Check valve model 703 allows medium flow only in one direction. In case of flow reversal, the valve closes automatically, preventing backflow of the medium and protecting the installation.
Design features of the model:
- Designed for gases and liquids, both neutral and aggressive
- Compact construction – very short face-to-face length
- Low opening pressure
- Wafer-type installation
- Integrated sealing in the body (O-ring, except metal-sealed version)
- Flow direction: horizontal (valve must be free to swing) or vertical – from bottom to top
Body / disc materials:
🔹 Carbon steels
- ASTM A105 (1.0460)
🔹 Stainless steels (corrosion resistant)
- A351 CF8 (1.4308) / AISI 304 / A182 F304 (1.4301)
- A351 CF8M (1.4408) / AISI 316 / A182 F316 (1.4401)
- A351 CF3 (1.4306) / AISI 304L / A182 F304L
- A351 CF3M (1.4409) / AISI 316L (1.4404)
Sealing materials:
- EPDM
- FKM (Viton)
- PTFE
- NBR
- Metal-to-metal
