FLAPPER CHECK VALVE ASSEMBLY

FLAPPER CHECK VALVE ASSEMBLY

STABILIZED CHECK VALVE

CHECK VALVE

SYSTEMS AND METHODS FOR DETERMINING VALVE FLUTTER

SWING CHECK VALVE

Pressure-Driven Flow Rate Control Valves

Stabilized check valve

CHECK VALVES IN DISHWASHING APPLIANCES

Valve system and method for reducing water hammer effect

REPLACEABLE SEAT FOR CONVERTIBLE CHECK VALVE

Non-return valve for a flow channel through which a flow of air flows

DRY PIPE VALVE

HYDRAULIC SYSTEM FOR A HOUSEHOLD APPLIANCE

TWO-PIN CLAPPER CHECK VALVE

Apparatus and method for installing valve in hollow body and sensor arrangement for sensing data therein

Dry pipe valve

PRE-ASSEMBLED COUPLING ASSEMBLIES WITH PIPE FITTING

Passive backflow prevention apparatus and associated toilet system and method

Dishwasher and water jacket included in same

Pressure control valve

Holding device for a non-return valve flap and method for positioning same

Pressure Relief Valve with Installation Indicator

CLAPPER CHECK VALVE WITH A VALVE SEAT SEAL MEMBER

Valve for bypass conduit

Eccentric backflow preventer

Pressure-driven flow rate control valves

Valve unit, filter head for a valve unit, and filter system

NORMALLY OPEN BACKWATER PREVENTION VALVE

Smoke detection sample point

Adjustable check valve

Clapper check valve with a valve seat seal member

Continuous tilt angle indicator for a swing or tilting disk check valve

Prevention device for LOCA and nuclear reactor having the same

Fluid check valve

Systems and methods for maintaining pool systems

Check valve pivot pin retainer seal

Angle type check valve

DRAIN CONTROL INSECT ABATEMENT METHODS, DEVICES AND SYSTEMS

Pre-assembled coupling assemblies with pipe fitting

Non-Return Device Suitable for Crude Gas Lines of Filtering Separators

Pressure-driven flow rate control valves

Check valve

Apparatus for preventing backflow

Pre-assembled coupling assemblies with pipe fitting

Overflow Protection And Monitoring Apparatus And Methods Of Installing Same

Check valve flapper with reduced moment of inertia and method of making

BLOW MOLDED SUPPORT FOR INLET CHECK VALVE

Check valve ball stop having gasket compression stand off

Locked backwater valve

Anti-rat valve and flap therefor

Method for manufacturing a block forged swing check valve body with a fully encapsulated seat ring

Connector for transferring fluid and method of use

Valve

Valve for bypass conduit

Backwater valve with control linkage

Dual lock flow gate

Dual lock flow gate

Check valve assembly

Shutter and air blower

Check valve

Cushioned Check Valve

Integrated passive one way valve in charge air inlet tank

Bypass valve having a flap skirt for an exhaust-gas turbocharger, and exhaust-gas turbocharger having such a bypass valve

Autonomous brake-cooling system for aircraft

Additively manufactured valve assembly

Pre-assembled coupling assemblies with pipe fitting

Valves including multiple seats and related assemblies and methods

CLEANING APPARATUSES FOR CHECK VALVES

Drain valve

Pre-assembled coupling assemblies with pipe fitting

Domestic appliance for the cleaning of household items

Check valves

Flapper valve

Rod-mounted buffer to cushion check valve closure

Connector for transferring fluid

Back pressure flap valve arrangement and the use thereof

Adapter system for a check valve

Overflow protection and monitoring apparatus and methods of installing same

Constant pressure switch apparatus and water heating system

Check Valve

Flapper valve with improved flapper

Back pressure flap valve arrangement and the use thereof

Valve insert

Combined isolation valve and check valve with integral flow rate pressure, and/or temperature measurement and field configurability

Mounting of a flap valve shaft

Contoured check valve disc for low cracking pressure

Valves including multiple seats and related assemblies and methods

Backwater valve with control linkage

Butterfly valve, sterile powder conveying device composed of multiple butterfly valves and its method of use

