Pressure Relief Valves

Sigmamotor pressure relief valves provides higher accuracy and safety in metering pump systems.

SIGMAMOTOR pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or  excessive pressure situations.

Inside the valve a spring holds a diaphragm against the valve seat until preset pressure is exceeded, then the diaphragm is forced up and the material in the system is forced out of the relief port.

The valves are factory set but are easily adjusted in the field.

Features:

  • CNC precision machined parts
  • Fine pressure adjustment
  • Cost effective and reliable
  • Pressures from 5-150 psi (350 optional)
  • Variety of materials available
  • Right-angle, 2-port and 3-port
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  • SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT RIGHT ANGLE 90Āŗ SOCKET

    Flomotion Systems

    SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT RIGHT ANGLE 90Āŗ SOCKET

    $16,491.84 - $196,768.27
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure situations...
    $16,491.84 - $196,768.27

    Quick Add
  • SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT RIGHT ANGLE 90Āŗ NPT

    Flomotion Systems

    SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT RIGHT ANGLE 90Āŗ NPT

    $16,491.84 - $196,768.27
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $16,491.84 - $196,768.27

    Quick Add
  • SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT FLANGED ANSI 300#

    Flomotion Systems

    SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT FLANGED ANSI 300#

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...

  • SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT SOCKET

    Flomotion Systems

    SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT SOCKET

    $16,491.84 - $196,768.27
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $16,491.84 - $196,768.27

    Quick Add
  • SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT NPT

    Flomotion Systems

    SIGMAMOTOR PRESSURE RELIEF VALVES 50-350PSI: 2-PORT NPT

    $16,491.84 - $196,768.27
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $16,491.84 - $196,768.27

    Quick Add
  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET, 2"

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET, 2"

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...

  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET, 1 1/2"

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET, 1 1/2"

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...

  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT SOCKET

    $16,904.14 - $66,482.73
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $16,904.14 - $66,482.73

    Quick Add
  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT, 2"

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT, 2"

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...

  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT, 1 1/2"

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT, 1 1/2"

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...

  • SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves 50-350PSI: 3-PORT NPT

    $16,904.14 - $66,482.73
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $16,904.14 - $66,482.73

    Quick Add
  • SIGMAMOTOR Pressure Relief Valves: 2-PORT RIGHT ANGLE 90ā° SOCKET

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 2-PORT RIGHT ANGLE 90ā° SOCKET

    $4,061.12 - $179,657.98
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $4,061.12 - $179,657.98

    Quick Add
  • SIGMAMOTOR Pressure Relief Valves: 2-PORT RIGHT ANGLE 90ā° NPT

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 2-PORT RIGHT ANGLE 90ā° NPT

    $4,061.12 - $179,657.98
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure...
    $4,061.12 - $179,657.98

    Quick Add
  • SIGMAMOTOR Pressure Relief Valves: 2-PORT FLANGED ANSI 150#

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 2-PORT FLANGED ANSI 150#

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive...

  • SIGMAMOTOR Pressure Relief Valves: 3-PORT FLANGED ANSI 150#

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 3-PORT FLANGED ANSI 150#

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive...

  • SIGMAMOTOR Pressure Relief Valves: 2-PORT UNION

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 2-PORT UNION

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or...

  • SIGMAMOTOR Pressure Relief Valves: 3-PORT UNION

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 3-PORT UNION

    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or...

  • SIGMAMOTOR Pressure Relief Valves: 2-PORT SOCKET

    Flomotion Systems

    SIGMAMOTOR Pressure Relief Valves: 2-PORT SOCKET

    $4,061.12 - $185,533.20
    SIGMAMOTOR PRESSURE RELIEF VALVES Pressure Relief Valves Sigmamotor pressure relief valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive...
    $4,061.12 - $185,533.20

    Quick Add
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