0.375 inch High Purity Pumps
Chemical transfer pumps with 3/8 inch (9.5 mm) connection available in PTFE and UHMWPE
ChemSafe 307 Air-Operated Double Diaphragm Pumps
Description
Graco’s ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There’s no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chemical compatibility requirements. Plus they’re dead-head capable and achieve high flow rates while minimizing air consumption and operational noise.
Features
- Max flow rate of 7.9 gpm (30 lpm)
- High quality machined design provides a precision fit and superior chemical containment compared to moulded pumps
- Corrosion-resistant exterior with no exposed metal reduces maintenance, extends pump life and offers clean, safe operation
- Removable air motor offers easy and intuitive maintenance ensuring maximum pump performance and availability
- Ideal for corrosive and abrasive liquids such as acids, fuels, glues, paints, resins, inks, or wastewater
Materials
- Antifreeze
- Gelcoats
- Asphalts
- Polyurethane
- Windshield Washer Fluid
- Diesel Exhaust Fluid (DEF)
- Detergents
- Water – Wastewater Treatment
- Water – Wastewater Transfer
- Food & Personal Care
- Inks and Colorants
Features
- Chemical Transfer
- Medium-Viscosity Material Transfer
- Low-Viscosity Material Transfer
- Ink Transfer
Specifications
| ChemSafe 307 Diaphragm Pump | |
| Maximum fluid working pressure |
0.69 MPa, 6.9 bar
|
| Minimum air startup pressure |
0.21 MPa, 2.1 bar
|
| Fluid inlet and outlet size |
3/8 bspt
|
| Maximum suction lift (reduced if balls don’t seat well due to damaged balls or seats, lightweight balls, or extreme speed of cycling) |
Wet: 9.5 m, Dry: 3 m
|
| Maximum size pumpable solids |
2 mm
|
| Minimum recommended ambient air temperature for operation and storage. NOTE: ChemSafe pumps may be operated in low-temperature environments. Take care to avoid freezing or crystallization of the fluid inside or outside of the pump. Running the pump at temperatures below freezing may accelerate the wear of the elastomer components in the pump. |
0° C
|
| Air consumption at maximum flow |
0.26 scmm
|
| Fluid flow per cycle |
0.04 liters
|
| Maximum free-flow delivery |
25.4 lpm
|
| Maximum pump speed |
610 cycles per minute
|
| Weight |
2.7 kg
|
| Wetted Parts |
PTFE, EPDM, NBR, UHMWPE
|
| Maximum fluid temperature | |
| PTFE Pumps |
100° C
|
| UHMWPE Pumps |
70° C
|
| Noise (dBa), Sound power was measured per ISO-9614–2: 1997. Sound pressure was tested 3.28 ft (1 m) from the equipment. | |
| Sound Power | |
| At 100 cycles per minute |
51.7 dBa
|
| At 610 cycles per minute |
58.1 dBa
|
| Sound Pressure | |
| At 100 cycles per minute |
61.5 dBa
|
| At 610 cycles per minute |
67.7 dBa
|
