This series features compact size, large flow capacity, stable performance and quick‑and‑easy maintenance. It is applicable for building pressure regulation, industrial and mining enterprises, institutional canteens, small‑size boilers, etc. It can be assembled with valves, filters, pressure regulators, metering units and other components to form pressure regulating cabinets of various configurations.
Inlet Pressure P₁: 0.05‑0.4 MPa
Outlet Pressure P₂: 1‑30 kPa
Flow Range Q: 10‑120 Nm³/h
Pressure‑stabilizing Accuracy A: ±10%
Lock‑up Pressure Pᵦ: ≤1.25 P₂
Nominal Diameter Series: DN20, DN25, DN40, DN50
Connection Type: Connecting flange, complying with GB/T9119‑2000 standard
Working Medium: Non‑corrosive gases such as natural gas, coal gas, liquefied gas and biogas
Inlet Pressure P₁: 0.05‑0.4 MPa
Outlet Pressure P₂: 1‑30 kPa
Flow Range Q: 10‑120 Nm³/h
Pressure‑stabilizing Accuracy A: ±10%
Lock‑up Pressure Pᵦ: ≤1.25 P₂
Nominal Diameter Series: DN20, DN25, DN40, DN50
Connection Type: Connecting flange, complying with GB/T9119‑2000 standard
Working Medium: Non‑corrosive gases including natural gas, coal gas, liquefied petroleum gas, biogas, etc.
Nm³/h ρ = 0.7
| Inlet Pressure P1(MPa) | 0.02 | 0.1 | 0.2 | 0.3 | 0.4 | Flange Connection Standard | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outlet Pressure P2(kPa) | 1.5 | 1.5 | 3.0 | 1.5 | 3.0 | 4.5 | 1.5 | 3.0 | 4.5 | 1.5 | 3.0 | 4.5 | GB/T 9119‑2000 |
| RTZ‑31/25F DN25 | 16 | 20 | 25 | 28 | 30 | 34 | 36 | 38 | 42 | 45 | 55 | 60 | |
| RTZ‑31/40F DN40 | 20 | 37 | 40 | 60 | 64 | 68 | 72 | 75 | 78 | 80 | 87 | 90 | |
| RTZ‑31/50F DN50 | 50 | 55 | 60 | 75 | 85 | 89 | 95 | 98 | 100 | 110 | 120 | 140 | |