The ZDM series automatic circulation pump protection valve is a pump protection device designed to automatically protect the pump from cavitation and instability during low-load operation, especially when conveying hot water. When the pump flow drops below the preset threshold, the bypass valve opens fully to ensure the pump maintains minimum flow. Even if the main line is completely closed, with zero flow, the bypass can still circulate the minimum flow. The integrated multi-stage throttling pressure relief valve in the bypass helps reduce pressure. The ZDM series bypass is designed for high-pressure differential environments, capable of handling up to 30 MPa pressure differences. The specific selection is determined by the factory. The multi-stage pressure reduction M-type bypass effectively mitigates noise from high-speed fluid and prevents damage to valve components caused by cavitation and flashing.
● L-Shaped Design: Can achieve accurate fluid control and streamlined flow regulation in the pipeline network.
●Forged Structure: Provides excellent structural integrity and extended service life, designed for operation under extreme operating conditions.
● Reliable Sealing: Ensure the airtight safety of zero leakage accuracy, making it an indispensable component of mission-critical systems.
| Size | in | 2 | 2 1/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| mm | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | |
| L/L1(RF/BW) | in | 17.75 | 20.00 | 22.75 | 26.5 | 36.00 | 40.25 | 50.00 | 56.00 | / | / |
| mm | 451 | 508 | 578 | 673 | 914 | 1022 | 1270 | 1422 | / | / | |
| L2(RTJ) | in | 17.88 | 21.25 | 23.00 | 26.88 | 36.50 | 40.88 | 50.88 | 56.88 | / | / |
| mm | 454 | 540 | 584 | 683 | 927 | 1038 | 1292 | 1445 | / | / | |
| H | in | 7.50 | 9.00 | 11.00 | 14.12 | 15.75 | 18.88 | 20.50 | 26.38 | / | / |
| mm | 190 | 230 | 280 | 360 | 400 | 480 | 520 | 670 | / | / | |
| W | in | 24 | 32 | 32 | 32 | 32 | 40 | 40 | 40 | / | / |
| mm | 600 | 800 | 800 | 800 | 800 | 1000 | 1000 | 1000 | / | / | |
| WT(Kg) | RF/RTJ | 68 | 95 | 120 | 185 | 675 | 1100 | 1650 | 2300 | / | / |
| BW | 54 | 74 | 91 | 122 | 555 | 918 | 1355 | 2950 | / | / |
| Valve brand | GOOLE |
| Valve Model | HDTM |
| Connection form | flange; welding |
| Product material | Forged steel A105/F304 |
| Nominal diameter | DN40~DN500 |
| Adapt to medium | water, steam, etc |
| Pressure rating | PN16-PN420 |
Q1:What is the primary function?
This valve is used for fluid diversion in pipeline systems, allowing precise control of fluid flow between different paths.
Q2:What material is used?
The valve is made from forged steel, providing added strength and durability for long-term use in industrial applications.
Our valves provide outstanding sealing performance in critical applications, ensuring zero leakage under extreme conditions. The streamlined L-shaped design is designed to enhance spatial efficiency, allowing for seamless integration into tight spaces. Its forged body provides robust durability, ensuring long-term stable operation in harsh industrial environments.
Forged L-shaped three-way ball valves are the ultimate solution for industries that require precise flow management, optimized space configuration, and durability that remains constant during high intensity operating cycles.
