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Laufer Valve

2-way Control Arc Valves

Ideal for controlling sensitive media containing solid particles

On account of their favorable flow characteristic LIAG® arc valves are particularly suited for proportioning viscous and pasty products. Depending on the product to be proportioned LIAG® arc valves can be delivered with various shutter qualities and linearization inserts. Control is performed via a standard 4-20mA (0-10V) electrical actuator. The control characteristic / rate of flow or the control range can be adapted to customers requirements.

Features

  • No dead pockets
  • EHEDG certified 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
  • Optionally with 3-A approval and EHEDG rating
  • CRN

Downloads

Data Sheets

2-way Control Arc Valves DIN / SMS / Inch

Accessories and Spare Parts

Technical Data Overview

Nominal sizes:
DINInchSMS
DN251"DN25
DN401.5"DN38
DN502"DN51
DN652.5"DN63
DN803"DN76
DN1004"DN102
Materials:
Inox parts in contact with product:AISI 316L (1.4404 / 1.4435)
Other inox parts: AISI 304 (1.4301)
O-ring seals:EPDM, FPM (Viton®)‚ FEP, other grades upon request
Shutter:Dyneon™ TFM1600
Surfaces:
In contact with products:Ra ≤ 0.8µm (Ra ≤ 32µin)
Temperature:
Operating temperature:110°C (230°F)
Short-term:140°C (284°F) - optionally up to 200°C (392°F)
Operating pressure:
Pressure behind arc:10 bar (145 psi) - optionally up to 20 bar (290.1 psi)
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:
Welded ends:DIN, Inch (SMS, ASTM)
Male ends:DIN 11851, SMS 1145
Clamp:Tri-Clamp
Furhter options:
  • Linearization insert - mechanical adaptation of control characteristic
  • Heated version
  • Shutter material, alternatively glass-fiber reinforced Teflon (GL25), Tecapeek®, Techtron®
  • Electric actuator with MOD positioner 4-20mA (0-10V), 220-240V, 50/60Hz / IP65 / 0°-90° (110V AC-version upon request)
  • Leakage control of moving O-ring seal / steam barrier with ball-bearing supported selector shaft
  • 3-A approval / FDA
  • CRN

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