FACV

DN150 to DN1200

• Non slam design in all sizes up to DN1200 without the need for dampers or levers/weights
• Double or triple doors designs used for sizes DN500 and above

Duvalco Check Valve Non-Slam design is achieved through a carefully balanced relationship between door weight and angle, providing minimal maintenance and avoiding damage to other pipework components. The absence of weights or dampers minimizes the risk of shaft damage and leakage. All sizes are available with metal seating of the door. Sizes up to DN300 are also available with the door encapsulated in EPDM or NBR
rubber.

General product specifications

• Overall design generally in accordance to BS 5153 / EN12334, EN1074-1, EN1074-3
• Flange connections to PN10, PN16, ANSI Class 150
• Working pressure standard – up to PN16
• Other type of connection on request

WCV

Duvalco wafer type check valve offers shorter face to face body construction, lighter and more compact then swing check valve. Wafer check valve opening and closing operation is controlled by robust rust proof spring for ease of installation and overall cost reduction

General product specifications

• Overall design generally in accordance to API6D, JB/T8937
• Face to face generally in accordance to JB/T8937 or ISO 5752 series 16
• Flange connections to PN10, PN16, PN25 and ANSI 150
• Working pressure standard – up to PN25
• DN50-DN800