GRACO 24B781 – Husky 1590 SS Pump AL Center Section SS Seats PTFE Balls & PO Diaphragm

GRACO 24B781 – Husky 1590 SS Pump AL Center Section SS Seats PTFE Balls & PO Diaphragm

Industrial pump component featuring aluminum construction with stainless steel seats and PTFE balls for reliable performance in demanding industrial applications. Part of GRACO’s Husky pump series designed for consistent fluid handling.

The Husky 1590 air-operated diaphragm pump features a patented, high-reliability closed center air valve that is online serviceable and an epoxy-coated air section for tough environmental conditions.

Up to 5 times longer diaphragm life compared to other air operated diaphragm pumps in its class

Expanded material offering to handle endless applications

Fewer parts than industry peers, the air valve is externally accessible so it can be serviced quickly and easily without uninstalling the diaphragm pump

Offered in ATEX configuration.

1-1/2 in. (38.1 mm) ANSI end-porting

High flow – 100 gpm (378 lpm) in a compact, portable size

Fluid pressure to 120 PSI (8.4 bar, 0.84 MPa)

Lube-free operation

Available in polypropylene, aluminum and stainless steel

Epoxy-coated air section for tough environmental conditions

Additional Specifications

Material: Aluminum (AL) motor, stainless steel (SST) fluid section and seats, PTFE balls

Pump Size: 1.5 in

Air Motor: C aluminum (remote)

Fluid Section: 3 (aluminum), 4 (sst), 5 (not used), 7 (sst 3.1 Cert.)

Seats: 3 (316 sst), 4 (17-4 sst), 5 (TPE), 6 (Santoprene), 7 (Buna-N)

Balls: 3 (not used), 4 (440C sst), 5 (TPE), 6 (Santoprene), 7 (Buna-N)

Diaphragm Type: overmolded diaphragms

Diaphragms: 3 (not used), 4 (not used), 5 (TPE), 6 (Santoprene), 7 (Buna-N)

Air Exhaust Port Size (in)	3/4
Air Exhaust Port Thread Gender	Female
Air Exhaust Port Thread Type	NPT
Air Inlet Size (in)	1/2
Air Inlet Thread Gender	Female
Air Inlet Thread Type	NPT
Application	Industrial
Ball Material	PTFE
Center Section Material	Aluminum
Compatible Material	Antifreeze, Detergents, Motor Oil, Hydraulic Fluid, Cutting Oil, Water – Wastewater Transfer
Connection Type	Threaded
Diaphragm Material	PTFE Overmold
Fluid Inlet Size (in)	1-1/2
Fluid Inlet Thread Gender	Female
Fluid Inlet Thread Type	NPT
Fluid Outlet Size (in)	1-1/2
Fluid Outlet Thread Gender	Female
Fluid Outlet Thread Type	NPT
Fluid Section Material	Stainless Steel
Manifold Configuration	End Port
Manifold O-Ring Material	PTFE
Material	Stainless Steel
Maximum Air Consumption (SCFM)	125
Maximum Air Pressure (MPa)	0.8
Maximum Air Pressure (psi)	120
Maximum Cycle Rate (CPM)	200
Maximum Flow Rate (GPM)	100
Maximum Fluid Pressure (MPa)	0.8
Maximum Fluid Pressure (psi)	120
Maximum Operating Temperature (°F)	150
Maximum Solid Size (in)	0.1875
Power Source	Air
Seat Material	Stainless Steel
Standards Met	ATEX, CE
Type	Pneumatic Diaphragm Pump
Weight (lb)	71

Features

1.5 inch pump size for medium flow applications

Aluminum air motor for lightweight durability

Stainless steel fluid section for corrosion resistance

Stainless steel seats for wear resistance

PTFE balls for chemical compatibility

NPT threading for standard connections

Applications

Industrial fluid transfer

Chemical processing

Manufacturing operations

Medium flow rate applications

Compatible Equipment

1.5 inch Husky pumps

Husky 1590 Series A pumps

Related Parts

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24B760 – Husky 1590 PP Pump AL Center Section PP Seats PTFE Balls & PO Diaphragm, End Flange

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24G411 – Husky 1590 (1.5 in. BSPT) AL Pump, AL Center Section, SS Seats, PTFE Balls & PO Diaphragm

24J958

24J859 – Reinforced PTFE V-Packing Kit for Merkur Bellows LB100A & LB100B

26D450

24J358 – Husky 1590 (1.5″ NPT) AL Pump, AL Center Section, SS Seats, PTFE Balls & PO Diaphragm

24J359

25A017 – Husky 1590 AL Pump, AL Center Section, SS Seats, SS Balls & PO Diaphragm

Part of GRACO’s industrial pump series with PTFE/EPDM overmolded diaphragms. Temperature range 40°F to 180°F (4°C to 82°C). Upgrade kits available for enhanced performance. This is a complete pump model. Related parts include other pumps with overmolded diaphragms and various center section/manifold port configurations. This is a diaphragm pump configuration. The matrix shows this as ‘sst (standard)’ type. For EN 10204 Type 3.1 certification, add ‘C31’ to model number. Refer to pages 27-28 for replacement parts.

Reference Manuals

338940 (Page 2) PTFE/EPDM Overmolded Diaphragms

308441 (Page 3) Husky 1590 Air-Operated Diaphragm Pumps