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| Model | INJECT HD 4 | 
| Pressure ratio | 30:1 | 
| Output per cycle | 43 ccm (1.4 fl.oz.) | 
| Max. inbound air pressure | 8 bar (116 psi) | 
| Max. operating pressure | 240 bar (3,481 psi) | 
| Order number | 0669679 | 
Mining
Building renovation
Pipes and pipelines
Building and corrosion protection
Tunnels
Building and civil engineering
The WIWA INJECT HD 4 and HD 5 are pneumatic 1K piston pumps characterized by large output and large valves. The spring-loaded packings make them particularly low-wear. The models are available on request in direct suction, suction line, hopper as well as with connection to a large container.
| Model | INJECT HD 4 | 
| Pressure ratio | 30:1 | 
| Output per cycle | 43 ccm (1.4 fl.oz.) | 
| Max. inbound air pressure | 8 bar (116 psi) | 
| Max. operating pressure | 240 bar (3,481 psi) | 
| Order number | 0669679 | 
Mining
Building renovation
Pipes and pipelines
Building and corrosion protection
Tunnels
Building and civil engineering