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SKU PD05A-ASS-STT-B-KIT
ARO
ARO 12 GPM Diaphragm Fluid Transfer Pump, 1/2" , Air Operated (Constructed of Stainless & Santoprene)
$2,799.00
In stockAn air-operated 1/2 in. double-diaphragm transfer pump supplied as a plumbed kit with ball valves, a regulator, gauge and fittings already assembled. Fluid ports are 1/2 in. NPT with a 1/4 in. FNPT air inlet, maximum operating pressure is 100 psi, and the pump self-primes 10 ft dry and 15 ft wet. Part reference PD05A-ASS-STT-B-KIT; an air supply of 8 CFM or more is recommended.
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Description
An ARO air-operated double-diaphragm (AODD) fluid transfer pump, 1/2 in., supplied as a fully plumbed kit under part reference PD05A-ASS-STT-B-KIT.
An AODD pump has no motor and no rotating seal. Compressed air alternately pressurises two air chambers, the diaphragms displace fluid in the matching fluid chambers, and ball checks hold the flow one-way. That makes it self-priming, able to run dry without damage, and stallable against a closed discharge — which is why it is the usual choice for solvent transfer, drum decanting and any duty where the discharge may be valved shut. This model uses a lube-free differential air valve and a Simulshift pilot valve, so no in-line air lubricator is required.
- Type: air-operated double-diaphragm pump, 1/2 in.
- Fluid inlet / outlet: 1/2 in. NPT, multiport manifold
- Air inlet: 1/4 in. FNPT
- Maximum operating pressure: 100 psi
- Check valve type: ball
- Maximum solids diameter: 3/32 in.
- Self-priming: 10 ft dry, 15 ft wet
- Pump dimensions: 13.75 in. L x 7.5 in. W x 11.625 in. H
- Recommended air supply: 8 CFM or greater
Supplied in the assembled kit
- 1 x ARO 1/2 in. diaphragm pump
- 1 x Superlok 210 series compression ball valve, 1/4 in.
- 2 x Superlok 210 series compression ball valve, 1/2 in.
- 1 x Superlok 210 series FNPT ball valve, 316 stainless, 1/4 in.
- 1 x 3-way street tee, FNPT x MNPT x MNPT, 1/4 in.
- 1 x street elbow, MNPT to FNPT, 1/4 in. x 1/4 in.
- 2 x hex nipple union, MNPT x MNPT, 1/4 in. x 1/4 in.
- 1 x Superlok SMC connector, O.D. tube x MNPT, 1/4 in.
- 2 x Superlok SMA connector, MNPT x O.D. tube, 1/2 in.
- 2 x Superlok 1/2 in. hose barb x 1/2 in. tube stub
- 1 x Superlok SRUT reducing tee, 1/2 in. x 1/4 in.
- 1 x Norgren regulator, 1/4 in.
- 1 x pressure gauge
- 1 x ColorConnex air connector
Wetted-material note: the product title specifies a stainless steel and Santoprene build, but the specification table inherited from the original supplier listing shows polypropylene housings — those two do not agree. Confirm the wetted-material configuration with us against your solvent before ordering rather than working from either figure.
Frequently asked questions
What is included in the kit?+
The 1/2 in. ARO diaphragm pump plus the plumbing package: four ball valves (two 1/2 in. compression, one 1/4 in. compression, one 1/4 in. 316 stainless FNPT), a 3-way street tee, street elbow, two hex nipple unions, Superlok tube connectors and hose-barb tube stubs, a 1/2 in. x 1/4 in. reducing tee, a Norgren 1/4 in. regulator, a pressure gauge and a ColorConnex air connector — assembled.
What air supply does it need?+
The air inlet is 1/4 in. FNPT and the maximum operating pressure is 100 psi. A compressor delivering 8 CFM or more is recommended. The air valve is lube-free, so an in-line air lubricator is not required.
What are the wetted materials?+
This needs confirming before you order. The product title specifies stainless steel and Santoprene, while the specification table carried over from the original supplier listing shows polypropylene housings and polypropylene check seats — the two sources contradict each other. Ask us to confirm the actual build against your solvent rather than assuming either one.
Will it self-prime?+
Yes — 10 ft dry and 15 ft wet. Like all air-operated double-diaphragm pumps it can also be run dry without damage and stalled against a closed discharge valve.
Can it handle solids or slurries?+
It uses ball check valves with a maximum solids diameter of 3/32 in. Anything larger will jam the check balls.
What is the maximum flow rate?+
The listing is inconsistent here — the title states 12 GPM and the inherited specification table states 14 GPM. We are not going to publish a figure we cannot stand behind: ask us to confirm the rated flow for this specific part number before you size a system around it.
Related products
ARO 14 GPM Diaphragm Fluid Transfer Pump, 1/2" , Air Operated (Constructed Of Polypropylene & Santoprene)
An air-operated 1/2 in. double-diaphragm transfer pump with polypropylene housings and Santoprene diaphragms and balls, rated to 14 GPM maximum flow and 150°F maximum fluid temperature. Fluid ports are 1/2 in. NPT, the air inlet is 1/4 in. FNPT, maximum operating pressure is 100 psi, and it self-primes 10 ft dry and 15 ft wet. Available as the bare pump or as a fully assembled kit with valves, regulator, gauge and fittings.
