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Safety valves

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Pilot operated pressure reducing valve flanged cast iron, DN 15 / PN10
Fig. JRV-SF16-15
  • Nominal bore, DN (mm): 15
  • Pressure, Bar: 10
  • Temperature (max), °C: до +220
  • Connection: Flanged
  • Body material: grey cast iron GG25
  • Working environment: steam
Safety spring valve, angle proportional, flange, steel, DN 15 / PN16
Fig. H111-15
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 15/20 / PN16
Fig. H110-15
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Safety valve spring corner full lift flanged steel, DN 20/25 / PN16
Fig. H110-20/25
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Safety valve spring corner full lift flanged steel, DN 20/32 / PN16
Fig. H110-20/32
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 25/32 / PN16
Fig. H110-25/32
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Safety valve spring corner full lift flanged steel, DN 25/40 / PN16
Fig. H110-25/40
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Safety valve spring corner full lift flanged steel, DN 25/50 / PN16
Fig. H110-25/50
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Safety valve spring corner full lift flanged steel, DN 32/40 / PN16
Fig. H110-32/40
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Safety valve spring corner full lift flanged steel, DN 32/50 / PN16
Fig. H110-32/50
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Safety valve spring corner full lift flanged steel, DN 40/50 / PN16
Fig. H110-40/50
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 40/65 / PN16
Fig. H110-40/65
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 50/65 / PN16
Fig. H110-50/65
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Safety valve spring corner full lift flanged steel, DN 50/80 / PN16
Fig. H110-50/80
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Safety valve spring corner full lift flanged steel, DN 65/100 / PN16
Fig. H110-65/100
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Safety valve spring corner full lift flanged steel, DN 65/80 / PN16
Fig. H110-65/80
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Safety valve spring corner full lift flanged steel, DN 80/100 / PN16
Fig. H110-80/100
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 80/125 / PN16
Fig. H110-80/125
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 100/125 / PN16
Fig. H110-100/125
  • Nominal bore, DN (mm):
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Safety valve spring corner full lift flanged steel, DN 100/150 / PN16
Fig. H110-100/150
  • Nominal bore, DN (mm):
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Large selection of safety (emergency) valves from UKSPAR

The safety valve is designed to release excess working medium and, as a result, reduce pressure in the pipeline system. When the indicators in the line rise to a critical level, the shutter automatically moves back and the valve releases excess flow, which reduces the risk of accidents and breakdowns of the pipeline or equipment. When the performance stabilizes, the shutter returns to its place and locks the working flow.

Structurally, safety valves consist of:

  • enclosures;
  • shut-off element (valve+seat);
  • setter;
  • adjustment screw;
  • seal.

  • The level of critical pressure in the valve can be adjusted manually or set by the factory settings (adjustable safety valve).

    What are safety valves

    The relief valve can be classified as follows:

  • by setter type;
  • by shutter movement;
  • by the principle of lifting the shutter;
  • how long the shutter opens;
  • according to the body material.
  • By setter type

    1. Spring (setter - spring). The spring-loaded safety valve is often purged, used in household (for example, a blast valve for a boiler) and housing and communal pipelines (with the exception of fittings for aggressive and high-temperature environments).
    2. Lever-load (setter - load, the force from which is transferred to the valve part). Lever weight valves are mounted only by the flange method, they are prohibited for operation on mobile vessels.
    3. Magnetic-spring, or combined (setter - spring in conjunction with an electromagnetic drive). Magnetic spring valves are installed in sensitive equipment.

    Shutter motion

    The drain valve is of two types:

  • direct action: the valve is lowered under the pressure of the working flow;
  • reverse action: the shutter is lowered due to an external source (for example, electromagnets).
  • Roll Shutter

    Emergency valves are proportional and on/off.

  • proportional products open smoothly as pressure increases, and are used for incompressible flow (example - safety valve on the boiler);
  • Two-position products open sharply and completely, and are used for compressible flow (example - explosion valves for a gas duct).
  • How far the shutter opens

    There is such a relief safety valve:

    1. Low lift - opens no more than 5% of the seat diameter.
    2. Medium Rise - Opens 5-25% of saddle diameter.
    3. Full lift - opens 25% or more of the seat diameter.

    Small and medium lift products are used in pipelines with low throughput, full lift products are used in pipelines with high productivity.

    Based on body material

    Most often, an emergency valve is made from:

  • inexpensive but wear-resistant brass;
  • carbon steel with a maximum working pressure of 0.1-70 MPa;
  • heat-resistant cast iron (for industrial purposes)
  • stainless steel with a maximum working pressure of 0.25-2.3 MPa.

  • UKSPAR's finest rebar

    We offer to buy at low prices a safety spring valve (and other types) from the Ukrainian trademark UKSPAR. The fittings are durable and reliable, which is expressed in the following points:

  • quick opening of the locking element;
  • sufficient bandwidth;
  • good fit in the seat when closing the closure;
  • excellent tightness;
  • Stability of parameters of elastic elements.

  • Each safety valve from UKSPAR has certificates of conformity and an accompanying warranty. Armature is used for different working environments:

  • natural gas;
  • air;
  • inert gases; steam;
  • water;
  • aggressive environments;
  • food liquids.

  • It is possible to deliver fittings and other products throughout Ukraine on favorable terms.

    Attention!
    This catalog presents the technical specifications of the UKSPAR products at the moment.
    The manufacturer reserves the right to make changes to the design and technical parameters of products without notifying the consumer.


    All articles and graphic materials on the site www.ukspar.ua are protected by copyright.
    Placement of articles and graphic materials on other sites, only with the consent of the administration of the site www.ukspar.ua

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