Safety valve - SP 80 T | Berluto | Philippopoulos s.a.
Safety valve - SP 80 T | Berluto | Philippopoulos s.a.

Safety valve - SP 80 T | Berluto

Berluto SP 80 T Pressure Relief Valve

Berluto SP 80 T is an angle-type, direct-acting, spring-loaded pressure relief/overflow valve. Designed for pump protection, bypass lines, and overpressure control in liquid, gas, and steam networks. Operation is proportional, without pneumatic or electric actuators.

Technical Specifications

  • Type: angle, adjustable, spring-loaded relief valve
  • DN: 10 to 50
  • Connection: female thread ISO 228, G 3/8" to G 2"
  • Set pressure: 0.2 to 20 bar
  • Spring ranges: 0.2–0.8 / 0.5–2.5 / 2–12 / 12–20 bar
  • Body: red brass
  • Wetted parts: brass
  • Spring cover: gas-tight construction
  • SP 80 T sealing: PTFE
  • Temperature: -60°C to +225°C
  • Compliance: PED 2014/68/EU

SP 80 T vs SP 80 N

The SP 80 T version uses PTFE sealing, allowing higher operating temperatures than the NBR version. NBR is limited to approx. +100°C, while PTFE enables operation up to +225°C. The 12–20 bar range is only available with PTFE sealing.

Suitable Media

SP 80 T is used for:

  • steam
  • compressed air and gases
  • water and technical liquids
  • oil
  • unleaded gasoline
  • benzene (after compatibility check)

Industrial Applications

  • pump bypass protection
  • oil or fuel transfer circuits
  • auxiliary low/medium pressure steam networks
  • compressed air lines
  • small process skids requiring local pressure relief

Selection and Maintenance

Select based on set pressure, relief flow, temperature, medium, and thread size. For continuous bypass, monitor thermal load of return medium. Contaminants or particles on the seat may cause leakage after opening, especially in systems without upstream filtration.

FAQ

Is this a full-lift safety valve?
No. It is a proportional relief/overflow valve.

When is the T version selected?
When PTFE sealing, higher temperature, or up to 20 bar set pressure is required.

Is an external actuator needed?
No. Operation is mechanical via process pressure and spring force.

Datasheet and documents

Description

SP 80 T

Direct-acting, spring-loaded angle overflow valve for steam and gaseous media and liquids. Resistant to oil, lead-free petrol and benzene.

Nominal size DN 10 up to DN 50

Working pressure 0,2 - 20 bar

Temperature range up to 225°C

Technical data

techdata_sp80_sp85_eng_1038

Certificates

CE-certification according to the European Pressure Equipment Directive is mandatory for numerous products and delivery areas. Other certificates, however, are certificates of individual quality, such as DVGW and DIN EN ISO 9001, which stands for the internal quality management system  with its extensive functional and performance checks. The particularly strict regulations of the national rules and regulations guarantee the highest possible safety - especially when it comes to the reliability in your plant.

zertdvgw_rsv_o.pdf

iso_9001_2015_en.pdf

baumuster_dvgw-zertifikat_bis-2028_403-6.pdf