Steam Jacketed Tri-Rotor Pumps

All models of Tri-Rotor pumps (with the exception of the Series 20CP models) are available in jacketed construction for circulating steam* or heat transfer fluids around the walls of the pump to control pumpage temperature and/or viscosity.

Steam introduced into the jacket holds the pumpage at elevated temperature, for liquids such as asphalt and corn syrup, which congeal or harden when the pump cools off after shutdown; steam will heat the pump sufficiently to liquefy the pumpage and permit easy start-up.  When piping in a fluid system that is steam traced, the jackets make it possible to integrate the pump into the steam side of the system.  Steam is often used in outdoor pumping installations during winter.

Heat Transfer Fluids are circulated through pump jackets when pumpage temperatures are above those economically attainable or when steam is not available.

Coolants such as water are circulated in jackets of pumps handling shear sensitive pumpages which degrade or congeal due to heat generated by the pumping action.

The following drawings are available and show the principal dimensions of jacketed pumps and position and thread size of steam ports:

• J4549 – Models 20DV – 20DX – 20D.  The jacket in this series is integral with the body of the pump and extends over the stuffing box portion.  Because so much of the pump is shrouded, in relation to its size, there is no necessity for jacketing the heads.

• J5850 – Models 40AX – 40A.  These pumps also have the jacket integrally cast over the entire body and stuffing box portion and jackets on the bypass and solid heads are not required.

• J6219 – Model 80BV.  Full jacketing on this variable volume pump consists of the shaft housing and control head.  The jacketed control head is offered in clockwise (CW) rotation only and can be equipped with manual (MFC), Vernier (VFC) and locking manual (LKMFC) flow controls.

• J6102 – Models 80BX – 80B.  In these models, shaft housings, bypass and solid heads are available with jacketed construction.  The body need not be jacketed.

• J6103 – Model 100CV.  In this variable volume pump the shaft housing and control head (CW rotation only) are jacketed and can be equipped with the same flow controls as the model 80BV pump.  The jackets and controls are interchangeable on the model 120AV pump (equipped with 4” flanged top suction port x 3” flanged side discharge port), however the shaft housing and control head (CW only), as well as their respective steam port locations, are rotated 90o from positions depicted.

• J6101 – Models 100CX – 100C.  In these pumps, the shaft housings, bypass and solid heads are available in jacketed construction.  Models 120AX and 120A pumps are likewise jacketed with steam port locations rotated 90o from positions depicted.

• J6100 – Models 200AV – 200AX – 200A.  In this series, jacketed shaft housings, bypass and solid heads can be furnished.  These jackets are interchangeable on models 220TX and 220T pumps (equipped with 4” flanged top suction port x 4” flanged side discharge port); however their respective steam port locations are rotated 90o from positions depicted.  The variable volume pumps, models 200AV and 220TV, can only be fitted with jacketed shaft housings.

All jacketed pumps are supplied with heat resistant gaskets as standard.

* Extra precautions must be taken when installing a steam jacketed pump, due to greater chance of pipe strain causing distortion and misalignment of the pump.  Particularly note, overtightening of steam lines can crack the jacket (the larger pipe wrenches employed for making up lines into main pump ports should not be used for connections to the steam ports).  During operation suitable measures should be taken to avoid or minimize corrosion and rusting inside the jackets.

If you have any questions about Tri-Rotor’s steam jacketed pumps, feel free to contact us.