Hose Monitors | McMaster-Carr

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5 Products

About Pressure Gauges

Find a gauge with the right connection material and dial type—many with traceable calibration certificates.

About Pipe Size

Dual Scale With Top Connection

Top Connection

These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Painted Steel Case with Brass Connection—Dual Scale (psi, kPa)

For Use With: Water
Accuracy: ±2% Mid Scale (Grade B)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
0 to 300	0 to 2,100	10	50	50	300

						Top Connection
Dial Diameter	Hose Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation		Each
GHT Female
2 1/2"	3/4	-40° to 160°	-40° to 160°	Black	Any	9823T11	000000

Drinking Water Pressure Gauges

Top Connection

Check the pressure on your drinking water system with these gauges—they meet NSF/ANSI Standard 61 for safe use with potable water. The dry dial on these gauges is best for low-vibration applications, since the needle can bounce if the gauge is shaken. For more accurate readings under heavy vibration, use a liquid-filled gauge. Mount gauges with the dial face upright.

Painted Steel Case with Brass Top Connection—Dual Scale (psi, kPa)

For Use With: Water
Accuracy: ±2% Mid Scale (Grade B)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
0 to 160	0 to 1,100	2	20	20	200

						Top Connection
Dial Dia.	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Environment	Mounting Orientation		Each
GHT Female
2 1/2"	3/4	-40° to 150°	-40° to 150°	Food Industry	Upright	3515N41	000000

Metal Cam-and-Groove Hose Couplings for Chemicals and Petroleum

Made of metal, these couplings have better durability than plastic cam-and-groove couplings. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Couplings are compatible with Andrews, Dixon, Ever-Tite, and PT cam-and-groove couplings.

Aluminum fittings are lighter in weight than 316 stainless steel fittings. They have good corrosion resistance.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

Straight API Valve-to-Plug Adapters with Sight Glass

For Use With: Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 75 psi @ 72° F
Temperature Range: -40° to 200° F

API valve-to-plug adapters are used to offload tankers with an API valve.

Adapters with a sight glass let you inspect the fluid in your line.

Adapters
Coupling Size							Replacement Gaskets
(A)	(B)	Plug OD (B)	No. of Levers	Pull Ring Material		Each		Each
Aluminum with Brass Levers
4	4	4 3/4"	2	Zinc-Plated Steel	5839N14	0000000	5839N15	00000

Straight API Valve-to-Plug Reducing Adapters with Sight Glass

For Use With: Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 75 psi @ 72° F
Temperature Range: -40° to 200° F

API valve-to-plug adapters are used to offload tankers with an API valve.

Adapters with a sight glass let you inspect the fluid in your line.

Reducing Adapters
Coupling Size							Replacement Gaskets
(A)	(B)	Plug OD (B)	No. of Levers	Pull Ring Material		Each		Each
Aluminum with Brass Levers
4	3	3 5/8"	2	Zinc-Plated Steel	5839N13	0000000	5839N15	00000