A rigid connecting-pipe section for connection between adjacent irrigation hose ends and including a flow control valve having a laterally outwardly projecting actuating stem. The outer end of the stem is provided with an operating handle and an outwardly convex arcuate plate extends lengthwise along ...
The sprinkler valve can be tested for flow by securing the fire extinguishing medium and control fluid pressure and exerting a mechanical force on the stem extension to withdraw the piston from the fluid inlet to allow fluid flow through the valve. 展开 ...
FIGS. 1 and 2 show a conventional pop-up sprinkler100of the type with which the flow control device200described herein may be used. The pop-up sprinkler100comprises a body105, inlet110, stem115, spring120, cap125, wiper seal130, nozzle135and optional check valve140. FIG. 1 shows the po...
A blocking plug is provided for attachment to the handle which operates to block the movement of the valve stem during pressure testing of the fire suppression system. A tension disk is adjustably attached to the inside of the riser to manually adjust the spring tension. In addition, a means...
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3" 300PSI UL LISTED FM APPROVED NON-RISING STEM FLANGED GATE VALVE FOR AUTOMATIC FIRE SPRINKLER SYSTEMS Product Description 1. Nominal Pressure: 300PSI 2. Design Standard: AWWA C515 3. Face to Face Standard: ASME B16.10 4. Size: 2", 2.5...
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10" 300PSI UL LISTED FM APPROVED AWWA C515 STANDARD NON-RISING STEM FLANGED GATE VALVE FOR AUTOMATIC FIRE SPRINKLER SYSTEMS Product Description 1. Nominal Pressure: 300PSI 2. Design Standard: AWWA C515 3. Face to Face Standard:...
Orbit sprinklers rely on a series of control mechanism to work properly. A valve, solenoid and timers all work together to keep the water flowing. If any of these devices is damaged, the sprinkler may not shut off automatically.
The sprinkler-valve includes a body one end of which is adapted for connection to a water line, a valve stem extending axially through the body for controlling flow through the water line, a handle attached to one end of the valve stem and valving surface at other end. A plurality of ...