Check valve

Flapper check valve bumper

Connector for transferring fluid and method of use

Adjustable stop for check valve

Visualization of tests on globe-type valves using phased array sequence scanning

Fuel tank check valve

SANITARY CHECK VALVE

Composite sandwich panels for oilfield valve

Air compressor

DRAIN FITTING FOR A PORTABLE TANK

Backwater valve assembly and method

Check valve dual-orifice chamfered housing

Powerless back-flow prevention apparatus

Direct air capture device

Check valve control unit

Parallel cylinder type check valve

Valve Having Non-Round Closure Member

Suction/compression assembly for a waste material aspiration system

Outdoor unit of air conditioner and control device for the outdoor unit

Valve insert

Isolation valve with debris control and flow tube protection

One-way check valve for solid particulate flow pipeline

Connector for transferring fluid

Flapper stabilization for back pressure valve

Flapper stabilization for back pressure valve

Compact air stop valve for aircraft galley plumbing system

Floating methanation system

Check valves

Check valves

Cushioned check valve

Dual Flow Check Valve

Explosion-proof valve

Check valve housing

Check valve with backbone enhanced petals

Check valve flapper

Check valve disc

Composite injection molded check valve with integrated features

Pressure relief assembly

Check valve with reduced opening speed

Passive explosion isolation valve with pulse jet cleaning

FUELING DEVICE AND MANUFACTURING METHOD OF FUELING DEVICE

Adjustable stop for check valve

Quick Maintenance Undersea Check Valve

Backwater valve assembly and method

Yield monitoring system

Check valve having petals with lift generating elements

Autonomous fluid control device having a movable valve plate for downhole fluid selection

Isolation valve with debris control and flow tube protection

Backwater valve with control linkage

Valve insert

Apparatus and Methods for Limiting or Preventing Backflow of Gas up Through a Plumbing Fixture

Water drain plug

Curved flapper seal with stepped intermediate surface

Compact air stop valve for aircraft galley plumbing system

Adjustable valve for IOP control with reed valve

Valve assembly

Alignment system for flapper valve

Wafer check valve assembly and related methods of use

Low profile backwater valve with lock

Valve for inflatable objects

Plug valve with bowing rigid arms

Clack valve assembly

Check valve

Differential dry pipe valve

Dual plate check valve

Flowline flapper valve

UNDULATING SEALING SURFACE WITH RAISED RIDGE

Unpowered apparatus for preventing backflow

Check valve

SAFETY ARRANGEMENT

Unitary Flapper Base Method of Manufacture

Non-return valve

Isolation valve with debris control and flow tube protection

Vehicle vent valve assembly

Air intake modulator and method of using

Valve for inflatable objects

Valves having high wear-resistance and high corrosion-resistance

System and method for ventilating a turbine

Connector for transferring fluid and method of use

Check valve for transport and storage containers for fluids

Dynamic flapper and method

FLAPPER VALVE AND METHOD

Water flow detection device

Tilting Disc Swing Check Valve

Backflow preventing apparatus for water closets

Unitary Flapper Base and Method of Manufacture

VALVE ASSEMBLY

FLUID EJECTION DEVICE

Flowline flapper valve

Snap action valve with bumper pad

METHODS AND APPARATUS FOR CONTROLLING AIR IN INFLATABLE DEVICES

Low profile backwater valve

Connector for transferring fluid and method of use

A/C drain line device

CHECK VALVE AND SUBSTRATE PROCESSING APPARATUS USING SAME

Backwater valve assembly with removable valve member

Backflow preventing apparatus for water closets

Living-hinge air vent valve

Shut-Off Device for a Waste-Water Inspection Chamber

Top entry swing check valve

Valve flap for a plumbing valve

Surge Anticipator Safety Check Unit For A Liquid System

Dry pipe valve for fire protection sprinkler system

Check valve for vacuum sewage pipe and vacuum sewage system

Check valve assembly including position indicator and method of operation

Valve actuating device

Check Valve With Oblong Hinge Openings

Full opening and reclosable explosion vent apparatus

Non-return valve

Connecting structure for a check valve

Public water system protection apparatus

Water column supervisory switch

Tubing fill and testing valve

Methods and apparatus for controlling air in inflatable devices

Safety valve with extension springs

Dry pipe valve for fire protection sprinkler system

Valve for inflatable objects

Connector with check valve and method of use

Low pressure check valve

Valve arrangement for guiding a liquid against a gas pressure gradient

Full-opening compact swing check valve

Flap valve

Check valve position detector

Flange valve

Clapper check valve assembly

Swing valve with replaceable seat and tools and methods for engaging seat

Butterfly check valve

Sewer back-up prevention device for a recreational vehicle

Sewer back-flow preventer monitor

Apparatus for dissolving a fragrance carrier

Single waterway shaft structure

Sewage stopper systems