Reval 182
Pilot-Operated Gas Pressure Regulators

Pietro Fiorentini’s Reval 182 is a pilot-controlled pressure regulator for medium and low pressure applications.
The Reval 182 is normally a fail to close regulator that will close under the following conditions:
• Breakage of main diaphragm
• Lack of gas feeding to the pilot loop

This regulator is suitable for use with previously filtered, non-corrosive gases.

Slam Shut Main Characteristics:
• Maximum inlet pressure up to: 275 PSIG for steel body and 246 PSIG for ductile iron
• Range of downstream pressure: 2.8” W.C. to 174 PSIG depending on installed pilot
• Minimum ambient temperature: Execution up to -40° F (to specify in the request)
• Maximum ambient temperature: +140° F
• Flowing gas temperature: up to -4° F + 140° F
• Accuracy class AC: up to 5
• Lock-up pressure class SG: up to 10 depending upon outlet pressure
• Range of outlet pressure: Wh: 2.8″ W.C. to 174 PSIG depending on installed pilot1”
• Nominal dimensions DN: 2″, 2½”, 3″, 4″, 6″, 8″, 10″

Materials:
• Body: Cast steel ASTM A216 WCB for all sizes Ductile iron GS 400-18 ISO 1083 for size ≤ 8”
• Head covers: Die stamped carbon steel
• Stem: AISI 416 Stainless steel
• Valve: ASTM A 350 LF2 Nickel coated on sealing surfaces
• Valve seat: Steel + vulcanized rubber
• Diaphragm: Rubberized canvas
• Seals: Nitrile rubber
• Compression fittings: According to DIN 2353 in zinc-plated stainless steel

Downloads:
Poster
PF Reval 182 Broduct Brochure