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Industrial Refrigeration Parts - In-Stock & Ready to Ship Across Canada & the US
Industrial Refrigeration Parts - In-Stock & Ready to Ship Across Canada & the US

Pressure Controls

Buy industrial refrigeration pressure controls online and optimize your system's performance and safety. Our comprehensive selection features high-quality pressure control products from leading brands like Parker, Hansen, and Danfoss. Browse our inventory of pressure valves, sensors, transmitters, and control modules designed for various refrigerants including ammonia, CO2, and synthetic refrigerants. Whether you're upgrading your existing system, replacing worn components, or expanding your pressure control capabilities, find the perfect solution for your industrial refrigeration needs.

  • Parker Refrigerating Specialties: 1-1/2" PVS5-S4 HEV HV 1-1/2" SW 120G

    Parker
    Original price $4,767.40 - Original price $4,767.40
    Original price
    $4,767.40
    $4,767.40 - $4,767.40
    Current price $4,767.40
    In stock

    Details 1-1/2 PVS5-S4 HEV HV 1-1/2SW 120G More Information Weight 81.400000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 1", PVS5-S4, Hand Expansion Valve, Stop/Check, 1-1/4" Socket Weld, 120

    Parker
    Original price $3,201.47 - Original price $3,201.47
    Original price
    $3,201.47
    $3,201.47 - $3,201.47
    Current price $3,201.47
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

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  • Parker Refrigerating Specialties 1" PVS5-A4 PEV BK (1, 2 & 5)

    Parker
    Original price $7,465.19 - Original price $7,465.19
    Original price
    $7,465.19
    $7,465.19 - $7,465.19
    Current price $7,465.19
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

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  • Parker Refrigerating Specialties: 1", PVS5-S4, Hand Expansion Valve, 1" Socket Weld, 120

    Parker
    Original price $2,950.86 - Original price $2,950.86
    Original price
    $2,950.86
    $2,950.86 - $2,950.86
    Current price $2,950.86
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

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  • Parker Refrigerating Specialties: 3/4" PVS5-S4 30% HEV SCK 3/4" SW 120G QD

    Parker
    Original price $3,057.33 - Original price $3,057.33
    Original price
    $3,057.33
    $3,057.33 - $3,057.33
    Current price $3,057.33
    In stock

    Details 3/4 PVS5-S4 30% HEV SCK 3/4SW 120G QD More Information Weight 50.600000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, 3/4" Socket Weld, 120

    Parker
    Original price $2,660.11 - Original price $2,660.11
    Original price
    $2,660.11
    $2,660.11 - $2,660.11
    Current price $2,660.11
    In stock

    Details 3/4 PVS5-S4 30% HEV 3/4SW 120 More Information Weight 38.300000 Manufacturer Parker RS - Refrigerating Specialties Condition New Port Size ...

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  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 65%, Hand Expansion Valve, 3/4" Socket Weld, 120G, QD

    Parker
    Original price $2,806.71 - Original price $2,806.71
    Original price
    $2,806.71
    $2,806.71 - $2,806.71
    Current price $2,806.71
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 65%, Hand Expansion Valve, Stop/Check, 3/4" Socket Weld120R, QD

    Parker
    Original price $3,057.33 - Original price $3,057.33
    Original price
    $3,057.33
    $3,057.33 - $3,057.33
    Current price $3,057.33
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, Hand Expansion Valve, Stop/Check, 3/4" Socket Weld, 120, GQD

    Parker
    Original price $3,057.33 - Original price $3,057.33
    Original price
    $3,057.33
    $3,057.33 - $3,057.33
    Current price $3,057.33
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, Hand Expansion Valve, Stop/Check, 3/4" Socket Weld, 120G

    Parker
    Original price $3,057.33 - Original price $3,057.33
    Original price
    $3,057.33
    $3,057.33 - $3,057.33
    Current price $3,057.33
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4" PVS5-S4 HEV SCK 3/4" SW 120

    Parker
    Original price $2,910.73 - Original price $2,910.73
    Original price
    $2,910.73
    $2,910.73 - $2,910.73
    Current price $2,910.73
    In stock

    Details 3/4 PVS5-S4 HEV SCK 3/4SW 120 More Information Weight 49.700000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 3/4" PVS5-S4 HEV HV 3/4" SW 120

    Parker
    Original price $2,660.11 - Original price $2,660.11
    Original price
    $2,660.11
    $2,660.11 - $2,660.11
    Current price $2,660.11
    In stock

    Details 3/4 PVS5-S4 HEV HV 3/4SW 120 More Information Weight 51.600000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, Stop/Check, 1-1/4" Butt Weld, DN, 230, QD

    Parker
    Original price $2,910.73 - Original price $2,910.73
    Original price
    $2,910.73
    $2,910.73 - $2,910.73
    Current price $2,910.73
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, Stop/Check, 1" Butt Weld, DN, 230, QD

    Parker
    Original price $2,910.73 - Original price $2,910.73
    Original price
    $2,910.73
    $2,910.73 - $2,910.73
    Current price $2,910.73
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, Stop/Check, 3/4" Butt WeldDN, 230, QD

    Parker
    Original price $2,656.84 - Original price $2,656.84
    Original price
    $2,656.84
    $2,656.84 - $2,656.84
    Current price $2,656.84
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4" PVS5-S4 65% HEV SCK 3/4BW 230 QD

