Roto Twin Screw Pumps – Horizontal External Bearing Pump Long Shaft Design
External Bearing RE Pump
Capacities up to 1000 m3/hr
Pressures up to 40 bar
Horizontal External Bearing Twin Screw Pumps are suitable for handling fluids with different characteristics at different temperatures (up to 3500C / 6600F) .
These pumps are available in standard foot mounted & center-lined mounted configuration with or without steam jacketing arrangement.
Due to external bearing mounted design, the media does not come in contact with the bearings and thus ensures longer service life even with the corrosive or abrasive fluids. These pumps are built with relief valves, designed for 100% bypass. The suction and discharge ports are in-line.
The mechanical seals are provided as standard. Gland packing option can also be offered as per application requirement. Also, API 682 type mechanical seals can be offered.
Applications
Gauges (Pressure, Vacuum, and Differential):
These devices are especially important for the system with dynamic working characteristics, that require constant monitoring. The selection of gauge requires consideration of process, environment, accuracy, dial size, connection & mounting. It is advised to limit the normal working pressure to 25–75% of the scale of the gauge.
Relief Valves:
In addition to relieving excess pressure from closed-top vessels or piping systems, these normally closed valves provide system control benefits. It is versatile and widely utilized valve. Its compact size, ease of setting, readjustment and repeatability, all contribute to its popularity. The pressure setting is done manually.
Strainers:
A Strainer is an inexpensive “insurance” for protecting pumps. There is often unwanted matter present which can cause serious problems. Dust, foreign matter, or even clumps of product itself, can clog or damage critical & expensive equipment. Another factor to consider is the cost of downtime.
Facts & Figures
| ROTO SEAL CODE ‘N’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. |  |
| ROTO SEAL CODE ‘P’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. |  |
| ROTO SEAL CODE ‘R’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. |  |
| ROTO SEAL CODE ‘S’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. |  |
| ROTO SEAL CODE ‘V’ MEDIA PROPERTIES: High temperature high viscosity. |  |
Materials of Construction
CASING:
- Cast Iron, • Cast Steel, • Fabricated Steel • Fabricated Stainless Steel
LINER:
- Case Steel, • Stainless Steel
SCREWS:
- Alloy Steel • Stainless Steel, • Hardened Steel
TIMING GEARS:
- Hardened Steel
OTHER EXOTIC MATERIALS:
- Duplex • Super Duplex
SCREW SURFACE COATING:
- Hard Chrome Plating
Roto Twin Screw Pumps – Horizontal External Bearing Pump Long Shaft Design
External Bearing RE Pump
Capacities up to 1000 m3/hr
Pressures up to 40 bar
Horizontal External Bearing Twin Screw Pumps are suitable for handling fluids with different characteristics at different temperatures (up to 3500C / 6600F) .
These pumps are available in standard foot mounted & center-lined mounted configuration with or without steam jacketing arrangement.
Due to external bearing mounted design, the media does not come in contact with the bearings and thus ensures longer service life even with the corrosive or abrasive fluids. These pumps are built with relief valves, designed for 100% bypass. The suction and discharge ports are in-line.
The mechanical seals are provided as standard. Gland packing option can also be offered as per application requirement. Also, API 682 type mechanical seals can be offered.
Applications
Gauges (Pressure, Vacuum, and Differential):
These devices are especially important for the system with dynamic working characteristics, that require constant monitoring. The selection of gauge requires consideration of process, environment, accuracy, dial size, connection & mounting. It is advised to limit the normal working pressure to 25–75% of the scale of the gauge.
Relief Valves:
In addition to relieving excess pressure from closed-top vessels or piping systems, these normally closed valves provide system control benefits. It is versatile and widely utilized valve. Its compact size, ease of setting, readjustment and repeatability, all contribute to its popularity. The pressure setting is done manually.
Strainers:
A Strainer is an inexpensive “insurance” for protecting pumps. There is often unwanted matter present which can cause serious problems. Dust, foreign matter, or even clumps of product itself, can clog or damage critical & expensive equipment. Another factor to consider is the cost of downtime.
Facts & Figures
| ROTO SEAL CODE ‘N’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. | |
| ROTO SEAL CODE ‘P’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. | |
| ROTO SEAL CODE ‘R’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. | |
| ROTO SEAL CODE ‘S’ MEDIA PROPERTIES: Containing solids or with high viscosities, e.g. sugar, paper and waste water industry. | |
| ROTO SEAL CODE ‘V’ MEDIA PROPERTIES: High temperature high viscosity. | |
Materials of Construction
CASING:
- Cast Iron, • Cast Steel, • Fabricated Steel • Fabricated Stainless Steel
LINER:
- Case Steel, • Stainless Steel
SCREWS:
- Alloy Steel • Stainless Steel, • Hardened Steel
TIMING GEARS:
- Hardened Steel
OTHER EXOTIC MATERIALS:
- Duplex • Super Duplex
SCREW SURFACE COATING:
- Hard Chrome Plating
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