W‑Series One‑Piece PTFE Diaphragm | Iwaki Air Skip to content

W‑Series One‑Piece PTFE Diaphragm

Cleaner, longer‑lasting performance for chemical, food, and pharma applications—with torque‑free installation and a disclesscrosoft%20Copilot%20Chat%20Files/W-Series%20Diaphragm%20-%20FINAL.pdf) -->

One‑piece, discless PTFE + EPDM backup Torque‑free install Extended service life
W‑Series diaphragm, smooth PTFE surface and EPDM backup

Why it stands out

Sanitary, smooth PTFE surface

No bumps on the liquid side—ideal for hygienic service.

EPDM rubber backup (FDA)

FDA 21 CFR 177.2600‑compliant EPDM for strength and resilience.

No center hole

Prevents product from entering the air motor for safer operation.

Torque‑free installation

No precise bolt‑hole alignment needed—maintenance is faster.

Reinforced and robust

Reinforcement fabric plus a stainless‑steel insert plate for durability.

Built‑in O‑ring

Secure fit within the air motor chamber.

No abrasion traps

Eliminates slurry wear between diaphragm and center disk.

FDA & 1935/2004/EC

Designed to meet applicable food‑contact and EU regulations.

Applications

  • Chemical processing
  • Food & beverage production
  • Pharmaceutical manufacturing
  • High‑purity or abrasive media

Technical specifications

W‑Series technical specifications
Design One‑piece, discless diaphragm
Materials PTFE face with EPDM rubber backup
Reinforcement Reinforcement fabric + stainless‑steel insert plate
Installation Torque‑free (no hole alignment required)
Temperature range 0°C–100°C (32°F–212°F)
Compliance FDA 21 CFR 177.2600; 1935/2004/EC