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The DelVal Series 57 has been developed with extensive application, design and manufacturing expertise.  These products are produced by employing modern manufacturing practices under a robust quality assurance system.  These practices ensure consistent product quality and dependable performance.
Series 56 and 57 valves image
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Item:

Type

Size

Body Material

Disc

Seat

Stem

Operation

Series 57 Lug Body Resilient Seat (High Flow) Butterfly Valve N/A Resilient seated high flow disc N/A 50-600 mm/ 2"-24" N/A Cast iron, ductile iron (Wafer and lug type) N/A Ductile iron (Nylon/aroxy coated) CF8/CF8M N/A Buna N/ EPDM N/A SS 410/316/CS+zinc plated N/A Lever/gearbox/pneumatic/electric actuator
Series 56 Wafer Body Resilient Seat (High Flow) Butterfly Valve N/A Resilient seated high flow disc N/A 50-600 mm/ 2"-24" N/A Cast iron, ductile iron (Wafer and lug type) N/A Ductile iron (Nylon/aroxy coated) CF8/CF8M N/A Buna N/ EPDM N/A SS 410/316/CS+zinc plated N/A Lever/gearbox/pneumatic/electric actuator
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