Radially Split two Stage Between Bearings Pumps (API Class BB2)

The model RTV is horizontal, radially split, two stage, single suction, diffuser(at 1st stage) and single or double volute(2nd stage), centerline support, between bearings process pump.
The RTV is suitable for low capacity and middle pressure application.

Heavy duty construction is full compliance with API610
Seal chamber
Seal chamber dimensions are in full compliance with API682 and API610 standards, and dual seals can be installed with our standard seal chamber dimension.
Easy maintenance
Overhaul can be carried out without removing main piping and driver.
High reliability
Opposite impeller stage arrangement provides pumps with thrust force balance. Volute casing with a diffuser provides internal radial force balance.
The full-circular construction of the bearing housing and high precision dynamic balance ensure stable operation and long bearing life.
Self vent
Both the discharge and suction nozzles are placed on the top, which allow self venting and realize a smooth start up.

The casing is designed in full compliance with API610. (design pressure, nozzle forceand moment, etc.)
Radially split casing is metal-to-metal fitted with a controlled compression gasket which ensures perfect sealing without misalignment.
Centerline support design prevents misalignment caused by thermal expansion.
Single head of back pull-out construction allows removing rotor without dirupting driver and the suction and discharge pipings.

Closed single suction impeller is designed to meet the specific operating condition with the maximum efficiency.
The impeller is dynamically balanced to meet the API610 requirement.
Opposite impeller layout reduces thrust loads and prolongs bearing life.

Renewable wear rings are furnished.

Shaft deflection is minimized for longer bearing life and shaft seal life.

Mechanical seal is applicable to all seal types and plans in accordance with API682 and API610.
Upon request, gland packing can be installed.

The full circular design of the bracket minimizes vibration of the bearing housing, so the pump vibration stays within tolerance specified by API610. If high temperature service is specified, suitable cooling system is furnished.