Parker's LQX 12 family of 12mm diaphragm isolation valves offer metal free wetted paths with EPDM and FFKM versions to meet the needs of your applications.

Product Information

LQX12 is a high-performance two-way normally closed and three-way universal isolated diaphragm valve. This highly flexible design is 12mm wide and offers two different elastomer options. LQX12 supports the pressure and flow requirements needed by today’s analytical, bio-analytical, and clinical diagnostic OEMs.
  • EPDM or FFKM elastomers for particulate tolerance and reliability in a wide range of liquid and gas media
  • 100% tested leakrate ensures a tight seal on every valve
  • Reduced system size with efficient packaging and 12 mm width
  • Designed to be manifold mounted side to side on 12 mm centers
  • Low internal unswept volume to minimize carryover and cross-contamination
  • Secure electrical termination t0 female connectors with friction locked (latching) electrical connection
  • Optional ¼-28 ported sub-base for standalone operation or testing

Typical Applications

Analytical Chemistry
Clinical Chemistry
Automated Slide Stainers
DNA/RNA Synthesis

Technical Specifications

Typical Applications: Analytical Chemistry, Clinical Chemistry, Hematology, Urinalysis, Automated Slide Stainers, DNA/RNA Synthesis, TOC, VOC
Valve Type: Diaphragm Isolation
Vacuum to Pressure Range: 24" Hg to 50 psi (3.45 BAR)
Orifice Sizes Available: 0.040" (1.0 mm)
Valve Configuration(Type): 2 Way Normally Closed or 3 Way Universal
Leak Rate: Bubble Tight
Response Time: 20 msec
Mounting Style(integration): Manifold(Face Seal) or 1/4-28 Sub-base

Wetted Materials

Body: PEEK
Diaphragm/Armature: EPDM or FFKM



Data Sheet

Click to download the Technical Specification of LQX 12 - Miniature Diaphragm Isolation Valve