Main applications

  • Advanced treatment / 3.stage
  • Bio. treatment / 2.stage
  • Chemical industry
  • Drainage
  • Drainage pump stations
  • Industrial waste water
  • Industry engineering
  • Mech. treatment / 1.stage
  • Municipal waste water
  • Sewage treatment plants
  • Surface drainage
  • Waste water
  • Waste water transport

Technical data

T max 100 °C
DN max 600
PN max 16


MSS SP 81 knife gate valve with through-going blade, made of carbon steel and stainless steel, uni-directional design with PTFE packing, suitable for EN and ANSI connections.


Mainly used for slurries and high-density fluids in the mining industry, good flow efficiency due to through-going blade, also for pulp and water applications. Other fluids on request.

Further technical information about HERA-BHT

Overview of technical data

T -10 – 100 (°C)
DN 80 – 600
PN 16
Class(es) 150
Main applications Industry and process engineering, Waste water / sewage
PN min. 10
Actuator position feedback No