

Comparison item | 3FT three-proof and one-adjusting multifunctional outdoor fire hydrant | Outdoor fire hydrant |
Specification model | SSFT100/65-1.6FD | SS100/65-1.6 |
Working medium | water | water |
Design work pressure | 1.6MPa | 1.0MPa |
Specification and quantity of outlet | KWS65-2 pcs | KWS65-2 pcs |
Outlet joint material | brass | Cast iron with copper plating |
Flange standard | National standard | Non-standard |
main material | The plug body is QT500-7 ductile iron with a tensile strength of 500MPa. The internal parts are brass and 304 stainless steel. | The bolt body is ordinary cast iron, with a tensile strength of 200MPa, |
The internal parts are cast iron | ||
Sealing method | Lift-up seal, three-stage opening | Down-pressure seal, one-stage opening |
The sealing performance is stable. | If the seal is not tight, it is easy to damage and leak water. | |
Regulating performance | The pressure regulating plate is opened in three stages to realize the function of pressure reducing, stabilizing and regulating. | Without any pressure regulating function |
Anti-collision performance | When hit by an external force, the anti-collision disk will automatically fall off, and the piston will automatically seal the water source without water leakage. The repair time is short and the repair is convenient, and the repair cost is reduced by 80%. | There is no anti-collision function, crushing rupture, difficult maintenance, long time and high maintenance cost. The water source cannot be closed, and a lot of water is lost. |
Antifreeze function | Coaxial linkage, closed discharge synchronization structure, the remaining water in the ground plug is automatically emptied, the emptying time is less than 30 seconds, without any heat preservation, and it is not frozen at minus 50°C. | The glass ball of the plastic valve body leaks water and is easily broken under high pressure. The drain port is less than 3 mm, which is easy to block and fail, and the failure rate of the spring is very high. |
Anti-theft function | Dedicated magnetic encryption switch anti-theft water | Ordinary disk, high failure rate |
Service life | 10 years | 3-5 years |
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