Markets
Products A to Z
- Actuators
- Air Vents, Heads & Eliminators
- ANSI Valves
- ARI Valves
- Ball Valves
- Ball Valve – Carbon Steel
- Ball Valves – Brass
- Ball Valves – Bronze
- Ball Valves – Butt Weld
- Ball Valves – Ductile Iron
- Ball Valves – Electrically Actuated
- Ball Valves – Electrically Actuated – Spring Return
- Ball Valves – Flanged
- Ball Valves – Gas Service
- Ball Valves – Lever Operated
- Ball Valves – Marine
- Ball Valves – Pneumatically Actuated
- Ball Valves – Socket Weld
- Ball Valves – Stainless Steel
- Ball Valves – Threaded
- Bellows & Expansion Joints
- Expansion Joints – Air, Gasses & Oil
- Expansion Joints – Butt Weld
- Expansion Joints – Chemical & Acids
- Expansion Joints – Flanged 130mm FxF
- Expansion Joints – Flanged Various FxF
- Expansion Joints – High-Temperature
- Expansion Joints – HVAC & Water
- Expansion Joints – Metal Bellows
- Expansion Joints – Threaded
- Expansion Joints – WRAS, ACS & FDA
- Butterfly Valves
- Butterfly Valves – Bronze
- Butterfly Valves – Carbon Steel
- Butterfly Valves – Cast & Ductile Iron
- Butterfly Valves – Double Flanged
- Butterfly Valves – Double Offset
- Butterfly Valves – Electrically Actuated
- Butterfly Valves – EPDM Lined
- Butterfly Valves – Gas Service
- Butterfly Valves – High Performance
- Butterfly Valves – Industrial & HVAC
- Butterfly Valves – Lugged & Tapped
- Butterfly Valves – Marine
- Butterfly Valves – Mono Flanged
- Butterfly Valves – NBR Lined
- Butterfly Valves – Pneumatically Actuated
- Butterfly Valves – PTFE Lined
- Butterfly Valves – Silicone Lined
- Butterfly Valves – Stainless Steel
- Butterfly Valves – Viton Lined
- Butterfly Valves – Wafer Multi-Flange
- Butterfly Valves – WRAS Approved
- Check Valves
- Check Valves – Ball & Lift
- Check Valves – Brass
- Check Valves – Bronze
- Check Valves – Cast & Ductile Iron
- Check Valves – Disc
- Check Valves – Dual Plate
- Check Valves – Flanged
- Check Valves – Gas Duty
- Check Valves – HVAC & Industrial
- Check Valves – Marine
- Check Valves – Socket Weld
- Check Valves – Solvent Weld
- Check Valves – Spring Loaded
- Check Valves – Stainless Steel
- Check Valves – Steel
- Check Valves – Swing (Flap)
- Check Valves – Threaded
- Check Valves – UL/FM Approved
- Check Valves – Wafer (Multi-Flange)
- Check Valves – WRAS Approved & Water Works
- Class 800 Valves & Strainers
- Controls Valves
- Data Loggers & Displays
- Diaphragm Valves
- Fire Hydrant, Deck & Landing Valves
- Fire Hydrant (Deck) Valves – Marine
- Fire Hydrant (Landing) Valves – Gate
- Fire Hydrant Valves – BSP/NST Outlet
- Fire Hydrant Valves – Diaphragm
- Fire Hydrant Valves – Globe
- Fire Hydrant Valves – Instantaneous Outlet
- Fire Hydrant Valves – Landing (Dry Riser)
- Fire Hydrant Valves – Pressure Regulating
- Fire Hydrant Valves – Storz Outlet
- Float Valves
- Flow Switches
- Frese Valves
- Gas Meters
- Gas Valves
- Gate Valves
- Gate Valves – Actuated
- Gate Valves – Brass
- Gate Valves – Bronze
- Gate Valves – Flanged
- Gate Valves – Gas Service
- Gate Valves – Industrial & HVAC
- Gate Valves – Iron
- Gate Valves – Knife Gate Valves
- Gate Valves – Lever Operated
- Gate Valves – Marine
- Gate Valves – Socket Weld
- Gate Valves – Stainless Steel
- Gate Valves – Steel
- Gate Valves – Threaded
- Gate Valves – UL Listed/FM Approved
- Gate Valves – Water Works
- Globe Valves
- Globe Valves – Angled
- Globe Valves – Bronze
- Globe Valves – Flanged DIN & ANSI
- Globe Valves – Flanged JIS
- Globe Valves – Industrial & HVAC
- Globe Valves – Iron
- Globe Valves – Marine
- Globe Valves – Screw Down Non-Return (SDNR)
- Globe Valves – Screw Lift (SL)
