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Vertical Twin Screw Pump
Roto’s Vertical Twin Screw Pumps are available in both external & internal bearing configurations. These pumps are designed to suit the applications where space is a constraint. These pumps can handle fluids with high temperatures up to 3500C / 6600F with or without steam jacketing. Electrical/steam tracing arrangement is available as an option.
The mechanical seals are provided as standard. Gland packing option can also be offered as per application requirement. Also, API 682 type seals can be offered.
These pumps are built with relief valves, designed for 100% bypass. The suction & discharge ports are in-line.
Vertical Internal / External Bearing RV series
Capacities up to 940 m3/hr
Pressures up to 16 bar
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
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.
ROTO SEAL CODE ‘N’
MEDIA PROPERTIES: Containing solids or with high viscosites, e.g. sugar, paper and waste water industry.
APPLICATIONS: Oil, sewage water, clean water, corrosive applications, oil water separation and food applications.
DESCRIPTION: Single acting, unbalance, bi-directional and wave spring.
PRESSURE RANGE: Up to 25 bar
ROTO SEAL CODE ‘P’
MEDIA PROPERTIES: Containing solids or with high viscosites, e.g. sugar, paper and waste water industry.
APPLICATIONS: Oil, sewage water, clean water, corrosive applications, oil water separation and food applications.
DESCRIPTION: Single acting, unbalance, bi-directional and wave spring,
PRESSURE RANGE: Up to 25 bar
ROTO SEAL CODE ‘R’
MEDIA PROPERTIES: Containing solids or with high viscosites, e.g. sugar, paper and waste water industry.
APPLICATIONS: Oil, sewage water, clean water, corrosive applications, oil water separation and food applications.
DESCRIPTION: Single acting, unbalance, bi-directional and multiple spring,
PRESSURE RANGE: Up to 25 bar
ROTO SEAL CODE ‘S’
MEDIA PROPERTIES: Containing solids or with high viscosites, e.g. sugar, paper and waste water industry.
APPLICATIONS: Oil, sewage water, clean water, corrosive applications, oil water separation and food applications.
DESCRIPTION: Single acting, unbalance, bi-directional and multiple spring.
PRESSURE RANGE: Up to 25 bar
ROTO SEAL CODE ‘V’
MEDIA PROPERTIES: High temperature high viscosity.
APPLICATIONS: Refinery duties, bitumen and asphalt.
DESCRIPTION: Single acting, balance, bidirectional, metal bellow.
PRESSURE RANGE: Up to 12 bar
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