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HIGH PERFORMANCE WELDABLE GLOBE VALVE

PERSTA HD91

  • INTEGRATED STELLITE SEAT
  • SEALING BY PACKING
  • BRONZE YOKE
  • STEM WITH STELLITE HOUSING

Range: DN 20/65

PN: 300

Temperature range: -10ºC to 550ºC

HIGH PERFORMANCE WELDABLE GLOBE VALVE

INTEGRATED STELLITE SEAT
GASKET SEALING
BRONZE YOKE
STEM WITH STELLITE FRAME

PERSTA HD91

Rango: DN15-65/50

Presión: PN300

Ratio temperatura: -10ºC hasta 550ºC

Description

HIGH PRESSURE / TEMPERATURE WELDABLE GLOBE VALVE – PERSTA HD91

The PERSTA HD91 is our high pressure globe valve with DIN weldable connection (ASME version available). It has a welded seat integrated with stellite, as it is not pressurized by a bolted seat there is no corrosion or leakage. The disc and stem are formed by one piece in order to prevent damage to the shaft due to the flow velocity. The valve is sealed to the outside only by means of the gland, as the hood gasket is not visible, reducing the possible leakage areas. The body and hood are bolted together in two parts to facilitate maintenance (such as replacing seats). The yoke is supported by the bearing needles (axial type) to reduce stress when operating the valve. It is possible to install a flange for actuator mounting. The nominal pressure range is 10 to 300 bar. Maximum temperature range is from -10ºC to 550ºC.

Technical features

HIGH PRESSURE / TEMPERATURE WELDABLE GLOBE VALVE – PERSTA HD91

Integrated seats

Integrated body and seat, reinforced with stellite. No ring, no spaces to accumulate corrosion.

Stem

Stem reinforced with stellite that withstands temperatures up to 570ºC. In addition, the union between disc and stem is unbreakable even at high fluid velocities.

Bonnet and body bolted

Bolted bonnet and body for easy adjustment of the body seat

External sealing

External sealing only by gasketing without the need for gaskets that can cause additional leakage

Yoke on special bronce

Yoke on special bronze for improved performance in emergency situations

Retrofittable flange

Retrofittable flange for electric actuators

Design options:

  • One-piece disc and stem
  • Die forged valve body
  • Non-rotating rising stem
  • Position indicator
  • Throttling disc
  • Yoke sleeve supported by bearing needles
  • Possibility of adding an actuator flange

Materials:

  • 1.0460
  • 1.5415
  • 1.7335
  • 1.7383

Range:

DN15-65/50

Pressure temperature ratio:

  • Pressure rating 320 bar
  • Temperature classification from -10 ° C to 600 °C

Fields of application:

Steam and high temperature wafer, refining (catalytic reformers and hydrocrackers), petrochemical and chemical industries, power, plants etc. 

Media:

Obleas de vapor y alta temperatura, refinado (reformadores catalíticos e hidrocraqueadores), industrias petroquímicas y químicas, centrales eléctricas, etc.

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HIGH PRESSURE / TEMPERATURE WELDABLE GLOBE VALVE – PERSTA HD91

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