GRACO D31277 – Husky 307 AC 3/8″ NPT Standard Pump, PP Center Section, AC Seats, BN Balls & BN

GRACO D31277 – Husky 307 AC 3/8″ NPT Standard Pump, PP Center Section, AC Seats, BN Balls & BN Diaphragm, 100 PSI

Air-operated double diaphragm pump with polypropylene center section, acetal seats, and Buna-N balls and diaphragm. Features 3/8″ NPT fluid inlet/outlet connections for medium-duty pumping applications.

The Husky 307 air-operated diaphragm pump features a stall-free low pulsation air valve that provides a smooth and rapid changeover.

Typical applications include oil transfer and evacuation, fuel dispense and transfer, windshield wash solution dispense, and water and anti-freeze dispense. Some models UL-approved for use in pumping gasoline and gasoline/alcohol blends up to 10% ethanol, diesel fuel, fuel oil and lubricating oil.

Quick and easy assembly and disassembly design

Easy to service air valve and ball checks

Operates on as little as 20 PSI (1.4 bar, 0.14 MPa)

Split manifold option to pump multiple fluids without mixing

Every pump is tested prior to shipping

3/8 in (9.52 mm) end porting

Delivery up to 7 gpm (26.5 lpm)

Easy-to-service air valve and ball checks

Additional Specifications

Flow Rate: 7 gpm maximum free flow delivery

Max Working Pressure: 20-100 PSI operating range

Material: Polypropylene center section, Acetal seats, Buna-N balls and diaphragm

Displacement Per Cycle: 0.02 gallon (0.076 liter)

Max Air Consumption: 6 scfm

Max Pumpable Solids: 0.006 in (1.5 mm)

Max Operating Temp: PTFE 220°F, Buna-N 180°F, Hytrel 150°F

Sound Level: 75 dBa

Instruction Manual: 308553

Air Exhaust Port Size (in)	3/8
Air Exhaust Port Thread Gender	Female
Air Exhaust Port Thread Type	NPT
Air Inlet Size (in)	1/4
Air Inlet Thread Gender	Female
Air Inlet Thread Type	NPT
Application	Industrial
Ball Material	Buna
Center Section Material	Polypropylene
Compatible Material	Antifreeze, Detergents, Motor Oil, Hydraulic Fluid, Cutting Oil, Water – Wastewater Treatment, Water, Ink
Connection Type	Threaded
Diaphragm Material	Buna
Fluid Inlet Size (in)	3/8
Fluid Inlet Thread Gender	Female
Fluid Inlet Thread Type	NPT
Fluid Outlet Size (in)	3/8
Fluid Outlet Thread Gender	Female
Fluid Outlet Thread Type	NPT
Fluid Section Material	Acetal
Manifold Configuration	End Port
Manifold O-Ring Material	PTFE
Material	Acetal
Maximum Air Consumption (SCFM)	5.5
Maximum Air Pressure (MPa)	0.7
Maximum Air Pressure (psi)	100
Maximum Cycle Rate (CPM)	330
Maximum Flow Rate (GPM)	6.5
Maximum Fluid Pressure (MPa)	0.7
Maximum Fluid Pressure (psi)	100
Maximum Operating Temperature (°F)	150
Maximum Solid Size (in)	0.0625
Minimum Operating Temperature (°F)	40
Power Source	Air
Seat Material	Acetal
Standards Met	ATEX, CE
Type	Pneumatic Diaphragm Pump
Weight (lb)	5.25

Features

Air-operated double diaphragm design

Self-priming operation

Can handle solids up to 0.006 inches

Chemical resistant materials

Relatively quiet operation at 75 dBa

3/8″ NPT connections for medium flow applications

Applications

Chemical transfer

Paint and coating circulation

General industrial fluid handling

Applications requiring self-priming pumps

Medium viscosity fluid pumping

Compatible Equipment

Husky 307 pump series

Related Parts

D31255 – Husky 307 AC 3/8″ NPT Standard Pump, PP Center Section, AC Seats, TPE Balls & TPE Diaphragm

D32255 – Husky 307 PP 3/8″ NPT Standard Pump, PP Center Section, AC Seats, TPE Balls & TPE Diaphragm

D32977 – Husky 307 PP 3/8″ NPT Standard Pump, PP Center Section, PP Seats, BN Balls & BN Diaphragm

D32311 – Husky 307 PP 3/8″ NPT Standard Pump, PP Center Section, SS Seats, PTFE Balls & PTFE Diaphragm

Part of the Husky 307 air-operated double diaphragm pump family. Additional configurations available with different seat, ball, and diaphragm materials.

Reference Manuals

300627 (Page 10) Ink manufacturing and printing solutions