ME825-6 3/4" HIGH FLOW GLOBE VALVE

Marshall Excelsior offers three types of globe and angle valves (standard, integrated pilot feature (P) or integrated back check feature (IBC)) depending on the intended application. All Marshall Excelsior globe and angle valves are designed to withstand extreme temperatures and can increase flow up to 70 percent over a standard globe valve. The 35 degree seat angle on the 1-1/4” and larger globe valves make them ergonomically designed for bobtail, transport and bulk plant applications. This 35 degree seat angle also allows up to 70 percent more flow. The 1-1/4” and larger globe and angle valves have an optional 360 degree rotating ME829 E-ZTurn knob

To increase the longevity of the seal, all Marshall Excelsior globe and angle valves have a 360 degree rotating seal that stops rotating when it contacts the sealing surface while the valve continues to be tightened. The 1-1/4” and larger models feature ball bearings to facilitate increased seal life.

All 1-1/4” and larger globe and angle valves come with an upstream and downstream plugged port. The boss of these ports are large enough to drill and tap a 3/4” FNPT hole for a jumper line or standard by-pass valve.

These valves are mainly used in piping systems to control liquid or vapor flow in bulk plants, bobtails, transports, pumps or compressors. Globe valves are designed to be installed in a straight section of piping and angle valves are designed to be installed when a 90 degree directional change is needed in the piping.

Change the sealing compound and Marshall Excelsior’s globe and angle valves can be used in numerous industries including, but not limited to LP-Gas, anhydrous ammonia, petrochemical and chemical applications. The standard seal compound is Nitrile with PTFE or FKM also available.

Marshall Excelsior valves are designed to be hand tightened. Using wrenches or excess force to open or close the valve can cause damage to the seal, decreasing the valve’s life.

Installation Note: Before installing a globe or angle valve, the piping system and container must be free of dirt, debris, foreign matter and other particles, large or small, that could damage the sealing surface or seal of the valve. A minimal amount of pipe sealant should be used on the mating part. Excess pipe sealant can also cause damage to the seal surface or seal. Damage to the sealing surface or the seal will cause the valve to leak.

To avoid damage to the valve or piping, due to pressure build-up from temperature changes, a hydrostatic relief valve should be installed where liquid can be trapped between two shutoff valves.

A vent valve should be installed on the downstream side of the globe or angle valve if the angle valve is used as a shutoff valve at the end of a loading hose. This allows the operator to vent the trapped liquid before disconnect.

Features:

• All stainless steel internal components with rotating seat disc design & V-cup PTFE packing stem seals
• Double stem seal design ensures leak free operation
• Double lead stem thread ensures quick and efficient operation
• Durable ductile iron valve body with automotive grade powder coat finish
• 1-1/4” & larger globe valves have 35° seat angle for maximum product flow
• 1-1/4” & larger globe valve designed ergonomically correct for bobtail transport and bulk plant applications
• 1-3/4”, 2-1/4” & 3-1/4” Acme threads available on globe valves
• Rated for 400 WOG
• Operating temperature –40° to +212° Fahrenheit