A check valve responds to system dynamics, not an external command. Correct selection depends on velocity, deceleration, head and acceptable pressure loss.
Swing check
Low resistance in steady flow but may close slowly in rapidly reversing systems.
Dual-plate check
Compact wafer construction with spring-assisted plates and reduced travel.
Silent axial check
Short-stroke spring-assisted closure can reduce slam at pump discharge.
System review
Calculate velocity, minimum flow, cracking pressure and transient behaviour before final selection.
Information to include with an enquiry
Provide nominal size, pressure rating, medium, temperature, connection standard, materials, operating method, required testing and project documentation. Greysen will review the duty and confirm the final configuration in the approved data sheet.
