01
Overview
The GF Type 517 is a flanged PVC-U diaphragm valve for isolation or regulation of corrosive liquids. Its serviceable diaphragm construction combines high-flow geometry with multiple elastomer and PTFE-backed diaphragm choices.
02
Key characteristics
- 01High-flow internal geometry
- 02Single union nut service access
- 03Integrated handwheel lock
- 04Multiple diaphragm material options
03
Technical specifications
- Nominal sizes
- DN15 to DN50
- Pressure rating
- PN10
- Flow coefficient
- Kv 125 to 1,728 L/min, size dependent
- Valve body
- PVC-U
- Diaphragm options
- EPDM, NBR, FKM or PTFE / EPDM
- Flange standards
- ISO 7005, EN 1092, DIN 2501 and BS 4504 PN10
- Operation
- Manual handwheel with integrated lock
04
Applications
- Water treatment
- Chemical handling
- Process skids
05
Selection notes
- 01
Confirm body and diaphragm compatibility against concentration and design temperature.
- 02
Review throttling range and required Kv where the valve will regulate rather than isolate.
- 03
Allow access for diaphragm inspection and replacement.
