LIAG® 2-Way Control Shutter Valves

2-Way Control Shutter Valves

Ideal for controlling sensitive media containing solid particles

On account of their favorable flow characteristic, LIAG® free flow shutter valves are particularly suited for proportioning viscous and pasty products. Depending on the product to be proportioned LIAG®  control shutter valves can be delivered with various shutter qualities and linearization inserts. Control is performed via a standard 4-20mA (0-10V) electro-pneumatic actuator.

Features

  • No dead pockets
  • CIP/SIP capability
  • Product-saving proportioning
  • No product remainders or sticking of solid particles
  • Full linearization option of control characteristic
  • Minimum number of components and wearing parts
  • Can be completely dismantled even when welded in place
  • 3-A 51-01 and FDA compliance
  • Identical wearing and spare parts as shutter valves
  • CRN

The control characteristic / rate of flow or the control range can be adapted to customers requirements.

Technical Data Overview

Nominal sizes:
InchDIN
1″DN25
1.5″DN40
2″DN50
2.5″DN65
3″DN80
4″DN100
Materials:
Inox parts in contact with product:AISI 316L (1.4404 / 1.4435)
Other inox parts: AISI 304 (1.4301)
O-ring seals:EPDM, FKM (Viton®)‚ FEP, other grades upon request
Shutter:Dyneon™ TFM1600
Surfaces:
In contact with product:Ra ≤ 32µin (Ra ≤ 0.8)
Temperature:
Operating temperature:230°F (110°C)
Short-term:284°F (140°C) – optionally up to 392°F (200°C)
Operating pressure:
Pressure behind arc:145 psi (10 bar) – optionally up to 290.1 psi (20 bar)
Pressure against arc:3 bar (43.5 psi) 
Versions:
2-way
Actuator:
Electro-pneumatic control unit consisting of:
  • Pneumatic actuator 0°-90°
  • Positioner Positurn 4-20mA (0-10V), 24V DC, IP65
 
Valve connection:
Clamp connection:Tri-Clamp
Weld ends:Inch, DIN
Male ends:DIN 11851
Options:
 
  • Linearization insert – mechanical adaptation of control characteristic
  • Electric actuator with MOD positioner 4-20mA (0-10V), 220-240V, 50/60Hz / IP65 / 0°-90° (110V AC-version upon request)
  • Shutter material, alternatively Teflon +15% Peek, Tecapeek®
  • Heated version
  • Leakage control of moving O-ring seal / steam barrier with ball-bearing supported selector shaft
  • CIP/SIP capability (hygienic design)
  • 3-A 51-01 and FDA compliance
  • CRN