HMA-RP2M v03

• High hydrodynamics section globe body, without stagnation pockets (low pressure loss type);
• Standard ductile cast iron casting GS400/GGG40, carbon steel casting on request;
• 200°C furnace polyester powder painting with 150 micron of minimum guaranteed thickness;
• Plunger shaft entirely guided;
• Particular plunger disc section and seat against cavitation risk;
• Plunger shaft guide independent of seal seat;
• Removable standard stainless steel seat, for higher cavitation resistance;
• Obstacle free full port;
• Neither spoke nor grid interposed in closing passage section to reduce maintenance and possible clogging;
• Optional V-Port plunger or dissipating cage without valve modification, to dissipate higher pressure and stabilize the valve opening;
• Stainless steel hexagonal head bolts fastening cover to main valve body; bolts protected inside casting;
• Silicone bolt sealing on request;
• Stainless steel shaft, plunger, and return spring;
• Return spring must not be inside flow path to avoid further turbulences and clogging;
• Stainless steel brass plunger position indicator;
• Nylon reinforced Buna-N diaphragm, on request special material diaphragm for petrochemical use;
• Polyurethane plunger seal disc, or special material for petrochemical use, on request;
• Easy maintenance design and easy access to internal parts without removing the valve from the pipeline;
• Possible maintenance intervention on pilot circuit even with operating valve;
• Drain plug on valve bottom for total drainage in case of frost;
• Main function pressure gauge for pilot calibration included, optional pressure gauge on demand;
• Lifting and handling rings obtained directly from casting;
• Valve functions can be changed or added by simple pilot circuit modification.

STANDARDS CONFORMITY

• Flange to flange: UNI-EN 558-1, DIN 3202 serie F1.
• Flange drilling: ISO PN16-25-40, on request compatible ANSI 150-300.
• Conform to use with water intended for human consumption as per DM174/GU166/DE98/83CE