PROGEF Type 514 PP-H Socket Fusion Diaphragm Valve

  Datasheet (PDF)

The PROGEF Standard diaphragm valve Type 514 from Georg Fischer (GF Piping Systems) is an industrial flow-control valve engineered from beta-polypropylene homopolymer (β-PP-H). Designed specifically for demanding process environments, this manual valve provides linear flow characteristics and dependable shut-off across chemical distribution, industrial water treatment, effluent handling, and process cooling installations. Manufactured and tested in compliance with EN ISO 16138, the Type 514 features a true double union construction with metric socket fusion ends, allowing straightforward installation, radial dismounting, and simplified line maintenance without disturbing adjacent piping.

Engineered for long-term operational integrity, the valve body incorporates an aerodynamically optimized flow geometry that delivers up to double the flow rate coefficient compared to conventional diaphragm valves. The non-wetted upper housing is moulded from glass-fibre reinforced polypropylene (PPGF) and mounted to the valve body using a robust central union nut. This screwless assembly eliminates exposed exterior metal fasteners, safeguarding the exterior of the valve against atmospheric corrosion and aggressive chemical washdowns. The operating mechanism features an ergonomic handwheel equipped with an integrated stepless locking mechanism and a clear, two-colour optical position indicator for precise visual confirmation of valve status.

Rated for nominal working pressures up to 10 bar (PN10) at 20 degrees Celsius, the PROGEF Type 514 accommodates varied chemical compatibility requirements through factory-fitted diaphragms in EPDM, FKM, NBR, or dual-layer PTFE/EPDM. As an authorised Georg Fischer distributor, BigWeld supplies the complete PROGEF metric valve range across Europe to engineering contractors, industrial plant operators, and piping specialists.