Double Disc Check Valves Model No. CV-Q-12

Ductile iron/cast iron duo plate double disc check valves with DNV GL approved , ANSI 150LBS. Temperature: -40℃-+125℃

Quick Detail

Double disc spring loaded Check Valve

Product Range:

Body connection Type: wafer, Lug, double flanged

Available Body Material: Cast Iron GG25, Ductile iron GGG40, GGG50, rubber lined body

Available Disc Material: Ductile iron, Bronze, SS304 SS316,Duplex SS2205 SDSS 2507

Optional Seat Ring: EPDM, NBR, PTFE, VITON

Optional Ends: BS4504/EN1092-1 PN16/ ANSI B16.5 RF

Size Range: DN50-DN800 (2”-32”)

Pressure Range: PN10, PN16, PN20(150LBS)

Optional surface color: RAL5002, RAL5015. RAL5005, red, black. Or customized

Performance:

• The innovative Dual-Plate Design employs two spring-loaded plates suspended on a central vertical hinge

. As Flow Begins, the plates open in response to a resultant force Which acts at the center of the sealed Surface Area

• The Contact point of the reacting spring leg's force acts beyond the center of the plate area, causing the heel to pen first. This prevents rubbing of the seal surface prior to normal plate opening

• As the velocity of flow decreases, torsion spring action reacts automatically. The moves of plates closer to the body seats, reducing the distance and time of travel for closure. By Having

. the plates closer to the body seats at the time of flow reversal. The valve dynamic response is greatly enhanced, This dramatically reduces the water hammer effect

• At closing, the point of spring force causes the plates to close first. This prevents dragging of the heels of the plates and periods maintains seal integrity for much longer Periods

Technical Data Sheets

APPLICATIONS

Steam, Superheated Water, Hot Water, Cold Water, Fluids without acidity or alkalinity properties, Chemicals