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Macnaught 31 Air Operated Oil Stub Pump with Bung Adaptor – PN# R300S-02

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The ‘R’ Series range of pumps have been designed and manufactured using a strong metal construction, providing maximum performance and long service life. All the ‘R’ Series pumps are supplied complete with an inline air lubricator to help prevent premature wear. Suitable for oils up to SAE140 viscosity and premix coolants. The ideal choice for remote mount or integration into lubrication systems.

INCLUDES 10 YEAR WARRANTY!

Macnaught Air Operated Oil Pump Specifications

Model number
R300S

Pump ratio
3:1 ratio

Output SAE 10*
6gal (23L)/min

Output SAE 15W-40*
5gal (19L)/min

Output SAE 90*
4.7gal (18L)/min

Maximum Static Head
98ft (30m)

Airline lubricator
X

Pressure relief valve

2″ Bung adapter

Fully serviceable

Warranty¹
10 years

Parts guarantee²
10 years

Compatible fluids
Engine and gear oils up to SAE140, auto trans, hydraulic fluid, diesel

Min-Max air pressure
60/150psi (400-1030kPa)

Air inlet
1/4″ NPT(F)

Pump outlet
3/4″ NPT(F)

Pump inlet
1″ NPT(F)

Min air compressor
6cfm/min (.16m³)

Macnaught Air Operated Oil Pump data sheet: PDF
Instruction Manual: PDF

Features & Benefits:

Heavy duty construction
Air Inlet (1/4” NPT)
Oil outlet (3/4” NPT)
2”  sliding bung adapter
Oil inlet (1” NPT)
Large exhaust port
Oil lubricator
10 Year Macnaught warranty

Value Proposition: The R series pumps are high quality, heavy duty, reliable oil pumps.  The ideal choice for remote mount or integration into oil systems. The strong metal construction provides maximum performance and long service life. 

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