0510-85106021
The release valve is installed on the pressure regulating equipment or gas pipeline. When the medium pressure in the equipment and pipeline rises abnormally to the specified value, the valve will open automatically, and then discharge in full quantity to protect the safety of the equipment.
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
| Model | D1 | D2 | D | H | A | B |
|---|---|---|---|---|---|---|
| RFZ-25/*A | 1" | 1 1/2" | 180 | 37 | 100 | 37.5 |
| FZ-40/*A | 1 1/2" | " | 25 | 304 | 115 | 50 |
| RFZ-50/*A | " | 2 1/2" | 25 | 312 | 120 | 55 |
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
| Model | Nominal diameter | L | H | D | ||
|---|---|---|---|---|---|---|
| Thread | flange | Thread | flange | |||
| RFZ-25/*Z | G1 "DN25 | 120 | 184 | 27 | 55 | 160 |
| RFZ-50/*Z | G2 "DN50 | 140 | 76 | 49 | 83 | 160 |
