ABS Diaphragm Valve Type 515 PN10 d20-d63

  Datasheet (PDF)

The Georg Fischer ABS Diaphragm Valve Type 515 provides precise linear flow regulation and dependable shut-off across metric industrial pressure piping networks. Engineered for demanding industrial duties up to nominal pressure PN10 (10 bar at 20 degrees Celsius), this manual valve features metric solvent cement spigots for seamless integration into d20 to d63 pipelines. BigWeld supplies this high-performance valve as an authorised Georg Fischer distributor, delivering genuine components engineered to perform where mechanical integrity and chemical neutrality are essential.

Technical specifications

The Type 515 diaphragm valve features an optimised internal flow geometry that achieves up to double the flow capacity of previous generations, drastically reducing line turbulence and system pressure drops. A central housing union nut replaces conventional multi-bolt bonnets, ensuring uniform radial clamping over the diaphragm and permitting rapid in-line servicing without disassembling the body from the pipe.

• Nominal pressure rating: PN10 (10 bar at 20 degrees Celsius).
• Size range: d20 to d63 mm (nominal diameters DN15 to DN50).
• Connection standard: Metric spigot ends for solvent cement jointing.
• Hydraulic performance: Kv value of 125 l/min at dimension d20 (DN15).
• Actuation: Ergonomic handwheel with integrated mechanical locking mechanism to prevent vibration drift.

Materials and standards

Constructed with a robust ABS valve body in RAL 7001 gravel grey, the Type 515 incorporates high-grade diaphragm sealing options in EPDM or PTFE/EPDM backed by an FKM O-ring. This configuration provides superior barrier isolation between the process media and the bonnet assembly, maintaining absolute external and internal tightness.

The overall face-to-face installation dimension complies fully with EN 558 standards, such as 124 mm for size d20. The selected ABS thermoplastic material ensures outstanding impact strength, high ductility at lower temperatures, and complete freedom from galvanic corrosion. The assembly also supports optional multifunctional electrical feedback modules with integrated limit switches for remote position monitoring.

Applications

The ABS Type 515 diaphragm valve is purpose-built for low-temperature and ambient utility circuits requiring smooth fluid dynamics and zero contamination. It is especially suited for carrying neutral or mildly corrosive media containing minor solids without risking seat abrasion or valve clogging.

Typical deployment areas include industrial cooling circuits, chilled water loops, potable and industrial water treatment installations, marine and shipbuilding systems, and chemical distribution lines. The non-toxic formulation and smooth hydraulic passage make it a prime choice for sensitive cooling systems where operational uptime and minimal pumping energy losses are critical.