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Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434

Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434
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Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434 - 1

Pressure Regulators Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434 Application Set point range from 0.3 to 3 bar · Nominal valve size DN 15, 20 and 25 · Nominal pressure PN 25 and 40 · Suitable for steam up to max. 170 °C The valve closes when the downstream pressure rises above the adjusted set point. The Type 2434 Steam Pressure Reducing Valve controls the steam pressure (at a constant upstream pressure p1 of 6 bar) downstream of the valve to the pneumatically adjusted target pressure ptarget within the range between 0.3 to 3 bar. Special features •• Low-maintenance, low-noise pneumatically controlled P-regulator •• Pneumatically adjustable set point Versions Type 2434 Steam Pressure Reducing Valve, consisting of: Valve with body made of EN-JS1049 (spheroidal graphite iron) · PN 25 or Valve with body made of cast steel 1.0619 · PN 40 Nominal size DN 15, 20 and 25 · Pneumatic actuator with EPDM diaphragm · Pneumatic set point adjustment ANSI version on request Accessories Coiled control line for downstream pressure p2 Fig. 1: Type 2434 Steam Pressure Reducing Valve, PN 40 Associated Information Sheet

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Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434 - 2

The steam pressure reducing valve mainly consists of the valve (1) with seat (2) and soft-seated plug (3). The actuator housing (6) for pneumatic set point adjustment is connected over an extension piece (5) to the valve. The regulator is used to keep the pressure downstream of the valve p2 constant to the pneumatically adjusted target pressure ptarget. The valve is closed by the springs when no pressure is applied. In the operating state, the valve is opened by the control pressure pS. The medium flows through the valve in the direction indicated by the arrow. The position of the valve...

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Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434 - 3

Table 1: Technical data · All pressure stated as gauge pressure in bar Nominal size Nominal pressure Max. upstream pressure p1 Set point range Max. permissible temperature for steam with coiled control line Actuator Diaphragm area of actuator Table 2: Materials· Material numbers according to DIN EN Valve PN 25 Spheroidal graphite iron EN-JS1049 Valve body PN 25 · Spheroidal graphite iron PN 25 · Spheroidal graphite iron Plug stem Bottom section Plug seal Actuator Diaphragm cases Diaphragm (steam side) Guide bushing Diaphragm (control pressure side) Typical application Provided the...

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Steam Pressure Reducing Valve with pneumatic set point adjustment Type 2434 - 4

Type 2434 with control line (coiled to cool down th medium in it); actuator suspended downward Type 2434 with control line (coiled to cool down the medium in it); actuator on top Table 4: Dimensions and weights Ordering text Type 2434 Steam Pressure Reducing Valve with pneumatic set point adjustment DN ..., PN ... Accessories: Control line (coiled to cool down the medium in it) including compression fitting, actuator installed suspended downward or on top • Order no.: 1402-0194 Screw fitting with restriction G 3/8 • Order no.: 1490-2175 Special version ... Specifications subject to change...

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