Home Parts Services Used Boilers Specials About Us Contact Us   Specials NEW Spirax Sarco Pressure Powered Pump in Stock Model 69419 3 x 2 inch  with Bronze check valves Less Gauge Glass Special Price $3000  Armstrong Steam Trap Repair Kits. Several pressure ranges available. Call (800) 546-5735 for very special pricing.  One Spence E Valve  6 inch 300 PSI Rebuilt $1500 "As is"  Main Menu Home Parts Services Used Boilers Specials Boiler Tips About Us Contact Us Search Home Boiler Tips Hand-Hole Crabs Tight? Hand-Hole Crabs Tight? After start-up, crabs should be re-tightened as pressure comes up and the gasket seats in. A loose crab on bottom or below water line can cause a boiler to drain on shutdown as steam pressure lowers to zero.   < Prev   Next > [ Back ]

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