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Area of application
Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems
Technical Parameters /Properties of Wafer type Butterfly valve
TYPE: Single-Flange Wafer
SIZE & CONNECTIONS: DN50 to D1200
MEDIUM: Air, Inert Gas, Oil, Seawater, Waste water, Water
MATERIALS: Cast Iron / Ductile Iron/ Carbon Steel / Stainless
Steel / Alu Bronze
PRESSURE RATING: PN10, PN16, JIS5K, JIS10K
TEMPERATURE: -30°C to 200°C
SEAT/LINING: Replaceable Liner / Bonded Liner
NBR/EPDM/VITON, PTFE/PFA lining
CERTIFICATES & APPROVALS: DNV-GL, Lloyds, DNV, ABS, BV Type Approval
3.1 & 3.2 Cert (on request)
Standards
Design and Manufacture Conform to EN 593, API609, JIS
Flange dimensions Conform to EN 1092-2 PN10, PN16, JIS5K, JIS10K
Face to Face dimensions Conform to EN558 series
Topwork’s dimensions Conform to ISO5211
Testing Conform to API598、EN12266-1
Material of Parts
PART NAME Material
BODY ASTM A536 65-45-12/ASTM A126 B
EN-JL 1040 (GG-25)
EN-JS 1030 (GGG-40)
EN-JS 1049 (GGG 40.3)
Stainless steel (1.4408)
Alu-Bronze
DISC / PLATE DI+NI,CF8/CF8M,C954/C958
EN-JS 1030 (GGG-40)
Stainless steel (1.4408)
SHAFT / STEM SS431/SS420/SS410/SS304
SEAT / LINING NBR /EPDM /VITON /PTFE /PFA
TAPER PINS SS416/SS316
BUSHING BRASS/PTFE
O-RING NBR/EPDM/VITON
KEY STEEL
Actuation
Hand lever
Worm-gear/hand-wheel
Electric-actuator
Pneumatic-actuator
Hydraulic-actuator
Wafer type butterfly valve features
Simple structure and easy operation
Easy installation and good sealing
Long service life and high reliability
Good interchangeability of parts and cost saving
Wafer type butterfly valve with concentric design
Using backless structure, Rubber fusion bonded on valve body
Replaceable, resilient seat
Streamlined disc, one-piece stem
Approved and registered by VdS, DVGW
Related types of butterfly valves:
We have other types of butterfly valves: Lug type butterfly valve, U flange butterfly valve, double flange butterfly valve, fluorine lined PTFE butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valves used in Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with Nominal Diameter of DN50 to DN1200, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, BV, API, ABS, CCS. Standards: EN 593, API609, API6D,
1 EUR
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