EnglishValve Body
Ductile iron, carbon steel or stainless steel, subject to valve design and service conditions.
Pump Station Valves for Reliable Flow Control and Pump Protection
Union Valve supplies butterfly valves, gate valves, check valves and Y strainers for dependable isolation, flow control, backflow prevention and debris removal in water supply, wastewater and industrial pumping systems.
✓ Reliable isolation, non-return flow and protection against pipeline debris
✓ Product selection based on flow rate, pressure, medium, water hammer risk and actuation
✓ Products available to applicable EN, BS and AWWA standards and project-specific requirements
Pump Station Valve Guide
Typical Valve Arrangement for a Pump Station
Explore the typical positions and functions of valves and pipeline accessories used to isolate equipment, protect the pump, prevent reverse flow and simplify system maintenance.
02
Selected component
Gate Valve
01
Installation position
Pump suction line, upstream of the pump
02
Main function
Provides full-bore isolation so the pump and upstream pipeline can be inspected or maintained.
03
Recommended type
Resilient seated gate valve
04
Operating conditions to confirm
DN, pressure rating, medium, connection standard, installation space and operating method
The arrangement shown is for general reference. Final valve selection and installation positions should be confirmed according to the pump, medium, pressure, flow conditions and project design.
Recommended Valves and Strainers for Pump Station Systems
Product selection should be based on installation position, pipe size, design pressure, medium, flow velocity, pump operating conditions, water-hammer risk and applicable project standards.
Butterfly Valves
Butterfly valves provide compact isolation on medium- and large-diameter pump station pipelines. Wafer, lug and double-flanged configurations support different installation, maintenance and actuation requirements.
Connections: Wafer · Lug · Double flanged
Designs: Concentric · Double eccentric
Operation: Manual · Electric · Pneumatic
Typical locations: Pump discharge · Station mains · Equipment isolation
Gate Valves
Gate valves provide full-open or full-closed isolation on pump suction lines, station mains and equipment connections. Their full-bore flow path helps limit pressure loss when the valve is completely open.
Designs: Resilient seated · NRS · OS&Y
Duty: Pump and pipeline isolation
Typical locations: Pump suction · Station inlet · Equipment isolation
Selection: DN · Pressure rating · Medium · Connection standard · Operating method
Check Valves
Check valves are installed on pump discharge lines to prevent reverse flow when a pump stops or operating conditions change. Valve design and closing response should be selected carefully to reduce slam and manage surge risk.
Types: Swing · Dual plate · Silent check
Duty: Pump discharge · Backflow prevention
Typical locations: Downstream of pumps · Parallel pump discharge lines
Selection: Flow velocity · Closing response · Orientation · Water-hammer risk
Y Strainers
Y strainers capture pipeline debris before it reaches pumps, valves and downstream equipment. They are typically installed on pump suction lines and should allow convenient screen removal and cleaning.
Duty: Debris removal · Equipment protection
Typical locations: Pump suction · Equipment inlet · Auxiliary lines
Selection: Screen opening · Pressure loss · Medium · Flow rate
Maintenance: Confirm screen removal and cleaning access
Pump Station Selection Guide
Valve Selection by Operating Condition
Use this comparison as an initial guide. The final solution should be matched to the actual pump, pipeline and operating data.
| Operating condition | Recommended solution | Selection reason |
|---|---|---|
| Standard clean-water pump station | Swing check valve | Low pressure loss and an established design for suitable clean-water duties |
| Limited installation space | Dual plate check valve | Compact face-to-face dimension |
| Frequent pump start-stop cycles | Dual plate or engineered check valve | Closing response can be selected around the operating cycle and system dynamics |
| Large-diameter transmission line | Double eccentric butterfly valve | Compact isolation for large-diameter pipelines |
| Pump inlet isolation | Resilient seated gate valve | Full-bore flow path with low resistance when fully open |
| Restricted maintenance space | Dismantling joint | Provides adjustment space that can simplify valve removal and replacement |
| Water-hammer-sensitive system | Project-specific check valve selection | Closing characteristics must be matched to the system and pump operating sequence |
Technical note: Final valve selection should be confirmed through operating data and, where required, hydraulic transient analysis. No single check valve design can be assumed to eliminate water hammer in every system.
Project Selection Information
Working Conditions, Materials and Options
Provide the operating data and confirm the required product configuration so the selected valve can be reviewed against the application.
01
Information required
Working Conditions to Provide
Send these details with your enquiry so the valve type, materials, pressure class and operating method can be reviewed efficiently.
- Medium and water quality
- Pipe size
- Operating and design pressure
- Flow rate or velocity
- Pump head
- Start-stop frequency
- Installation orientation and available space
- Required flange standard
- Manual, electric, pneumatic or hydraulic actuation
- Drinking-water or project certification requirements
Certification is confirmed by product
Certification marks should only be displayed when the relevant certificate can be supplied for the specific valve. Compliance with a standard does not mean that every product holds every listed certification.
Technical selection support
Send Your Working Conditions
Share your pump and pipeline data for a project-specific valve configuration review.Pump Station Valves FAQs
Where should a check valve be installed in relation to the pump?
A check valve is normally installed on the pump discharge line, downstream of the pump and before the discharge isolation valve.
Which check valve is suitable for frequent pump start-stop operation?
A dual plate check valve is often suitable because its spring-assisted discs close quickly. Final selection should consider flow velocity and water hammer risk.
Can a butterfly valve replace a gate valve in a pump station?
In many large-diameter isolation applications, yes. Gate valves remain preferable where a full-bore flow path and minimal pressure loss are required.
How should water hammer risk affect check valve selection?
Select the valve according to its closing characteristics, flow velocity and system pressure. Water-hammer-sensitive systems may require fast-closing or controlled-closing designs and hydraulic analysis.