- Globe Valves – Screwed
- Globe Valves – Self-Closing
- Globe Valves – Socket Weld
- Globe Valves – Stainless Steel
- Globe Valves – Steel
- Globe Valves – Straight
- GWF Meters
- Heat & Energy Meters
- Hydrogen Valves
- JIS Valves
- Meter Boxes & Manifolds
- Mud Boxes
- Needle Valves
- Oil Meters
- Overflow & Pressure Control Valves
- Parallel Slide Valves
- Pneumatic Cylinders
- Pneumatic Valves
- Pressure Gauges
- Pressure Reducing Valves
- Pressure Reducing Valves – Air & Gases
- Pressure Reducing Valves – Bailey Birkett
- Pressure Reducing Valves – Direct Acting
- Pressure Reducing Valves – Flanged
- Pressure Reducing Valves – HVAC & Water
- Pressure Reducing Valves – Oil
- Pressure Reducing Valves – Pilot Operated
- Pressure Reducing Valves – Spirax Sarco
- Pressure Reducing Valves – Steam
- Pressure Reducing Valves – Threaded
- Pressure Reducing Valves – WRAS Approved
- Pressure Switches
- Pulse & Communication Modules
- Quick Closing Valves
- Safety Relief Valves
- Safety Relief Valves – Air & Gasses
- Safety Relief Valves – Atmospheric
- Safety Relief Valves – Bailey Birkett
- Safety Relief Valves – Cryogenic & Food
- Safety Relief Valves – Double
- Safety Relief Valves – Enclosed Side Discharge
- Safety Relief Valves – Goetze
- Safety Relief Valves – Heating & Water
- Safety Relief Valves – High Capacity
- Safety Relief Valves – In-Line
- Safety Relief Valves – Johnson Valves
- Safety Relief Valves – Medium Capacity
- Safety Relief Valves – Nabic
- Safety Relief Valves – Oxygen
- Safety Relief Valves – Pressure & Temperature
- Safety Relief Valves – Process & Oil
- Safety Relief Valves – Steam & Boilerhouse
- Safety Relief Valves – Wade
- Sea Chests
- Self Closing Valves
- Sight & Flow Indicators
- Sika Thermometers
- Solenoid Valves
- Solenoid Valves – Asco
- Solenoid Valves – Cryogenic
- Solenoid Valves – Gas
- Solenoid Valves – General Purpose
- Solenoid Valves – Normally Closed
- Solenoid Valves – Normally Open
- Solenoid Valves – Pressure Assisted
- Solenoid Valves – Spool
- Solenoid Valves – Steam
- Solenoid Valves – WC Flushing
- Solenoid Valves – WRAS Approved
- Solenoid Valves – Zero Pressure
- Sounding Cocks
- Spring Return Electrically Actuated Valves
- Steam Traps
- Storm Valves
- Strainers & Filters
- Tank Level Gauge & Indicators
- Teekay Couplings
- Temperature Controls & Valves
- Thermometers & Temperature Gauges
- UL/FM Fire Protection Valves
- Vacuum Breakers
- Water Meters
- Water Meters – Boundary Box & Manifold
- Water Meters – Combination
- Water Meters – Domestic & Commercial
- Water Meters – Electromagnetic
- Water Meters – Electronic Hybrid
- Water Meters – Fittings
- Water Meters – Flanged Bulk
- Water Meters – Hot Water
- Water Meters – Insulation Jackets
- Water Meters – Irrigation & Dirty Water
- Water Meters – Manifold
- Water Meters – Meter Boxes
- Water Meters – Multi Jet
- Water Meters – Positive Displacement
- Water Meters – Pulse & M-Bus Modules
- Water Meters – Riser & Down Pipe
- Water Meters – Single Jet
- Water Meters – Ultrasonic
- Water Meters – Woltmann Turbine
- Water Works Valves
Our Websites
JV080032 – Ali-Bronze Marine Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – NBR Seat
A marine duty aluminium bronze, spring-loaded dual plate check valve an NBR seat suitable for cold and hot water, seawater, fuel oil and other non-aggressive media.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN600 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Aluminium Bronze Body & Plates • Stainless Steel Spring • NBR Seat
Pressure Rating
50-300mm PN16 • 350-600mm PN10
Temperature
-40°C to 100°C
