Model 986, Automatic air release and vacuum valve, stainless steel 316Ti, for operating range: 0 – 250 PSI (17.2 Bar) (Tested maximum pressure 375 PSI)
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, Raw Water, Reclaim Water, Industrial application |
| Notice 1 | Tested maximum pressure 375 PSI |
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
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
Description:
Automatic and infinitely variable air valve for waste water applications.
Operating Pressure: 250 PSI (17.2 Bar)
Operating Range: 0 – 250 PSI (0 -17.2 Bar)
Tested maximum pressure 375 PSI
Valve seat does not contact the medium (air cushion). Two connections for effective flushing during maintenance work (top inlet flushing connection). All mechanical parts are manufactured of corrosion-resistant materials; valve body is epoxy-coated steel. Read and follow the operating and maintenance instructions. Please, mention the intended use for potable water application on the order form.
Valve Maintenance:
Air valves must be tested for function and maintained at least once per year. Valve must be shut off and flushed at both lateral connections.
Infinitely variable surge protection
In general understanding the surge protection of an ARV is a measure taken to protect the pipeline system. Filling of the pipeline should be within international standards to prevent water hammer (5ft/s) or (0,25m/s) and correct opening and closing of valves is fundamental.
The design of the H-TEC 986 ARV allows for large volumes of air (in/out). The unique function for infinite air release/intake, due to the automatic movements of the diaphragm in operation modus, (e.g. Fluid level rises, diameter of orifice is reducing infinitely variable) soft sealing and slowing the water column preventing water hammer.
Traditional ARV`s operate with two functions: open or closed. The rubber diaphragm of the H-TEC model 986 is infinitely variable operating. In case of increased velocity in the valve the float will lift slow and throttle down the air flow. This function slows the water column, water hammer from this ARV will not occur. The H-TEC 986 ARV has an integrated pressure spring on the vertical shaft attached to the float. This mechanical feature protects from vibrations, smooth function, prevents amplified movements. No additional surge prevention unit necessary
Operating Pressure: 250 PSI (17.2 Bar)
Operating Range: 0 – 250 PSI (0 -17.2 Bar)
Tested maximum pressure 375 PSI
Valve seat does not contact the medium (air cushion). Two connections for effective flushing during maintenance work (top inlet flushing connection). All mechanical parts are manufactured of corrosion-resistant materials; valve body is epoxy-coated steel. Read and follow the operating and maintenance instructions. Please, mention the intended use for potable water application on the order form.
Valve Maintenance:
Air valves must be tested for function and maintained at least once per year. Valve must be shut off and flushed at both lateral connections.
Infinitely variable surge protection
In general understanding the surge protection of an ARV is a measure taken to protect the pipeline system. Filling of the pipeline should be within international standards to prevent water hammer (5ft/s) or (0,25m/s) and correct opening and closing of valves is fundamental.
The design of the H-TEC 986 ARV allows for large volumes of air (in/out). The unique function for infinite air release/intake, due to the automatic movements of the diaphragm in operation modus, (e.g. Fluid level rises, diameter of orifice is reducing infinitely variable) soft sealing and slowing the water column preventing water hammer.
Traditional ARV`s operate with two functions: open or closed. The rubber diaphragm of the H-TEC model 986 is infinitely variable operating. In case of increased velocity in the valve the float will lift slow and throttle down the air flow. This function slows the water column, water hammer from this ARV will not occur. The H-TEC 986 ARV has an integrated pressure spring on the vertical shaft attached to the float. This mechanical feature protects from vibrations, smooth function, prevents amplified movements. No additional surge prevention unit necessary
Notes:
- Tested maximum pressure 375 PSI
Operating Instructions
Technical Documents
Diversity
Product supplements and accessories
Maintenance
fitting spareparts
All Spare Parts
009S02
Float Spindle, complete
609S00
Locking Ring
986S00
Function Unit + SS-Flange
986S01
Debris Shield
986S02
Damper Ring
986S03
Diaphragm
986S04
O-Ring 34.0 mm x 3.0 mm
986S05
Float Complete
986S06
Upper Air Valve Part
986S07
Cup for Diaphragm
986S08
Debris Screen
986S09
Pressure Spring
986S10
UV Shield
986S12
Function Unit without Flange
