Samson Pump Master 4, 5:1 Ratio Universal Stub Pump
The Pump Master 4 5:1 pump from Samson is a double acting air operated medium pressure utility pump for dispensing lubricants in medium to large-size installations that include multiple outlets with simultaneous operations. Built for durability, the Pump Master 4 is a time proven and reliable air motor that withstands the most adverse working conditions. A height-adjustable 2 in. NPTM bung adaptor for drum and tank bung mounting is included. The Pump master 4 also features a built-in pressure relief port for an optional pressure relief valve (not included).
When using this product in an outdoor application, consider purchasing pressure relief valve RON609007 for use in this system.








