Gate valves are built for one job and they do it well: full isolation with minimal pressure drop. When fully open, the gate withdraws completely from the flow path, leaving an unobstructed bore — which is why they remain the default isolation valve on water mains and pump station headers.
Open or shut — not in between
Gate valves are designed for on/off service. Running one partially open causes disc vibration and accelerated seat wear. If you need to regulate flow, specify a butterfly or globe valve instead.
Applications
Potable water distribution, pump suction and discharge isolation, irrigation networks, fire mains, and industrial process pipelines.
Selecting a gate valve
Confirm nominal size, pressure rating, end connections (flanged or threaded), stem type, and seat material suited to your medium. Contact our team for support in matching a valve to your line conditions.
NIAGARA Gate Valve – Model GB1 & GB1LS
High-quality bronze gate valve with non-rising stem design. WRAS approved for potable water applications and built to BS EN 12288 standards for durability and reliable shut-off performance.
NIAGARA Gate Valve – Model GB2C & GB2CLS
Reliable bronze compression gate valve with non-rising stem design. WRAS approved for potable water use and engineered for smooth flow with minimal pressure loss.
NIAGARA Gate Valve – Model GB32
Heavy-duty bronze gate valve with non-rising stem and precision-machined seating surfaces. Kitemarked to BS EN 12288 and designed for high-pressure applications up to PN32.
NIAGARA Gate Valve – Model GB4
Heavy-duty bronze gate valve with non-rising stem and precision-machined seating surfaces. Kitemarked to BS EN 12288 and designed for high-pressure applications up to PN32.
NIAGARA Gate Valve – Model GB41
Heavy-duty bronze gate valve with rising stem design for precise control and reliable shut-off. Built for high-pressure applications up to 32 bar with durable integral seating surfaces.
NIAGARA Gate Valve – Model GB5
Flanged bronze gate valve with non-rising stem design. Built for durability and easy installation without pipe threading, ideal for medium-pressure water and fluid systems.
NIAGARA Gate Valve – Model GS10
Cast iron flanged gate valve with non-rising stem design, ideal for clean and non-corrosive services. Built for dependable operation and tested to BS EN 12266 standards.
NIAGARA Gate Valve – Model GS125
Cast iron flanged gate valve with non-rising stem design, ideal for general water and clean media applications. Built for durability and consistent shut-off performance under Class 125 pressure conditions.
NIAGARA Gate Valve – Model GS16
Durable ductile iron flanged gate valve with non-rising stem design. Ideal for water and fluid systems requiring high strength, corrosion resistance, and reliable shut-off performance.
NIAGARA Gate Valve – Model GS2 & GS2LS
Compact and durable DZR brass gate valve with non-rising stem design. Dezincification-resistant body ensures corrosion protection and long service life. WRAS approved for potable water use.
NIAGARA Gate Valve – Model GS6-HW
Resilient seated gate valve with handwheel or stem adaptor operation. Made from ductile iron with WRAS-approved epoxy coating and EPDM sealing for superior corrosion resistance and water isolation.
NIAGARA Gate Valve – Model GS6-SA
Resilient seated gate valve with handwheel or stem adaptor operation. Made from ductile iron with WRAS-approved epoxy coating and EPDM sealing for superior corrosion resistance and water isolation.
