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Relief Valves

Tamo offer a wide range of zero leakage relief valves with cracking pressures from 0.2 to 10,500 psi ( 14 mbar to 724 bar).
Body materials include brass, stainless steel and aluminium.
Operating temperatures cover -196 deg C to +288 deg C. Inline and pop off configurations are available.

  • 500 series
  • 5100 series
  • 5300
  • L500
  • HP500
  • CPC- Cryolab
  • R6000 series
  • General purpose safety valves

Product description

This low pressure, zero leakage relief valve available in discharge to atmosphere or in-line versions. A deflector cap is available on the discharge to atmosphere version. The cracking pressure is accurate to +/- 5%. The relief valve is adjustable, but tamper proof when installed.

Cracking Pressure Range:

  • 0.5 to 150 psig (10 bar) - PED approved version available

Body Materials:

  • Aluminium -1/8”to 1”NPT
  • Brass - 1/8” to 1 ” NPT
  • 316 St St – 1/8” to 1” NPT

O-ring Materials:

  • Viton, Buna-n, and Neoprene standard


Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.


(PDF) Download datasheet

Product description

This relief valve is zero leakage up to 95% of cracking pressure and  is available in discharge to atmosphere or in-line versions. The cracking pressure is accurate to +/- 5%. The relief valve is adjustable, but tamper proof when installed. A wide range of cracking pressures are available.

Cracking Pressure Range:

  • 10 to 2240 psig (0.7 to 165 bar) - PED approved version available

Body Materials:

  • Brass - 1/8” and 1” NPT
  • 303 St St - 1/8” and 1” NPT – not PED approved
  • 316 St St – 1/8” and 1” NPT

O-ring Materials:

  • Viton, Buna-n, Ethylene propylene and Neoprene standard

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.


(PDF) Download datasheet

Product description

Zero leakage up to 95% of cracking pressure. This high pressure relief valve is externally adjustable. Cracking pressure is accurate to +/- 5%. There is no pressure rise with increasing flow and it is resistant to chatter and squeal.

Cracking Pressure Range:

  • 400 to 10,500 psig (28 to 724 bar) - PED approved version available

Body Materials:

  • Brass - 1/8” and 1/4” NPT
  • 303 St St - 1/8” and 1/4” NPT (PED not available)
  • 316 St St – 1/8” and 1/4” NPT

O-ring Materials:

  • Viton, Buna-n, and Neoprene standard


(PDF) Download datasheet

Product description

This extremely low pressure, zero leakage relief valve available in discharge to atmosphere or in-line versions. A deflector cap is available on the discharge to atmosphere version. The cracking pressure is accurate to +/- 5%. The relief valve is adjustable, but tamper proof when installed.

Cracking Pressure Range:

  • •0.2 to 15 psig (1 bar) Body Materials:
  • •316 St St – ¼” to ½” NPT

O-ring Materials:

  • •Viton, Buna-n, and Neoprene standard

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.


(PDF) Download datasheet

Product description

A zero leakage relief valve available in discharge to atmosphere or in-line versions. The cracking pressure is accurate to +/- 5%. The relief valve is adjustable, but tamper proof when installed.

Cracking Pressure Range:

  •  50 to 575 psig (10 to 40 bar) - PED approved version available

Body Materials:

  • Brass - 1/4” and 1/2 ” NPT
  • 316 St St – 1/4” and 1/2 ” NPT

O-ring Materials:

  • Viton, Buna-n, and Neoprene  standard

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.


(PDF) Download datasheet

Product description

This pressure relief disc features vacuum tight sealing and has applications for the protection of the outer wall of high vacuum containers, pressure equalisation of volume containers, pressure relief for vacuum insulated piping systems & for a breather valve for storage tank vents. Cracking pressures up to 15psi (1 bar) are available.

Cracking Pressure Range:

  • 2 to 6 psig (0.1 to 0.4 bar)standard, optional up to 15psig (1 bar)

Size:

  • ½” to 1” Threaded connection, 1 ½” to 3” Flanged or Welded connection.

Tamo can also offer a special version with KF flanged inlet and outlet connections.

Body Materials:

  • 300 series St St or 6061 aluminium

O-ring Materials:

  • Viton

Seat Leakage:

  • Mass spec. Less than 1x10 minus 9 scc GHe/sec (Exclusive of o-ring permeability) at ambient temperature.

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and connections.


(PDF) Download datasheet

Product description

An externally adjustable right angle relief valve that is available in low, medium and high and extra high pressure ranges. Provides users with high accuracy and consistency of cracking and reseal pressures.

Cracking Pressure Range:

  • 5 to 6000 psig (0.5 to 414 bar) - PED approved version available

Body Materials:

  • 316 St St – 1/4” NPT and 6, 8 and 12mm Gyrolok

O-ring Materials:

  • Viton, Neoprene, Buna N and Ethylene propylene standard

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.


(PDF) Download datasheet

Product description

Available through our on-line Fluid Power Trade Counter we can supply various general purpose relief valves.These are normally held in stock for next day delivery.

Cracking Pressures:

  • 0.5 to 0 to 190 bar.

Connection Sizes:

  • ¼” to 3”

Visit our on-line Fluid Power Trade Counter

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