Union Valve supplies butterfly valves, gate valves, check valves and pipeline connections for isolation, valve-position supervision and reverse-flow prevention in fire sprinkler, hydrant, standpipe, fire pump and fire-water distribution systems.
✓ Valve selection based on installation location and required function
✓ Signal, OS&Y, NRS and non-return configurations for different system duties
✓ UL Listed or FM Approved options confirmed by product model and project requirement
Explore typical valve locations and product options across fire pump, sprinkler, hydrant and fire-water distribution systems.
Valve solutions for dependable isolation, non-return protection and equipment connection around fire pump installations.
Pump suction · Pump discharge · Bypass · Test lines
Isolation and directional flow solutions for wet, dry and pre-action sprinkler system pipework.
Main supply · Zone isolation · Risers · Test and drain branches
Reliable shut-off and non-return protection for hydrants, standpipes and zoned fire-water supply networks.
Building inlets · Standpipe risers · Zone branches · Hydrant mains
Valve and connection solutions for controlling fire water between storage facilities and distribution networks.
Tank outlets · Reservoir lines · Ring mains · Building supply lines
Compact isolation valves for fire-water mains, sprinkler risers and sectional shut-off points.
Duty: On/off isolation
Connections: Wafer · Lug · Grooved · Flanged
Confirm: Size · Pressure · Operation
Full-bore isolation valves for pump lines, hydrant mains, standpipes and tank outlets.
Duty: Main pipeline isolation
Designs: Resilient seated · NRS · OS&Y
Confirm: Size · Pressure · Stem design
Automatic non-return valves for fire pump discharge and fire-water supply lines.
Duty: Reverse-flow prevention
Types: Swing · Dual plate · Silent check
Confirm: Flow · Orientation · Closing response
Detachable connections for joining valves, pumps and fire-water pipework.
Duty: Equipment and pipeline connection
Locations: Pumps · Valves · Risers · Mains
Confirm: Standard · Rating · Facing
Start with the required function and installation point, then confirm the size, pressure rating, connection, materials, operation and project approval requirements.
| If the project requires | Choose | Typical locations |
|---|---|---|
| Full-bore isolation with minimal flow restriction | Gate Valve | Pump suction and discharge lines, hydrant mains, standpipes and tank outlets |
| Compact isolation where installation space is limited | Butterfly Valve | Large-diameter mains, sprinkler risers, ring mains and sectional isolation points |
| Automatic prevention of reverse flow | Check Valve | Fire pump discharge and fire-water supply lines |
| A detachable connection between valves, pumps and pipelines | Flange | Pump connections, valve connections, risers and fire-water mains |
Match the product to the specified pipeline size.
Confirm the design pressure and possible surge conditions.
Confirm flanged, wafer, lug or grooved connection, subject to product type.
Match the water quality, temperature, corrosion conditions and project specification.
Confirm handwheel, lever, gearbox or actuator requirements.
Check accessibility, orientation and maintenance clearance.
Follow the contract, drawings and technical specification.
Verify required approval for the specific product and model.
A tamper or supervisory switch can monitor the valve position in fire-water systems.
OS&Y:The rising stem provides a clear visual indication of the valve position.
NRS:The non-rising design is more compact where installation clearance is limited.
Confirm the required stem design and supervision method against the project specification.Check valves are normally installed on fire pump discharge lines to prevent reverse flow.
UL Listed and FM Approved are separate third-party certification systems.
Approval applies only to the specific model, size, pressure rating and configuration covered by the applicable listing or certificate.
Specify the required approval so availability and supporting documents can be confirmed before quotation.Final selection must be confirmed against the project specification. Any required approval should be verified for the specific product type and model offered.
Send your valve schedule, drawings or project requirements. Include the application, size, pressure rating, connection type, operating method and required approvals so we can review the appropriate configuration.
Swing, dual-plate or silent check valves may be used. Selection depends on flow, pressure surge, installation orientation and approval requirements.
No. Approval depends on project specifications and local requirements. If required, verify the exact valve model, size, pressure rating and configuration.
It is required when the system must monitor whether a control valve remains open. Follow the project specification and applicable fire code.
An OS&Y valve has a rising stem that visibly indicates valve position. An NRS valve is more compact but does not provide the same direct visual indication.
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