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Model 986, Automatic air release and vacuum valve, epoxy powder coated, for operating range: 0 – 250 PSI (17.2 Bar) (Tested maximum pressure 375 PSI)

Medium

Models Product supplements Spareparts BIM Files

Technical features

Bottom connection	Female thread, Flange
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, Raw Water, Reclaim Water, Industrial application
Notice 1	Dimensions 6” and 8” on request!
Notice 2	Tested maximum pressure 375 PSI

Materials

Valve body: epoxy-coated steel.
Threaded connections: stainless steel 316
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	Type	A-Text
8889860042	waste water	250 PSI (17.2 bar)	2" FNPT	Thread	8889860042 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water	Diameter 2,67" (68 mm) Height 23,93" (608 mm) Width 10.75" (273 mm) Length 1 5,23" (133 mm) Height 1 22,71" (577 mm) Height 2 10.75" (273 mm) Delivery Time by appointment
Diameter 2, 67" (68 mm) Height 23, 93" (608 mm) Width 10.75" (273 mm) Length 1 5, 23" (133 mm) Height 1 22, 71" (577 mm) Height 2 10.75" (273 mm) Delivery Time by appointment
8889860062	waste water	250 PSI (17.2 bar)	3" FNPT	Thread	8889860062 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water Connection: Thread, 3" FNPT Max. operating pressure: 250 PSI ( 17.2 bar)	Diameter 3,74" (95 mm) Height 23,93" (608 mm) Width 10,75" (273 mm) Length 14,17" (360 mm) Length 1 5,23" (133 mm) Height 1 22,71" (577 mm) Height 2 10,75" (273 mm) Weight 40,12 LBS Delivery Time by appointment
Diameter 3, 74" (95 mm) Height 23, 93" (608 mm) Width 10, 75" (273 mm) Length 14, 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 22, 71" (577 mm) Height 2 10, 75" (273 mm) Weight 40, 12 LBS Delivery Time by appointment
8889860520	waste water	250 PSI (17.2 bar)	2" ANSI	Flange	8889860520 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water Connection: Flange, 2" ANSI Max. operating pressure: 250 PSI (17.2 bar)	Diameter 6" (152,4 mm) Height 24,37" (619 mm) Width 10,75" (273 mm) Length 14,17" (360 mm) Length 1 5,23" (133 mm) Height 1 23,17" (588.5 mm) Height 2 11,22" (285 mm) Weight 44,09 LBS Delivery Time by appointment
Diameter 6" (152, 4 mm) Height 24, 37" (619 mm) Width 10, 75" (273 mm) Length 14, 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 23, 17" (588.5 mm) Height 2 11, 22" (285 mm) Weight 44, 09 LBS Delivery Time by appointment
8889860820	waste water	250 PSI (17.2 bar)	3" ANSI	Flange	8889860820 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water Connection: Flange, 3" ANSI Max. operating pressure: 250 PSI (17.2 bar)	Diameter 7,5" (190,5 mm) Height 24,37" (619 mm) Width 10,75" (273 mm) Length 14,17" (360 mm) Length 1 5,23" (133 mm) Height 1 23,17" (588.5 mm) Height 2 11,22" (285 mm) Weight 48,94 LBS Delivery Time by appointment
Diameter 7, 5" (190, 5 mm) Height 24, 37" (619 mm) Width 10, 75" (273 mm) Length 14, 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 23, 17" (588.5 mm) Height 2 11, 22" (285 mm) Weight 48, 94 LBS Delivery Time by appointment
8889861020	waste water	250 PSI (17.2 bar)	4" ANSI	Flange	8889861020 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water Connection: Flange, 4" ANSI Max. operating pressure: 250 PSI (17.2 bar)	Height 24,37" (619 mm) Width 10.75" (273 mm) Length 14,17" (360 mm) Length 1 5,23" (133 mm) Height 1 23,17" (588.5 mm) Height 2 11,22" (285 mm) Weight 55,12 LBS Delivery Time by appointment
Height 24, 37" (619 mm) Width 10.75" (273 mm) Length 14, 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 23, 17" (588.5 mm) Height 2 11, 22" (285 mm) Weight 55, 12 LBS Delivery Time by appointment
8889862020	waste water	250 PSI (17.2 bar)	8" ANSI	Flange	8889862020 Specification: Automatic Air Release and Vacuum Valve, epoxy coated Operating Range: 0 – 250 PSI (Model # 986-03 ) Combination Air Valves shall conform to the following: 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 spindle spring shall be stainless steel, grade 316Ti, the body shall be steel epoxy powder coated (min. thickness of coating: 10 mil) 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 and cam-lock fitting to permit back flushing after installation without dismantling the valve. Valves shall be recommended by the manufacturer for wastewater service. Air and vacuum valves shall be manufactured by Hawle. Medium: waste water	Height 24,7" (627 mm) Width 10,75" (273 mm) Length 14,17" (360 mm) Length 1 5,23" (133 mm) Height 1 23,17" (588.5 mm) Height 2 11,22" (285 mm) Weight 73,85 LBS Delivery Time by appointment
Height 24, 7" (627 mm) Width 10, 75" (273 mm) Length 14, 17" (360 mm) Length 1 5, 23" (133 mm) Height 1 23, 17" (588.5 mm) Height 2 11, 22" (285 mm) Weight 73, 85 LBS Delivery Time by appointment