Vertical Twin Screw Pump

About Products

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 1500 m³/hr
Pressures up to 40 bar

Material Options

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

Accessories

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.

Sealing Options

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’

ROTO SEAL CODE ‘R’

ROTO SEAL CODE ‘S’

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

Welcome to Roto Pumps

Vertical Twin Screw Pump

About Products

Vertical Internal / External Bearing RV series

Material Options

Accessories

Sealing Options

Industries

Paper Industry

Sugar Industry

Oil & Gas Industry

Edible Oil Industry

Marine Industry

Power Plant Industry

Pharma Industry

Fertillizers Industry

Twin Screw Pumps