Spring-assisted non-return valve engineered to reduce slam and water hammer.
Engineered around the medium, pressure, temperature and operating duty.
Product overview
Spring-assisted non-return valve engineered for rapid, quiet closure before flow reversal, helping reduce check-valve slam and water hammer.
Greysen reviews the complete operating case before confirming the valve. Body style, wetted materials, sealing system, connection standard and operator are matched as one project configuration.
Low-cracking-pressure options support pump discharge duties.
CONFIGURATION OPTIONS
Materials and sealing selection
Material combinations are reviewed against corrosion, erosion, temperature and required service life. The final approved data sheet defines every pressure-containing and wetted component.
Body
Cast iron, ductile iron, carbon steel or stainless steel
Trim
Stainless steel or bronze disc and spring
Seat & seals
EPDM, NBR or metal seat
Connection
Wafer or flanged
VALVE + OPERATOR
Operation and automation
Manual and automated packages are selected using the valve operating load, maximum differential pressure, required speed and available site utilities.
Manual operation
Lever, handwheel or gearbox options are matched to size, torque and access.
Pneumatic actuation
Double-acting or spring-return packages can include solenoid, switch box and positioner.
Electric actuation
On/off or modulating actuators are configured for voltage, duty, enclosure and control signal.
Package verification
Torque or thrust, safety factor, mounting interface, travel time and fail position are checked together.
APPLICATION REVIEW
Information for correct selection
Nominal size, pressure class and mating connection standard.
Medium, concentration, solids and minimum/maximum temperature.
Normal and maximum differential pressure, flow rate and cycle frequency.
Manual or actuated operation, fail position, control signal and required travel time.
Typical applications
Pump discharge
High-rise water systems
HVAC circulation
Industrial cooling water
Engineering checks
Pressure-temperature suitability
Material and media compatibility
Flow velocity and operating load
Installation orientation and maintenance access
PROJECT SUPPORT
Technical documentation
Request the documents required for consultant review, procurement and site handover. Availability is confirmed for the selected product and order.
Product data sheet
General arrangement drawing
Installation and maintenance guidance
Test and material documents when specified
Configuration note: Published ranges describe common industry configurations. Final dimensions, pressure-temperature limits, materials, certifications and standards are confirmed against the enquiry and approved data sheet.