Hygienic Shut Off Valves LCV

RIEGER LCV Single seat valves are found in the plants of food industries. They combine the advantages of the dead leg free valve body with the concept of the maintenancefree welded pneumatic actuator. The spring-loaded actuator can be used as spring-closing as well as spring opening by easy turning.

Right angle and change-over valves base on the same bodies. The can be combined on the many ways and so diminish the spare part costs. In daily use, the LCV valves grant high flexibility inside the system and the perfect application for your liquid products.
Materialin contact with product
not in contact with product




continuous operation

steam sterilization

ambient temperature

130 °C*

135 °C* short-time
(approx. 20 min)

max. 60 °C


closing pressure
but DN 100

control air pressure

air connection

control air

max. 6 bar
max. 4,5 bar

min 6 bar -
max. 10 bar

1/8" for 6 mm hose

oil free acc. class 3

in contact with product

not in contact with product

Ra ≤ 0,8 µm

Ra ≤ 1,6 µm

standard pipes
DIN 11850-R2 (DIN 11866 A)

                                                                                 *dependent upon operating conditions
Right Angle Type L
Double Right Angle Type T
Cross Type TT

closing pressure: 6 bar

resistant against aggressive media

for proximity switches and control tops

highest safety standard via caged spring


maintenance free

required air supply pressure: 5 - 8 bar (72,5-116 psi)

fast assembly/disassembly

suitable for all common air fittings


switching from spring to close (NC) to spring to open (NO)
and vice versa with same actuator possible

only 3 actuators for all sizes in our building block system

Booster available

adaption for all common control tops available

flexible in use up to 165.000 cycles

This control top has been developed between AWH and Rieger in collaboration with Bürkert. It serves as a custom-fit solution for our in-house hygienic and aseptic process valves to achieve an even more efficient and precise application.

Contact-free inductive valve position measuring (Teach function)

  • status display luminated in colour
  • integrated control air supply to the actuator
  • field bus port AS-interface, DeviceNet, IO-Link or Bürkert system bus (büS)
  • with ATEX-option:
    Ex II 3 G Ex ec IIC T4 Gc X

    Ex II 3 D Ex tc IIIC T135°C Dc X

FlowStar is available in the models 24 V DC, AS-I bus, IO-Link (Port Class A) or Ethernet IP.
All models  are available as the following alternatives::

  • without solenoid valve, 3 internal proximity switches + 1 outlet for external proximity switch
  • 1 solenoid valve, 3 internal proximity switches + 1 outlet for external proximity switch
  • 2 solenoid valves, 3 internal proximity switches + 1 outlet for external proximity switch

Mounting kit integrated in Control Top – no separate mounting kit necessary. Exception for LCV valves, ESV valves.

All Valves are available in special alloys, such as Hastelloy® C-22, 1.4539/904L, 1.4529, AL-6XN® and others.

Directly send us your inquiry:
Tel.: +49 7361 5702-0