Hygienic Valves

Inexpensive shut-off fitting in the hygienic product and CIP section

• Solidly designed valve disk
• Safe guidance of the disk thanks to bushes in the housing
• Seal with a small volume and extension gaps for compensating temperature expansion
• Seal flush against the housing, bevelled seat ensures that the disk opens and closes securely with minimal wear
• Reliable sealing over the entire temperature range
• Innovative seal design and composition of the elastomer according to the latest research findings
• Easy installation with different connection variants

To particularly suit the process conditions

– Valve disk with balancer:

•   Reduces pressure surges when closing in the direction of flow
•   The cone-shaped valve disk ensures a gentle transfer of the product

– Metal stop for the valve disk to protect the seal

– Two-piece threaded valve disk with

•   Defined space for the sealing ring
•   Easy assembly without risk of twisting
•   Seal resistant to seepage and rip-out

– Design of the shaft seal:

•   Wiping function protects against contamination ingress
•   Geometry protects the seal against being torn out

– High product pressure of up to 22.7 bar

– Avoidance of pressure surges when closing

Reliable flow direction control in a hygienic production process

–    Two-part valve disc, screwed, with a defined space for the sealing ring for easy installation

–    Seal resistant to seepage and ripout

–    Shaft seal design:

•     Stripping function protects against contamination ingress
•     Geometry protects the seal against being torn out

Version SC

–    Actuator allocation according to product pressure:

•     6 bar (87 psi) / 10 bar (145 psi) / 22.7 bar (330 psi)

–    Application with higher product pressures up to 22.7 bar (330 psi) and to avoid pressure surges

–    Valve disk double-balanced

•     resistant to pressure blows up to min. 45 bar (652 psi)
•     avoidance of pressure surges during switching

–    Housing PN 25 without dead space

•     one part, for welding – no additional connections (screw connection, flange, etc.) required in the pipeline
•     drainable- no sump in the upper housing

–    Variable flow direction

Version SC2

–    Cost-effective alternative – connection 0 to gully

–    Actuator allocation to product pressure 6 bar (87 psi), 10 bar (145 psi)

Designed to maintain a constant product pressure inside the pipes.

–    Actuator allocation with adjustment to product pressure

–    External air connection as a standard to open the valve during cleaning

–    Internal air flow with the use of a control head to open the valve during cleaning

–    Support for proximity switch mountable on the actuator

–    Optimum design of fluid flow for pressure increase in the area of the valve seat

–    Air connection for compressed-air superimposition

–    Metal stop of the valve disk for sealing protection

–    Two-part valve disk, screwed, with a defined space for the sealing ring for easy installation

•     screwed with lock against rotation
•     Resistance to rip-put and fluid behind the seal

–    Shaft seal design:

•     Stripping function protects against contamination ingress
•     Geometry protects against being torn out

Fast and exact control of processes in hygienic applications

• Standard control cone with equal percentage
• Sealing geometry optimised for all required process conditions
• Two-part valve disk, screwed, with a defined space for the sealing ring for easy installation
• Allocation of diaphragm actuator with adjustment to product pressure
• Selection according to nominal diameter, KV value and seat diameter
• Fine adjustment
• Control cone with equal percentage or linear
• Same sealing concept as with seat valve

Protection of valuable equipment against vacuum

–    Horizontal installation position

–    Opening pressure: -3 +/-1 mbar (-0.044 +/-0.015 psi)

–    Types:

•     not liftable, without drip cup
•     liftable, with drip cup

–    Standard connection for welding

–    Optimal cleaning conditions due to absence of dead space

–    Outlet defined over drip cup – targeted discharge of fluid

–    Horizontal installation position protects from ingress of contamination from outside into the tank

–    Additional options:

•     heating
•     proximity switch

Protection of valuable equipment against vacuum

• – TÜV approvals
  • for steam/gases and liquids
• – Horizontal/vertical installtion
• – Seal material EPDM, FDA-compliant
• – Set pressure according to specification

Types

• manual actuation
• Replacement of sealings in the product room without recertification by control board
• pneumatic actuation
  • – Simple installation

Additional options:

• heating
• proximity switch

Used as an economical shut-off device for separation of incompatible media in CIP applications

–    Installation in horizontal pipelines without height difference

–    All other constructional details are the same as with the butterfly valve

–    Nominal diameters DN 25 to DN 150

–    2-disk concept

•     both disks are switched by a common device and a single actuator

–    Safety chamber between the disks is equipped with 2 pneumatic flushing valves for complete drainage of the leakage chamber

–    Function: leakage butterfly valve NC in closed position, flushing valves NO in open position

•     With activation of air pressure, first the flushing valves close, then the leakage butterfly valve goes into open position

–    Seal material EPDM / FDA 21 CFR Part 177.2600 Optionally HNBR, FKM, VMQ

–    Actuator maintenance-free, designed to 1,000,000 cycles

Separation of media such as CIP, water or gasses

• Economical alternative to double seat mixproof valves
• Valve disk with two seals between the pipe systems when in a closed position
• Leakage chamber equipped with two rinsing valves for leakage display
• Cleaning with a tangential rinsing-medium inflow
• Avoidance of dead space thanks to the hygienic sealing of the rinsing valves directly at the product area
• Design of the shaft seal and seal on the valve disk similar to the seat valve

Pressure-resistant separation

– Two valve disks working independently from one another, used for sealing between the pipe systems when in a closed position:

•   Leakage-free switching
•   Resistant to pressure blows up to min. 45 bar
•   Liftable and rinsable design for cleaning the leakage chamber

– Screwed-on valve disk:

•   Defined space for the sealing rings
•   Easy assembly
•   Seal resistant to seepage and rip-out

– Universally applicable seal for radial and axial sealing

– Design of the shaft seals similar to that of the seat valve

– The valve disks are sealed together directly in the product room and without a gap in between

– Actuator with integrated cycle function for fast cycle times and low air consumption

• Maintenance-free
• Rotational positioning over 360°
• Rigid housing made of stainless steel and plastic
• Clear recognition of the switching states by LED (green, yellow, red)
• Design of interface module and pilot valve according to customer requirements
• Easy dismantling without disconnecting the electrical and pneumatic supply lines