    Parker
    Original price $2,910.73 - Original price $2,910.73
    Original price
    $2,910.73
    $2,910.73 - $2,910.73
    Current price $2,910.73
    In stock

    Details 3/4 PVS5-S4 65% HEV SCK 3/4BW 230 QD More Information Weight 48.000000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, 1" Butt Weld, 230, QD

    Parker
    Original price $2,660.11 - Original price $2,660.11
    Original price
    $2,660.11
    $2,660.11 - $2,660.11
    Current price $2,660.11
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 3/4", PVS5-S4, 30%, Hand Expansion Valve, Stop/Check, 3/4" Butt Weld, 230, QD

    Parker
    Original price $2,910.73 - Original price $2,910.73
    Original price
    $2,910.73
    $2,910.73 - $2,910.73
    Current price $2,910.73
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details
  • Parker Refrigerating Specialties: 1-1/2" PVS4-S4 HV 2" SW 120

    Parker
    Original price $3,867.32 - Original price $3,867.32
    Original price
    $3,867.32
    $3,867.32 - $3,867.32
    Current price $3,867.32
    In stock

    Details 1-1/2 PVS4-S4 HV 2SW 120 More Information Weight 57.800000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 1-1/2" PVS4-S4 HV 1-1/2" SW 120G QD

    Parker
    Original price $4,013.92 - Original price $4,013.92
    Original price
    $4,013.92
    $4,013.92 - $4,013.92
    Current price $4,013.92
    In stock

    Details 1-1/2 PVS4-S4 HV 1-1/2SW 120G QD More Information Weight 60.300000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 1-1/4" PVS4-S4 HV 1-1/4" SW 120R QD

    Parker
    Original price $3,020.47 - Original price $3,020.47
    Original price
    $3,020.47
    $3,020.47 - $3,020.47
    Current price $3,020.47
    In stock

    Details 1-1/4 PVS4-S4 HV 1-1/4SW 120R QD  

  • Parker Refrigerating Specialties: 1-1/4" PVS4-S4 HV 1-1/4" SW 120G

    Parker
    Original price $3,020.47 - Original price $3,020.47
    Original price
    $3,020.47
    $3,020.47 - $3,020.47
    Current price $3,020.47
    In stock

    Details 1-1/4 PVS4-S4 HV 1-1/4SW 120G More Information Weight 59.200000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 1-1/4" PVS4-A4B RA HV 1-1/4" SW 120G

    Parker
    Original price $3,494.67 - Original price $3,494.67
    Original price
    $3,494.67
    $3,494.67 - $3,494.67
    Current price $3,494.67
    In stock

    Details 1-1/4 PVS4-A4B RA HV 1-1/4SW 120G More Information Weight 63.300000 Manufacturer Parker RS - Refrigerating Specialties Condition New

  • Parker Refrigerating Specialties: 1", PVS4-S4, 1-1/4" Socket Weld, 120G

    Parker
    Original price $2,552.82 - Original price $2,552.82
    Original price
    $2,552.82
    $2,552.82 - $2,552.82
    Current price $2,552.82
    In stock

    Details The PVS is an innovative design which combines several different functions into one compact valve station. It was designed for simplified i...

    View full details

Frequently Asked Questions (FAQs) about Refrigeration Pressure Controls

What is the purpose of pressure controls in refrigeration systems?

Pressure controls regulate and monitor the pressure within refrigeration systems. They help maintain optimal operating conditions, protect system components from excessive pressure, and ensure efficient and safe operation of the refrigeration cycle.

How do I choose the right pressure control for my system?

Consider factors such as the type of refrigerant used, the pressure range required, compatibility with your existing system, and specific features needed (e.g., electronic vs. mechanical, single vs. dual pressure). Always consult your system specifications and a refrigeration professional when selecting pressure controls.

What's the difference between a pressure sensor and a pressure transmitter?

While both measure pressure, a sensor typically provides a raw signal, while a transmitter includes additional electronics to convert the sensor signal into a standardized output (e.g., 4-20mA) that's easier to integrate with control systems.

Why are there different pressure controls for different refrigerants?

Different refrigerants have varying pressure-temperature relationships and chemical properties. Pressure controls designed for specific refrigerants ensure accurate readings and proper material compatibility, which is crucial for system efficiency and safety.

What is a superheat/subcool controller?

A superheat/subcool controller, like the Hansen NH3 Superheat/Subcool Controller, regulates the amount of superheat (heat absorbed beyond the boiling point) or subcooling (cooling below the condensing temperature) in the refrigeration cycle. This helps optimize system efficiency and prevent issues like liquid slugging in compressors.

How often should pressure controls be calibrated or replaced?

Calibration frequency depends on usage, environmental conditions, and manufacturer recommendations. Generally, annual calibration is recommended. Replacement is typically necessary if the control fails to maintain accurate pressure regulation or shows signs of wear. Regular system checks can help determine when replacement is needed.

What are the benefits of using electronic pressure controls over mechanical ones?

Electronic pressure controls, such as the Danfoss AKS 33 Pressure Transmitter, often offer greater accuracy, the ability to integrate with digital control systems, and easier adjustment of setpoints. They can also provide more detailed data for system monitoring and optimization.

What is a pressure pilot kit used for?

Pressure pilot kits, like the Hansen Outlet Pressure Pilot Kit, are used in conjunction with main valves to provide precise pressure regulation. They sense system pressure and control the operation of the main valve, allowing for more accurate and responsive pressure control in large industrial refrigeration systems.

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