Protek Diaphragm Primer DP7

Protek DP7 Diaphragm Primer contains a rubber diaphragm working in an aluminum chamber. A levered handle attached to it by a connecting rod actuates the diaphragm. Air is drawn into the chamber through a suction valve on the up-stroke and discharged through a discharge valve on the down-stroke. Primer body is of a light weight aluminum alloy. The Diaphragm is of molded Rubber, extremely tough and long wearing. A rubber air discharge valve, built into the diaphragm, provides a positive seal.
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