Immersible Pumps

Product introduction

BTR, BPK and BTH pumps are vertical multistage centrifugal pumps designed for pumping of cooling lubricants for machine tools, condensate transfer and similar applications. The pumps are designed to be mounted on top of tanks with the chamber stack immersed in the pumped liquid. The pumps come in various pump sizes and have various numbers of stages to provide the flow rate, the pressure and the installation length required. To meet specific depths of tanks or containers, the Immersible length of the pump can be varied using empty chambers. The pumps consist of two main components: The motor and the pump unit. The mounting flange dimensions are according to DIN5440. The mechanical shaft seal is according to EN 12756

The pumps are available in two material versions.
• standard range with wetted parts of cast iron and stainless steel
• stainless steel version with all wetted parts of stainless steel EN/DIN 1.4301 or better.

The BTA &BTA-H range of single-stage Immersible pumps has been designed especially for filtering systems in the machine tool industry. The BTA pumps efficiently transport liquid containing chips, fibers and abrasive particles to the filtering unit. The semi-open impellers allow the passing of chips up to 10 mm. These low-pressure pumps are available in 9 different hydraulic variants and come with a choice between top suction or bottom suction. The pumps are designed to be mounted on top of tanks with the pump part immersed into the pumped liquid. The pump is designed to be maintenance free, and therefore does not contain shaft seals or other wear parts.

Operating Range Operating Range Features (50/60HZ) 

BTR, BPK & BTH Technical data
Flow, Q: max. 85 m³/h (1416 LPM)
Head, H: max. 330 m Head
Liquid temp.: -10°C to +120°C

BTA & BTA-H Technical data
Flow, Q: max. 420 I/min
Head H: max. 19 m
Liquid temp.: 0°C to +60°C