Venting and breathe valve V91

Product catalog summary

Overview
The V91 venting and breathe valves are designed for use in systems where containers and pipelines require ventilation. The valve operates automatically without auxiliary energy, opening when the liquid level drops and closing when it rises.

Specifications
- Available in sizes DN 10 to DN 80.
- Constructed from high-resistant plastics, ensuring durability.
- Operating temperature ranges from 0 to +60°C for PVC, 0 to +80°C for PP, and -20 to +100°C for PVDF.
- Maximum operating pressure is 10 bar at 20°C.

Materials
- Housing: PVC
- Seals: FPM
- Float: PP-Ball or PVDF-Float

Installation Guidelines
- Must be installed vertically with the arrow pointing upwards.
- Recommended not to exceed a fluid speed of 20 m/s.

Components
- Housing
- Screw-in part
- PP-Ball or PVDF-Float
- O-rings

Dimensions
Dimensions are provided in millimeters for various DN sizes, with specific guideline values for diameter and length.

Part Numbers
Part numbers are listed for different configurations, including PVC adhesive, PP with fusion spigot, and PVDF with fusion spigot.

Catalog excerpts

h Divatec Industrial Plastic Valves SPECIAL FEATURES V91 venting and breathe valves are mainly used where containers and pipelines must be ventilated. The float in the V91 opens the valve when the liquid level drops. When the liquid level rises, the float raised and press against the seal, valve closed. • All fluid wetted parts made of high resistant plastics • Operation of the valve requires no auxiliary energy • The valve V91 is mainly maintenance-free Venting and breathe valves have to be installed vertically with the arrow pointing “up”. Housing Permissible operating temperature Seals Float PVDF -20 to + 100 °C FPM PVDF Float

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