Product Description
Graco Husky 307 air-operated double diaphragm (AODD) pump, part number D31311, acetal fluid section and polypropylene center section, with Stainless Steel seats, PTFE balls and a PTFE/EPDM 2-Piece diaphragm. Fluid ports are 3/8 in. (9.525 mm) NPT, end port. Maximum free-flow delivery 6.5 gpm (24.6 lpm) at up to 100 psi (6.9 bar) fluid pressure.
Technical Specifications
- Brand
- Graco
- Range
- Husky 307 (air-operated double diaphragm), 3/8 in.
- Part number
- D31311
- Fluid section material
- acetal
- Center section material
- polypropylene
- Seat material
- Stainless Steel
- Ball material
- PTFE
- Diaphragm material
- PTFE/EPDM 2-Piece
- Manifold o-ring material
- PTFE
- Manifold configuration
- end port
- Maximum fluid working pressure
- 100 psi (6.9 bar)
- Maximum free-flow delivery
- 6.5 gpm (24.6 lpm)
- Maximum pump speed
- 330 cpm
- Maximum size pumpable solids
- 0.0625 in (1.5875 mm)
- Maximum operating temperature (Graco product page)
- 150 degF (66 degC)
- Maximum air consumption
- 5.5 scfm
- Maximum air pressure
- 100 psi (6.9 bar)
- Air inlet size
- 1/4 npt(f)
- Fluid inlet and outlet size
- 3/8 in (9.525 mm) npt(f)
- Weight
- 5.25 lb
- Standards met
- ATEX, CE
Standards & Compliance
- Material
- Acetal (fluid section)
- Thread Standard
- NPT
- Pressure Rating
- 100 psi (6.9 bar)
- Temperature Range
- Maximum operating temperature 150 degF (66 degC) per the Graco product page
- HS Code
- 8413.81
Compatibility & Fitment
Husky 307 series, 3/8 in. air-operated double diaphragm pump — the smallest pump in the Husky AODD range; the next size up is the 1/2 in. Husky 515. Seat, ball and diaphragm materials are selected by configuration; confirm fluid compatibility before ordering.
Product Documentation
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Catalogue entry last verified: 2026-08-20. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy D31311?
- D31311 can be ordered from cballast.com as a Graco catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Graco product?
- The manufacturer part number is D31311.
- What is the HS code for D31311?
- The customs tariff (HS) code for D31311 is 8413.81.
- Who manufactures D31311?
- D31311 is a Graco product in the Pumps range.
- Is a datasheet available for D31311?
- Yes — the D31311 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for D31311?
- The minimum order quantity is 1.
- Is D31311 available?
- Yes — D31311 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).