Medium Temp.: -79-+180 centigrade (it depends on sealing material)
Dimension: GB/T 12221 J1 Series
ISO 5752 Short Series 20
BS 5155 Water Short/Medium
DIN 3202 Part 3 Series K1
Top Flange: ISO 5211
Body: Gray Cast Iron, Ductile Cast Iron
Disc: Ductile Cast Iron, Stainless Steel, Brass Alloy ect.
Stem: Stainless Steel
Seat: PTFE, PFA, F46, UHMWPE ect.
Operation: Handle, Worm wheel, Electrical, Pneumatic, Hydraulic Actuator, Electro-hydraulic Linkage
Leakage Level: RPTEA EA 12266-2 (Zero Leak)
Standard and Price
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Valve Standard
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Comply with ISO 5752/BS 5155/BS EN 593/MSS SP-67/API 609
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Pressure Temprature and Rating
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Working Pressure
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16bar/25bar
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Testing Pressure
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Shell: 24bar/37.5bar
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Seal: 17.6bar/27.5bar
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Working Temperature
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-20 °C to 110 °C EPDM Seat
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-10 °C to 80 °C NBR Seat
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Suitable Media
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Water, Oil & Gas
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Material Specification
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Part
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Material
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EN Spec.
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Body
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Cast Iron
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A126 Class B
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Ductile Iron
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A536 Gr. 65-45-12
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Disc
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Ductile Iron
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A536 Gr. 65-45-12
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Bronze
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B148 C95400
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Stainless Steel 304
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A351 CF-8
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Stainless Steel 316
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A351 CF-8M
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Shaft
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Stainless Steel 410
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A276 S 410 00
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Stainless Steel 431
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A276 S 431 00
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Seat Ring
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EPDM / NBR
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O-Ring
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EPDM / NBR
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Bushing
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PTFE
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Bronze
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B62 C83600
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