Globe Valves

Stop-Check Valve

Stop-Check Valve is used for shutoff and, with suitable trim, throttling service. Selection should account for valve construction, sealing arrangement, process-fluid conditions, end connections and operating requirements.

Nominal size: DN15 to DN200
Pressure rating: PN16
Service temperature: --20 to 350 °C (source notation; temperature limits require clarification)
Model designation

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Configuration and suitability depend on the specific model documentation.

Product overview

Stop-Check Valve

Service conditions

A globe valve opens or closes its flow path through linear movement of a disc relative to the seat. Disc travel changes the opening at the seat. Throttling service requires suitable disc geometry and an assessment of flow demand, differential pressure and the pressure loss caused by changes in flow direction.

Construction and description

A stop-check arrangement combines manually commanded shutoff with automatic check action. Define forced-closed and free-to-check operating positions, orientation and flow direction and match disc motion to flow conditions and pump shutdown.

Configuration

Select the manual operator or actuator to suit the valve torque or thrust requirements and site operating conditions. Provide access and clearance for manual operation. For frequent cycling or remote operation, assess actuator output, duty cycle and valve-position feedback.

Service conditions

Specify the process-fluid composition and steady-state, startup and shutdown conditions, then evaluate the body, wetted internals and sealing materials together. Solids, deposits and cleaning procedures can affect sealing surfaces and operating mechanisms. Base the maintenance plan on the actual service conditions.

Applications for this product

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General Industry

Equipment and utility piping

Application note: Confirm isolation, switching and maintenance tasks against the actual process.
Configuration: State the medium, temperature, pressure, operating frequency and connections.
Selection note: Check installation and maintenance access against the actual equipment arrangement.

Additional notes

Additional application notes

This valve is a selection candidate for equipment and general industrial piping. Application focus: Reverse-flow prevention at pump outlets or circulation lines; review installation orientation, cracking differential pressure, closing response and water hammer.

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HVAC

Building hydronic systems

Application note: Confirm isolation, switching and maintenance tasks against the actual process.
Configuration: Check water temperature, insulation, installation space and control requirements.
Selection note: Separate isolation and regulation tasks and check the actual operating pressure differential.

Additional notes

Additional application notes

This valve is a selection candidate for heating, cooling and circulating-water systems. Application focus: Reverse-flow prevention at pump outlets or circulation lines; review installation orientation, cracking differential pressure, closing response and water hammer.

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Power Generation

Steam, feedwater and cooling systems

Application note: Confirm isolation, switching and maintenance tasks against the actual process.
Configuration: State the medium condition and check temperature-pressure ratings and operating cycles.
Selection note: Confirm the operating combination against model documentation, not separate maximum ratings.

Additional notes

Additional application notes

This valve is a selection candidate for power-plant water, steam or equipment utilities. Application focus: Reverse-flow prevention at pump outlets or circulation lines; review installation orientation, cracking differential pressure, closing response and water hammer.

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Water and Wastewater

Water distribution and treatment

Application note: Confirm isolation, switching and maintenance tasks against the actual process.
Configuration: Check water quality, solids, treatment chemicals and connection dimensions.
Selection note: Assess each branch separately; inlet water and treated water may require different configurations.

Additional notes

Additional application notes

This valve is a selection candidate for water supply, pumping stations and wastewater systems. Application focus: Reverse-flow prevention at pump outlets or circulation lines; review installation orientation, cracking differential pressure, closing response and water hammer.

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Related knowledge

Gate Valve vs Globe Valve: Construction, Selection and Industrial Applications

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Stop-Check Valve