15
Self-venting pump head.
Self-venting pump head must be used when using chemicals that produce
gas (i.e. hydrogen peroxide, ammonium, sodium hypoclorite at particular conditions).
Hoses assembling procedure (including purge hose) is described in fig. (A).
Notes:
- suction, delivery and purge valves are DIFFERENT! Do not exchange them!
- delivery and purge hoses are made of same material!
- it’s allowed to lightly bend venting hose!
- during calibration procedure (“TEST”) insert venting hose into BECKER test-tube!
fig (D): pump head connections. fig (D1): PMMA pump head connections.
Flow direction is indicated by the arrow on the valves.