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100 GPM Internal Bypass Relief Valve Pump – Tri-Rotor Model 120AX
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Tri-Rotor Pump model 120AX, which shares common components with model 80BX and model 100CX, is in the second to the largest family of Tri-Rotor bypass head pumps that incorporate an internal relief valve and provide constant flow rates. The oversized relief valve bypasses full flow directly from the discharge to the suction port when the set discharge pressure is achieved. Discharge may be restricted or blocked entirely without shock or chatter. The pump serves a wide range of industrial markets and applications. Examples of the 120AX model’s diverse applications include pumping melamine resin, polymer, potting compound, soap constituents, and chicken fat.
The pump is designed with top suction and side discharge flanged ports and is available in both clockwise (CW) and counterclockwise (CCW) rotations for pump installation flexibility. Materials of construction for the 120AX model include Iron Fitted, All Iron, Bronze Fitted, or All Bronze configurations. Two drain plugs, located on the shaft housing, are provided with every pump.
The pump is designed with top suction and side discharge flanged ports and is available in both clockwise (CW) and counterclockwise (CCW) rotations for pump installation flexibility. Materials of construction for the 120AX model include Iron Fitted, All Iron, Bronze Fitted, or All Bronze configurations. Two drain plugs, located on the shaft housing, are provided with every pump.
Specifications of the Tri-Rotor Bypass Head Pump Model 120AX:
- Flow rate: 19 to 102 GPM
- Viscosity range: 410 to 650,000 cPs (2,000 to 3,000,000 SSU)
- Inlet and Discharge Port size: 4” Flanged Top Suction and 3” Flanged Side Discharge Ports
- Operating temperature range: -40 °F to 650 °F
- Maximum operating pressure: 100 PSI
- Pump displacement per revolution: 0.148 gal/rev
- Pump speed range: 150 to 610 RPM
- Solids passage available: 0.037 in.
Configure Your 120AX Bypass Head Pump
Part Number:
120AX
Quantity:
Technical Information
Accessories
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As with all Tri-Rotor pump models, the 120AX is available with a Steam Jacketed option for fluids requiring to be heated or cooled in order to be pumped. Tri-Rotor also offers an interesting option for its’ 120AX bypass head design: a Reduced Stroke Pump Head. With this option, the pump can be designed to target a specific flow rate at a percentage of full flow.
Other Options for the Bypass Head Pump Model 120AX:
- Other Materials of Construction options:
- Shaft: Steel (std.), Stainless Steel, or Hardened Stainless Steel
- Piston: Iron (std.), Bronze, or Steel
- Bypass Head Gasket options:
- Standard {to 250 °F (121 °C)}
- Heat Resistant {to 650 °F (345 °C)}
- Shaft length: “M” (15-1/4”) (std.), “T” (12-3/4”), “MO” (15-1/4”), or “BD” (15-1/4”)
- Shaft seal and lubrication:
- Packing options (grease fitting provided):
- Teflon Impregnated Packing (std.) {to 550 °F (288 °C)}
- FDA Food Grade (PTFE) Packing {to 500 °F (260 °C)}
- Heat Packing {to 650 °F (345 °C)}
- Zero-Leak #3 (Beaded) Packing {-40 °F to 500 °F (-40 °C to 260 °C)}
- Zero-Leak #30 (Non-Beaded) Packing {-40 °F to 500 °F (-40 °C to 260 °C)}
- Mechanical seal options (oil cup provided):
- Type 1 Mechanical Seal – Viton {-40 °F to 300 °F (-40 °C to 150 °C)}
- Type 1 Mechanical Seal – Buna {10 °F to 180 °F (-10 °C to 80 °C)}
- Packing options (grease fitting provided):
- Bypass Head Spring options:
- Standard {10 PSI to 65 PSI}
- Heavy Duty {20 PSI to 100 PSI}
- Extra Heavy Duty {40 PSI to 145 PSI}
- Shuttle design: Block (std.) or Formed
- Relieved Rotor Group (for higher viscosities: >10,000 SSU/2,150 cPs)
- Sanitary Preparation of pump internal components for food applications
- Grease feeder available for shaft lubrication on pumps with packing
- Exterior Protection: Orange Paint (std.), Black Paint, White Lacquer, or 316SS Epoxy Coating
The bare weight of the pump is approximately 126 lbs. The estimated shipping weight is 159 lbs.
Besides offering just a bare pump only for the Model 120AX, Tri-Rotor offers a complete mounted pump system, including motor drive assembly and mounting. Replacement parts for all Series 120 pumps can be found here.