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Model 986, with Isolation Device Automatic air release and vacuum valve, stainless steel 316Ti,for operating range: 0 – 250 PSI (17.2 Bar),outdoor application possible

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Technical features

Connection	Female thread
Operating pressure	250 PSI (17.2 bar)
ventilation cross-section	0,74 in² (480 mm2)
Continuous operation	yes
Max. venting capacity	258,97 cfm (440 m³/h)
Flushing connection	yes
Area of application	plant engineering

Materials

Air valve body: stainless steel
Threaded connection: stainless steel
Float rod/spring: stainless steel
Float ball: POM
Outlet elbow: PE 100 with strainer of stainless steel

Further information

Description Downloads

Models

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Grouped product items
Item number	Medium	operating pressure	Connection	Connection 2	Type	Body	A-Text	Qty
8889867041	waste water	250 PSI (17.2 bar)	2" FNPT	CAMLOK 1 1/2"	Thread	Stainless Steel	8889867041 Specification: RV with Isolation Device, 316Ti Operating Range: 0-250 PSI, ( Model # 986-02) Automatic Air and Vacuum Valves shall be infinitely variable automatic air and vacuum valves designed to allow escape of air for a operating range starting from pressure range: 0,0 through 250 psi ( 0 – 17,2 bar ), close watertight when liquid enters the valve even when the fluid is rising without pressure ( no minimum operating pressure required), allow air to enter in the event of a vacuum, and soft working behaviour as water hammer inhibition realized by roll-on diaphragm and spring mechanism. When the sealing device of the valve is closed an air cushion is trapped between the fluid and sealing area, a mud deflector made of PE allows no contact between fluid and sealing area. The valve body and spindle spring shall be stainless steel grade 316Ti, designed to facilitate disassembly for cleaning and maintenance. The float shall be Delrin® ( POM ); the valve seat and all working parts shall be of corrosion resistant materials. Valves shall be equipped with the necessary attachments, including ball valve, to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for municipal wastewater service. The air valve is provided with an isolation device with a steel plate of hard-rolled stainless steel for manual isolation, straight-through bore when open, two maintenance outlets with cam-lock hose connection and ball valve, lateral outlet for waste air with PE elbow as swivelling device equipped with additional protection grid. After closing the isolation device by hand the air valve can be dismantled from the top flange for maintenance purposes. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water Connection: Thread, 2" FNPT Max. operating pressure: 250 PSI (17.2 bar)		Diameter 5,90" (150 mm) Height 23,82" (605mm) Width 10.75" (273 mm) Length 17" (360 mm) Length 1 5,23" (133 mm) Height 1 22,71" (577 mm) Height 2 10,75" (273 mm) Weight 47,84 LBS Delivery Time by appointment
Diameter 5, 90" (150 mm) Height 23, 82" (605mm) Width 10.75" (273 mm) Length 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 22, 71" (577 mm) Height 2 10, 75" (273 mm) Weight 47, 84 LBS Delivery Time by appointment