Hydraulic Reciprocating Diaphragm Pump

Hydraulic reciprocating diaphragm pump developed specially for transferring coal slurry and high temperature, high corrosive slurry such as alumina, nickel sulfate in coal chemical industry and wet-method metallurgical process; also used for mud, slag, sewage water, and toxic, flammable, explosive, corrosive or non-corrosive products in petroleum, chemical, and electric power industries.
9 patents for diaphragm pump technologies:
- Diaphragm rupture signaling device (Patent No. 89213068.7)
- Diaphragm-limited oil compensating device (Patent No. 90214975.X)
- Tubular hydraulic diaphragm pump (Patent No. 90214976.8)
- Separation type reciprocating hydraulic diaphragm (Patent No. 200320104721.4)
- Equalizing flow cylinder assembly of diaphragm pump for delivering sediment
(Patent No. 200420060539.8)
- Staggered cylinder reciprocating pump (Patent No. 200410022587.2)
- Cylindrical anti-damper for reciprocating positive placement pump
(Application No. 200620110122.7)
- Rubber-metal combination valve for slurry pump (Application No. 200620110121.2)
- Gas-liquid contact type safe-charging damper for reciprocating positive placement pump
(Application No. 2006201100639.6)
-          Bag-type diaphragm with rupture alarm for reciprocating pump (Application No. 200620110040.9)
The pump has two types --- horizontal single-acting and double-acting. The diaphragm separates the slurry pumped from hydraulic chamber, effectively increasing the service life of plunger (position) and packing. The diaphragm rupture signaling device prevents metered and hydraulic fluids from intermixing in case of diaphragm rupture. Under all operating conditions, the rupture of the diaphragm is reliably signaled. With appropriate wiring, the pump may be shutdown. The system remains leaktight even in case of a diaphragm rupture.
Single, duplex, and triplex diaphragm pumps are available. Capacity ≤800 m3/h, max. working pressure ≤25 MPa, slurry temperature 200, particle size 8 mm, concentration ≤75%.
According to individual customer requirements, safety valve, damper, check valve, circulating valve, diaphragm rupture signaling device, and control panel can be supplied in full set.