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

GRACO D31255 – Husky 307 AC 3/8″ NPT Standard Pump, PP Center Section, AC Seats, TPE Balls & TPE Diaphragm, 100 PSI

Husky 307 air-operated double diaphragm pump component featuring polypropylene construction with acetal seats and Hytrel balls and diaphragm. This pump delivers reliable performance for demanding fluid transfer applications with excellent chemical compatibility and corrosion resistance.

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 air pressure operating range

Material: Polypropylene construction with acetal seats

Displacement Per Cycle: 0.02 gallon (0.076 liter)

Max Air Consumption: 6 scfm

Max Pumpable Solids: 0.006 in (1.5 mm)

Temperature Range: PTFE 220°F, Buna-N 180°F, Hytrel 150°F

Sound Level: 75 dBa

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	TPE
Center Section Material	Polypropylene
Compatible Material	Antifreeze, Detergents, Motor Oil, Hydraulic Fluid, Cutting Oil, Water – Wastewater Treatment, Water, Ink
Connection Type	Threaded
Diaphragm Material	TPE
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
Overall Height (in)	8.13
Power Source	Air
Seat Material	Acetal
Standards Met	ATEX, CE
Type	Pneumatic Diaphragm Pump
Weight (lb)	5.25
Wetted Material	Acetal, Polypropylene, TPE, PTFE

Features

Air-operated double diaphragm design for reliable operation

Polypropylene construction for chemical resistance

Acetal seats for durability

Hytrel balls and diaphragm for flexibility and chemical compatibility

Self-priming capability

Can handle solids up to 0.006 inches

Applications

Chemical transfer applications

Corrosive fluid handling

Industrial fluid transfer

Applications requiring chemical compatibility

Compatible Equipment

Husky 307 pump series

Related Parts

D31277 – Husky 307 AC 3/8″ NPT Standard Pump, PP Center Section, AC Seats, BN Balls & BN 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 series ordering matrix. Consult Process Equipment Buyer’s Guide (300435) for additional configurations.

Reference Manuals

300627 (Page 10) Ink manufacturing and printing solutions