HAMMOND VALVE

Hammond Valve is a manufacturer of brass and bronze valves, with a product history that includes the 967 and 968 series of inline swing check valves. These valves are used to prevent backflow in piping systems by allowing flow in one direction and closing automatically when flow reverses. The 967 series features FNPT x FNPT threaded connections, while the 968 series uses sweat x sweat connections for soldered joints. Both series are constructed from brass and are available in pipe sizes from 1/2 in to 2 in. The swing check design uses a hinged disc that opens with forward flow and seats against a metal seat when flow stops or reverses. This configuration is suited for horizontal or vertical installation, depending on the specific model and application requirements. The valves are rated for use with water, oil, and gas media, making them applicable across plumbing, heating, HVAC, and light industrial systems. The 967 series includes a 1 in model with a flow rate of 31 gpm, indicating capacity for typical residential and commercial flow demands. The brass body provides corrosion resistance in non-aggressive fluid service, and the inline body design allows for compact installation in tight spaces. 3G Electric supplies Hammond Valve swing check valves as part of its industrial equipment distribution portfolio. The product range includes multiple SKUs covering common pipe sizes and connection types, allowing procurement specialists to source specific part numbers without minimum order complications. 3G Electric maintains inventory and logistics support for global delivery, so plant engineers and maintenance managers can obtain replacement valves or new installation components without extended lead times. The company provides technical specifications, including pipe size, connection type, flow rate, and media compatibility, to assist with selection. For buyers specifying backflow prevention in water, oil, or gas lines, Hammond Valve swing check valves offer a straightforward inline solution with brass construction and standard connection options. 3G Electric supports the line with product data, quote generation, and order fulfillment for customers worldwide.

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BrandHAMMOND VALVE

CategoryBrass Inline Swing Check Valves

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About HAMMOND VALVE

Common Applications

Plumbing systems — Hammond Valve 968 series sweat x sweat swing check valves in 1/2 in to 1-1/2 in sizes for backflow prevention in copper piping.
HVAC hydronic loops — Hammond Valve 967 series FNPT swing check valves in 1 in and 2 in sizes to prevent reverse flow in heating and cooling circuits.
Residential water supply — Hammond Valve 968-3/4 brass swing check valve with sweat connections for inline installation on domestic water lines.
Light industrial oil lines — Hammond Valve 967-1/2 FNPT swing check valve for oil media backflow prevention in small-bore piping.
Gas piping — Hammond Valve 967 2 in brass swing check valve with FNPT connections for gas service where brass compatibility is acceptable.
Commercial heating systems — Hammond Valve 968 1-1/4 sweat swing check valve for soldered installation in hydronic heating piping.

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Frequently asked questions

Common questions about HAMMOND VALVE from 3G Electric.

What is the difference between Hammond Valve 967 and 968 series swing check valves?

The primary difference is the connection type. The 967 series uses FNPT x FNPT threaded connections, which are female national pipe taper threads on both ends. The 968 series uses sweat x sweat connections, which are designed for soldered joints. Both series are brass inline swing check valves with a swing-type disc for backflow prevention. Pipe sizes range from 1/2 in to 2 in across both series. Selection depends on the piping system: threaded connections allow for mechanical assembly and disassembly, while sweat connections provide a permanent soldered joint. Both are rated for water, oil, and gas media.

What media can Hammond Valve brass swing check valves handle?

Hammond Valve brass inline swing check valves are rated for use with water, oil, and gas. The brass body and internal components are compatible with these media under standard operating conditions. The valves are not intended for aggressive chemicals or media that would attack brass. For specific pressure and temperature ratings, consult the individual product specifications. The 967 series 1 in model has a flow rate of 31 gpm, which provides a reference for capacity. Always verify compatibility with the actual fluid, concentration, and temperature in your system.

Can Hammond Valve swing check valves be installed vertically?

Hammond Valve swing check valves are designed for inline installation and can be installed in horizontal or vertical piping, depending on the specific model and flow direction. The swing disc relies on gravity and flow to operate, so installation orientation affects performance. For vertical flow, the valve should be installed with flow upward to ensure the disc seats properly when flow reverses. For horizontal flow, the valve can be installed in any orientation as long as the hinge pin is horizontal. Always follow the manufacturer's installation instructions for the specific model to ensure proper operation and sealing.

What pipe sizes are available for Hammond Valve 968 series sweat check valves?

The Hammond Valve 968 series brass inline swing check valves are available in pipe sizes including 1/2 in, 3/4 in, 1 in, 1-1/4 in, and 1-1/2 in. These sizes cover common residential and light commercial piping applications. The sweat x sweat connections allow for soldered installation with copper tubing. Each size has a corresponding manufacturer part number, such as 968-1/2 for the 1/2 in model and 968 1-1/2 for the 1-1/2 in model. 3G Electric stocks multiple SKUs across these sizes to support replacement and new installation needs.

How does a Hammond Valve swing check valve prevent backflow?

A Hammond Valve swing check valve uses a hinged disc that swings open when forward flow occurs. When flow stops or reverses, the disc swings back against a seat, creating a seal that prevents reverse flow. This automatic operation requires no external power or manual intervention. The brass body houses the swing mechanism, and the inline design allows installation directly in the piping run. The valve is not a substitute for a backflow preventer assembly where code requires testable devices; it is a component for preventing reverse flow in compatible systems.

What is the flow rate of the Hammond Valve 967 1 in swing check valve?

The Hammond Valve 967 1 in brass inline swing check valve has a flow rate of 31 gpm. This rating provides a guideline for sizing in water, oil, or gas service. Actual flow capacity may vary with pressure drop, fluid properties, and installation conditions. The valve features FNPT x FNPT connections and a standard inline body. For system design, consider the pressure loss across the valve at your operating flow rate. The 31 gpm figure is a published specification for this model and can be used for preliminary selection.