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RTZ-※/※K Direct Acting Regulator
Direct Acting Regulator use
Direct Acting Regulator applied to reduction and stabilization of the pressure of direct-fired unit, gas-fired boiler, residential gas supply and large
smelting furnace.
Direct Acting Regulator features
1) Large flow capacity and accurate control.
2) Rapid response speed, and able to be used with the solenoid valve.
3) Simple structure, easy maintenance, and easy on-line maintenance.
Technical parameters
Inlet pressure P1：0.01-0.4MPa
Outlet pressure P2：1-50KPa
Stabilized voltage accuracy εP2：±10%
Shut-off pressure Pb：≤1.25P2
Working temperature：-20℃-60℃
Working medium: natural gas, coal gas, liquefied petroleum gas, mine gas and other non-corrosive gases.
Flow Comparison Table
Nm3/h (air)
| Outlet pressure P2（KPa） | Inlet pressure P1（MPa） | RTZ- 31（21）/50K |
RTZ- 31（21）/80K |
RTZ- 31（21）/100K |
RTZ- 31（21）/150K |
RTZ- 31（21）/200K |
| 1-10 | 0.02 | 150 | 200 | 510 | 1140 | 1300 |
| 0.05 | 230 | 288 | 710 | 1800 | 1900 | |
| 0.10 | 340 | 410 | 1050 | 2700 | 2950 | |
| 0.15 | 420 | 540 | 1370 | 2410 | 3500 | |
| 0.20 | 550 | 650 | 1650 | 4250 | 4300 | |
| 0.30 | 725 | 860 | 2200 | 5600 | 5900 | |
| 0.40 | 900 | 4400 | 2750 | 5800 | 6000 | |
| 10-30 | 0.02 | 120 | 450 | 380 | 1000 | 1100 |
| 0.05 | 210 | 280 | 650 | 1500 | 1700 | |
| 0.10 | 340 | 400 | 1030 | 2600 | 2800 | |
| 0.15 | 420 | 540 | 1370 | 3410 | 3600 | |
| 0.20 | 550 | 650 | 1650 | 4200 | 4400 | |
| 0.30 | 725 | 850 | 2200 | 5400 | 5500 | |
| 0.40 | 900 | 1100 | 2750 | 5800 | 5980 |
Dimensions Table
| Specifications | L(mm) | A(mm) | H(mm) | H1(mm) | DiameterDN(mm) | Connecting flange standard |
| RTZ-31（21）/50K | 254 | 435 | 630 | 120 | 50 | GB/T 9119-2000 |
| RTZ-31（21）/80K | 280 | 435 | 680 | 130 | 80 | |
| RTZ-31（21）/100K | 352 | 515 | 750 | 150 | 100 | |
| RTZ-31（21）/150K | 450 | 515 | 940 | 210 | 150 | |
| RTZ-31（21）/200K | 450 | 515 | 940 | 210 | 200 |
