DK VALVE
Dual plate check valve
Retainer-less design with no external body penetrations eliminating the possibility of outside leakage
Light weight and compact design reduce pipe supports, simplifies piping, easier, less costly installation
Spring-loaded, double disc design has low cracking pressure and provides high responsiveness.
Efficient and positive sealing under most flow and pressure conditions.
Valve closes before flow reversal at zero velocity and minimizes water hammer effect.
Low pressure drop and reduced energy loss irrespective of pressure rating
Long life and trouble-free opreation.
Standard Specifications
DESIGN
▪ API 6D
▪ API 594
FACE-TO-FACE
▪ API 6D
▪ API 594
FLANGE STANDARD
▪ ASME B 16.5
▪ BS 4504 / EN 1092-1
▪ JIS B2220
▪ Others on request
PRESSURE RATING
▪ ASME B 16.34
▪ Class 150/300/600/900/1500
NOMINAL DIAMETER
▪ 2” to 60”
▪ DN 50 to 1500
TESTING
▪ API 6D
▪ API 594
Applicable Materials
Carbon Steel | A105, A216 WCB / WCC / WC6 / WC9 |
Low Temp. Carbon Steel | A350 LF2, A352 LCB / LCC |
Austenitic Stainless Steel | A182 F304 / F316, A351 CF8 / CF8M / CF3 / CF3M |
Duplex Stainless Steel | A182 F51 / F53 / F55, A995 4A / 5A / 6A |
Special Alloy | Inconel® 625(UNS N06625), 254SMO®(UNS S31254) Monel® K400 / 500 (UNS N04400 / N05500) |