Release valve RFZ- * / * type

• direct action of spring, sensitive action, fast response speed and high adjustment accuracy
  

• it can automatically return to its seat after repeatedly taking off, and it is convenient to operate and maintain when it is closed tightly.
  

• compact structure, easy installation and maintenance, online adjustment of discharge pressure
  

• good repetitive performance, stable and reliable, long service life
  

• set pressure PS (Kpa):2～ 5; 5
  5;5～15;15～50;50-100
  

• discharge pressure PD: ≤ 1.05ps ◆ reseating pressure PR: ≥ 0.9ps
  

• back pressure Pb: ≤ 0.5ps ◆ opening height H: 1 / 4d0 (d0 is the diameter of flow channel)
  

• rated discharge coefficient KDR: 0.8
  

• working temperature T: - 20 ℃ ~ 60 ℃
  

• nominal pressure: PN6
  

• nominal diameter: DN25 DN40 DN50
  

Main structure and installation dimension

Type RFZ-*/*Z

Product characteristics

• the spring has direct action, sensitive action, fast response speed and high adjustment accuracy
  

• it can automatically return to the seat, close tightly and discharge in equal diameter after repeatedly starting and jumping.
  

• no need to disassemble and grind the valve core and valve seat, convenient operation and maintenance
  

• when the medium contains corrosive substances such as sulfur and benzene, anti-corrosive materials can be selected
  

• applicable media: natural gas, artificial gas, liquefied petroleum gas, air, etc            Main technical parameters
  

• set pressure PS (kPa): 1 ～ 55 ～ 15 15 ～ 30
  

• discharge pressure PD: ≤ 1.05ps
  

• reseating pressure PR: ≥ 0.9ps
  

• back pressure Pb: ≥ 0.5ps
  

• opening height H: 1 / 4d0 (d0 is flow path diameter)
  

• rated discharge coefficient KDR: 0.8
  

• working temperature T: - 20 ℃ ~ 60 ℃
  

• nominal pressure: pn0.4
  

• nominal diameter: G1 "G1 1 / 2" G2 "DN25 DN50
  

Main structure and installation dimension