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HIGH PERFORMANCE GATE VALVE WITH FLANGES

PERSTA HH/HJ

  • FLANGE WITH GUIDES FORGED ENTIRELY ON THE BODY
  • INTEGRATED SEAT (HARDNESS 35-37 HRC)
  • POLISHED LIFTING STEM
  • ANTI-EXPULSION SEALING

Range: DN 10/150

PN: 100

Operating temperature +600ºC

HIGH PERFORMANCE GATE VALVE WITH FLANGES

FLANGE WITH GUIDES INTEGRALLY FORGED TO THE BODY
INTEGRATED SEAT (35-37 HRC HARDNESS)
LIFT-UP POLISHED STEM
ANTI BLOW-OUT SEALING

PERSTA HJ/HH

Range: DN 10/150

PN: 100

Operating temperature: +600ºC

Description

HIGH TEMPERATURE / PRESSURE GATE VALVE – PERSTA 700HJ/JJ

The PERSTA 700 HJ/JJ is our DIN and ASME standard weld-on (or flanged) gate valve for high performance applications, thanks to its design and quality it withstands high pressures and temperatures.

The valve body is one-piece forged steel stamping, incorporating hood and seal guide, as forged parts, in comparison to cast steel parts, are generally free of porosities, voids and weld seams.

Hardened seats (valve body and sealing device) in order to provide them with extreme wear resistance.

The valve has a bolted bonnet with reduced shaft bolts to improve adaptability when temperature and pressure fluctuate.

The seats offer no reduction of the passage in the area except in the DN 65/50 and DN 125/10 designs.

Non-return and non-rising stem offers minimal gland packing wear compared to ground stem surfaces.

Nominal pressure range is 10 to 300 bar. Maximum temperature range is -10°C to 550°C. The body seat is stellite welded.

Characteristics

HIGH TEMPERATURE / PRESSURE GATE VALVE – PERSTA 700HJ/JJ

Configurable disk/hook
  • Closing/opening disc No. 200 AE
  • Disc for throttling No. 200 BE
  • Closing/opening disc with shaft nut No. 200 AJ
  • Throttling disc with shaft nut No. 200 BJ
Board

High-temperature graphite gasket in the male-female connection between the hood for an anti-expulsion seal.

Bonete

Bonete atornillado al cuerpo para mejorar las características de flujo y disminuir la caída de presión.

Yoke packing

The bearing-reinforced yoke packing reduces the force required to operate the valve.

Configurable stem
  • Upward rotating stem AE/BE
  • Non-rotating rising stem AJ/BJ
Body and hood

Forged body with integrated central flange and internal guide rails for homogeneous bolting, free of pores and cavities. Seats integrated into the body with a hardness rating of 35 to 37 HRC for improved wear resistance and long-term watertightness. Full bore body with no seat constriction.

Materials:

  • 1.0460
  • 1.0619 only flange version PN 10-40
  • 1.0571
  • 1.5415
  • 1.7335
  • 1.7383

Range:

DN50-150

Pressure-temperature ratio:

  • Working pressure, welding ends, up to 120 bar
    (DIN 2401; DIN EN 1092-1 or DIN EN 12516-1)
    Working pressure, flanged ends, up to 100 bar
    (DIN 2401 or DIN EN 1092-1)
    Operating temperature up to 600 °C

Campos de aplicación:

Chemical industries, power plants, shipbuilding and others

Medios:

Depending on the material, the valves are suitable for water, gas, oil and other non-aggressive media.

Downloads

HIGH TEMPERATURE / PRESSURE GATE VALVE – PERSTA 700HJ/JJ

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