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Roto MR/RM are based on classical design retaining its compact and robust construction. These pumps have combined bearing and pump housing and incorporate hollow shaft which accommodates the coupling rod, thereby reducing overall length of the pump. Standard sealing arrangement is in gland packing; however these pumps can also be supplied with mechanical seals.

These pumps are available in both free molded and molded to metal stator designs. The maximum pressure for Free Molded pump is up to 9 Bar and for molded to metal up to 12 Bar.

WETTABLE HOUSING COMPONENTS:
• Cast Iron

STATOR:
• Natural, • Nitrile, • High Nitrile

ROTOR:
• Tool Steel • Case Hardened Steel, • Alloy Steel • Stainless Steel

SHAFT:
• Alloy Steel • Stainless Steel

ROTOR SURFACE COATINGS:
• Ceramic Coatings • Tungsten Carbide • Hard Chrome Plating

COUPLING ROD:
• Alloy Steel, • Stainless Steel

Dry Running Protection Device:

To prevent the stator damage due to dry running specially developed temperature sensor is screwed into the stator wall to monitor the operating temperature. Due to any reason if the pump runs dry, the stator temperature will increase. Roto DRP would switch off the pump at pre set temperature.

Pressure Switch:

To prevent the pump from damage due to over pressurization in the discharge as well as low pressures beyond the capability of the pump. This system trips the pump and protects the pump as well as the system.

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 ‘M’

MEDIA PROPERTIES: Low to high viscosities with solids.
APPLICATIONS: Domestic & industrial sewage treatment.
DESCRIPTION: Single acting, unbalance, single helical coil spring, elastomeric bellow seal and bi-directional.
PRESSURE RANGE: Up to 12 bar

ROTO SEAL CODE ‘N’

MEDIA PROPERTIES: Containing solids or with high viscosites, Exp- 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, Exp- 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, Exp- 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, Exp- 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 ‘T’

MEDIA PROPERTIES: Low up to high viscosity with or without solids, abrasive, adhesives, crystallizing, aggressive and toxic media.
APPLICATIONS: Toxic media, food , pharma, sewage and ceramic slurries.
DESCRIPTION: Double acting, multiple spring, unbalanced and bi-directional.
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, bi-directional and metal bellow.
PRESSURE RANGE: Up to 12 bar

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