High Purity Wafer Check Valve Graphics

High Purity Wafer Check Valve

The High Purity Wafer Check Valve is a compact, high-performance non-return valve designed for use in ultra-clean and corrosive fluid systems. Built using high-purity materials such as PFA, PTFE, or PVDF, it ensures contamination-free flow, excellent chemical resistance, and reliable prevention of reverse flow. Its wafer-style design allows for easy installation between flanges in space-constrained piping systems, making it ideal for high-purity and high-performance industrial environments.

Key Features of High Purity Wafer Check Valve

  • High-Purity Construction: Fabricated from PFA, PTFE, or PVDF for maximum cleanliness and chemical resistance.
  • Compact Wafer Design: Slim profile fits between standard flanges, reducing space and weight requirements.
  • Non-Return Function: Prevents backflow and protects sensitive process equipment.
  • Low Crack Pressure: Ensures efficient opening with minimal pressure loss.
  • Cleanroom Manufactured: Assembled in ISO Class 100 or better environments to maintain ultra-pure standards.
  • Minimal Particle Generation: Smooth internal surfaces reduce contamination risk.
  • Corrosion Resistant: Suitable for aggressive acids, bases, and high-purity fluids.
  • Standards Compliant: Meets SEMI F57, FDA, and USP Class VI specifications.

Technical Information

Parameter Details
Size Range
1″ to 4″
Body Materials
PFA, PTFE, PVDF
Seal Material
PTFE, FKM (Viton), EPDM
Design Type
Wafer-style, spring-assisted disc
Connection Type
Flanged (wafer installation between flanges)
Max Operating Pressure
Up to 100 psi at 20°C
Crack Pressure
Typically 2–5 psi (customizable)
Temperature Range
PFA/PTFE: up to 260°C PVDF: up to 150°C
Flow Direction
Unidirectional
Surface Finish (Ra)
< 15 µin (0.38 µm)
Compliance Standards
SEMI F57, ASTM D3222/D3307, FDA, USP Class VI
Manufacturing Environment
ISO Class 100 or better cleanroom
Typical Applications
DI water systems, chemical processing, ultrapure solvent handling, acid lines