FLUID CONTROL ASSEMBLIES FOR SPRINKLER SYSTEMS

CHECK VALVE

INTERNALLY INSTALLED CHECK VALVE

CHECK VALVE FOR BACKFLOW PREVENTER

SYSTEMS AND METHODS FOR DETERMINING VALVE FLUTTER

SWINGING DOOR CHECK VALVE

Check Valve With Integral Handle

VALVE DEVICE WITH BALL LOCKS

FLUID CONTROL ASSEMBLIES FOR SPRINKLER SYSTEMS

Telescoping spring retention assembly for a check valve

Spring Stop for Clapper Valve

Clapper with an upstream cam-arm and roller arrangement

Backflow prevention assembly having a cartridge with dual zone testing

Automatic shutoff valve for breakaway wet barrel fire hydrant

CHECK COVER ASSEMBLIES FOR BACKFLOW PREVENTION ASSEMBLIES WITH INTEGRATED TEST COCK PROTECTION SHROUD

EMERGENCY DEGASSING VALVE APPARATUS

Compact valve assembly

Valve device with ball locks

Check valve with integral handle

Backflow prevention assembly having a cartridge with dual zone testing

MUFFLER VALVE AND MUFFLER

Watertight check valve

Valve device

Hermetic container for food with automatic valve for discharging the steam produced by heating the food, in particular in a microwave oven, and relative automatic steam discharge valve

Backflow prevention assembly with a linkage

Ball valve assembly

MUFFLER VALVE AND MUFFLER

Valve device

Relief valve with testing lockout

Airflow balancing valve for HVAC systems

Watertight check valve

Check valve cartridge with flow guide for compact backflow prevention assembly

Fluid control assemblies for sprinkler systems

Household electric appliance with high/low-pressure function

Watertight check valve

Apparatus and method for activation of flapper check valve

Angle type check valve

Angle type check valve

Modular valve assembly

Valve assembly for exhaust system

Modular valve assembly

Externally mounted in-line exhaust gas valve

Clapper valve

Dust suction and charging device for floor sweeping robot, and dust suction and charging method thereof

Device for activity test of extraction check valve

Solenoid valve for activity test of extraction check valve

Damper Valve Assembly

Damper valve assembly

Valve device

High pressure float valve

VALVE

A NON-RETURN VALVE

Modular valve assembly

Flow passage device and engine cooling system

Fluid control assemblies for sprinkler systems

System, device and associated methods for protection during over-temperature and over-pressure in a water heater

Air admittance valve preventing mephitis overflow

Exhaust pressure control valve

Airflow balancing valve for HVAC systems

Spring loaded check valve

Reduced-Pressure Type Backflow Preventer

Spring loaded HVAC damper

Clapper valve

Fluid control assemblies for sprinkler systems

Flapper-mounted buffer to cushion check valve closure

Method for locating check valve pin

CHECK VALVE

Valve device for exhaust flow passage

Fire extinguishing system valve and fire extinguishing system having such a valve

Valve insert

Sewage Control System

Modular valve assembly

Dry alarm valve assembly for controlling a sprinkler firefighting system

Modular valve assembly

Air admittance valve preventing mephitis overflow

Passive exhaust valve with external torsion spring

Passive exhaust valve with dual torsion spring

Check valve

Check valve for downspouts

Valve for Controlling a Gas Stream, Liquid Separator, Venting System and Internal Combustion Engine Having Such a Valve

Alarm valve station of a fire extinguishing system, in particular a sprinkler or spray water extinguishing system, and fire extinguishing system

Check valve with accelerated closure

Flapper and seat with a hard and soft seal for a subsurface safety valve

Control valve assembly

Flap valve apparatus

Integral Valve

Fuel tank check valve

Clapper valve

FLUID CONTROL ASSEMBLIES FOR SPRINKLER SYSTEMS

Check valve with accelerated closure

Check valve

Valve structure, nonlubricated linear compressor, and cryocooler

Control valve assembly

Parallel cylinder type check valve

Exhaust system spring with torsional damping

Swing check valve

Enhanced hydrocarbon well blowout protection

Valve assembly and method of controlling flow of fluid

Flame arrester with porous sleeve

Valve device for exhaust flow passage

Variable valve

Valve insert

Water inflow prevention device for aircraft working when landing in water, pressure adjusting valve, and aircraft

Integral valve

Passive exhaust valve assembly and forming method

Air admittance valve preventing mephitis overflow

VALVE STRUCTURE

Anti-flutter check valve

Explosion-proof valve

Electromagnetic release for valve

Leaf spring type variable valve

Valve flapper spring stop mechanism

Pressure relief valve

System, method and apparatus for combined ball segment valve and check valve

Device for regulating the air flow in a pipe

Valve device for exhaust gas flow path

Flow-limiting device

Flapper relief valve

Extraction fan assembly including a damper that closes firmly when the fan is not running and reduces the pressure drop when the fan is running at full speed

Dual action check valve with combined return and bypass passages

Valves

Minimum pressure shut-off valve

Valve insert

Spring loaded HVAC damper

Handle mechanism for an HVAC damper actuator

Low profile valves

Wafer check valve assembly and related methods of use

Adaptive valve spring retainer with vibration damping

BIASED SWING CHECK VALVE

Valve for inflatable objects

Hybrid valve for attenuation of low frequency noise

Check valve

Non-return valve assembly of the pivoting flap type, typically for insertion in floor drains

Nozzle check valve

Mount for inlet check valve

Flapper valve

Check valve for a pipe section

Extraction Fan Assembly Including a Damper that Closes Firmly when the Fan is Not Running and Reduces the Pressure Drop when the Fan is Running at Full Speed

Check valve

EXPLOSION PROTECTION VALVE FOR INTERRUPTING A FLUID FLOW IN A PIPELINE

Enhanced hydrocarbon well blowout protection

Valve for inflatable objects

Connector for fuel tank and check valve

Valves

Fluid Selective Check Valve

Snap-action valve for exhaust system

Pressure relief valve

NON-RETURN VALVE

COATED SPRING AND METHOD OF MAKING THE SAME

Fuel leak prevention system

Fuel leak prevention system

Negative pressure relief valve assembly

Fluid circuit breaker quick disconnect coupling

Centreline flow valve

Safety valve torsional spring assembly and method

Field convertible valve and sprinkler system

Snap-action valve for exhaust system

Passive valve for attenuation of low frequency noise

Snap-action valve for exhaust system

Fluid flow control valve

FIELD CONVERTIBLE VALVE AND SPRINKLER SYSTEM

Pneumatic safety valve

Fuel shut-off valve assembly with associated components and methods of making and assembling the same

Strainer and anti-backflow device for compressors

Quickly opening hinged check valve with pre-determined upstream pressure required to open specification

Split flapper check valve including a torsion spring wear reduction mechanism

Safety valve having mono spring closure mechanism

Check valve

Fuel check valve

Check valve with an improved clapper and valve seat

Check valve

Quickly opening hinged check valve with pre-determined upstream pressure required to open

Fluid flow control valve

Valve for inflatable objects

Fluid flow regulator for swimming pool cleaning system

Flapper type fill tube check valve

Breakaway pipe coupling with automatic shutoff

Active pressure relief valves and methods of use

Fuel shut-off valve assembly with associated components and methods of making and assembling the same

Fuel tank system of vehicle

Flange valve

Safety valve having extension spring closure mechanism

Barbell with rotating hand

Charge-air cooler and method to reduce water induction in engine

Passive exhaust valve with floating spring stop