VERMONT TECHNOLOGIES PVT.LTD. VERMONT TECHNOLOGIES PVT.LTD.
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Off Strainers cum Air Eliminators

The combination Offset Strainer cum Air Eliminator ensures removal of solid impurities, air or vapour from the liquid before they enter the bulk meter. It is essential accessory for a trouble free and accurate bulk meter operation.
Offset Strainers cum Air Eliminators
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DESIGN FEATURES

• Low pressure drop due to large filter element area
• Compact dimensions for minimum installation space
• Threaded ports for connecting differential pressure gauge or temperature probe
• High venting capacity air eliminator

   
PRINCIPLE OF OPERATION
 
The Offset Strainer cum Air Eliminator is fitted on bulk meter inlet side and is specifically used with preset meters. The wire mesh filter element is positively clamped by a spider, stud and nut arrangement. A drain plug is provided to facilitate servicing. Liquid impurities get filtered on passing through the filter element and the clean liquid flows through the bulk meter. For new installations, it is advisable to first thoroughly flush lines before installing the bulk meter. Periodic filter element inspection and cleaning is necessary to prolong the life of the bulk meter.

The air eliminator is mounted on top of the strainer body. It consists of a stainless steel float connected to a pilot valve via multiple linkages. When the air collects in the air eliminator, the buoyant force acting on the float reduces, the float drops down along with the pilot valve connected to the linkage and the air escapes through the main valve. As liquid rises in the air eliminator, the float rises to lift the pilot valve, thereby closing the air release opening of main valve.
   
   
SPECIFICATIONS
 
STRAINER
AIR ELIMINATOR
• Type : Wire mesh filter element
• Type : Float actuated pilot operated
• Mesh : 20 / 40 / 60 / 80
• Maximum Working Pressure : 10.54 kg/cm2
• Size : 80 mm (3") NB, 100 mm (4") NB
• Temperature : Upto 70°C
• End Connections : 150 Class, ANSI B 16.5, FF/RF
• Maximum Working : 10.54 kg/cm2
• Pressure Temperature : Upto 70°C
• Mounting : At bulk meter inlet
 
 
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line-strainers-cum-air-eliminators
   
line-strainers-cum-air-eliminators
   
MATERIALS OF CONSTRUCTION
STRAINER
AIR ELIMINATOR
Body : Carbon Steel (Fabricated) (Standard)
Stainless Steel AISI 316 (Fabricated) (Optional)
Body : Carbon Steel (Fabricated) (Standard)
Stainless Steel AISI 316 (Fabricated) (Optional)
Basket : Stainless Steel AISI 304 mesh with Stainless Steel AISI 304 reinforcement sheet
Float : Stainless Steel AISI 304
Seals : Nitrile (Standard) Viton (Optional)
Linkages : Aluminium
Seals : Nitrile (Standard) Viton (Optional)