Sandpiper HDF2-A pumps utilize a Heavy Duty Flap Valve. The HDF2-A model is an air-operated double diaphragm pump Design Level 6. This version offers superior solids handling ability and is recommended for suspended and non-suspended solids as well as abrasive slurries. It is also available in a dual port design.
Features of the Sandpiper HDF2-A pump are:
- Displacement Per Stroke: 0.43 gallon / 1.60 liter
- Maximum Flow: 140 gallon / 530 liter per minute
- Maximum Discharge Pressure: 125 PSI / 8.6 BAR
- Maximum Solids Handling: 2.0 in. / 50 mm
- Fluid Connections Intake and Discharge: 2.0 in. / 50 mm NPTF
- Air Inlet: ¾ in. / 19 mm NPTF
- Air Exhaust: ¾ in. / 19 mm NPTF
- Maximum Discharge Head: 289 ft. / 88 meters
Sandpiper HDF2-A pumps are available in a range of material options to meet different chemical chemical handling requirements. Pumps using Hytrel are good with bases, acids and glycols. Maximum operating temperature for Hytrel pumps is 190º F / 88º C. Pumps utilizing FKM (Fluorocarbon) provide resistance to solvents, and vegetable or animal oils. The maximum operating temperature for FKM is 212º F / 100º C.
Other available materials include EPDM, Urethane, Santoprene and Nitrile. This Sandpiper pump is designed to function without lubrication. However, pumps will work with lubricated compressed air.
Sandpiper HDF2-A pumps meet certification requirements for Environmental Management System ISO14001 and ISO9001. An 8-foot ground strap is available for suppressing electrical sparks. All pumps have a 5-year Limited Warranty against defective workmanship and materials.