Overflow valves of Series BV

The overflow valves of Series BV are used for actuation type E: with adjustment screw.

The valves are suitable for use with lubricating and hydraulic oils and many other self-lubricating non-corrosive fluids. They deliver excellent heating oils EL, L, M, S and ES, coal tar oils and kerosene.

Technical Data:


casing of hydraulic cast iron (GGG 40); certificate on request; piston, valve tip, spring of hardened steel


  • Maximum temperature of fluid medium: 150 °C
  • Function: Directly-controlled, spring-loaded overflow valve for maintaining a set operating pressure or a set maximum pressure in a pressure pipe

R Bypass connection G 3/4″
P Delivery output G 3/4″
Pn Manometer connection G 1/4″
P1 Pressure regulation (under cover screw)

BV valve
Viscosity range (mm-²/s) 1,3 – 700
Flow rate l/h 300-2000
Pressure range bar 2-9 / 6-25 / 15-40
Factory setting bar minimum pressure
Weight 3,8 kg
max. oil temperature °C 150
Ambient temperature °C -10 to +90
Storage temperature °C -20 to +60
Item No.

Technical Drawing

Need additional infos? Please contact us

Jochen Twellaar

+49 (0) 721/95618-23


Joachim Rau

+49(0) 721/95618-25