Double Window Type Sight Flow Indicator

Double Window Type Sight Glass & Drip Tube Type Double Window Sight Flow Indicator is a simple assembly of two glasses on single cast or fabricated body at two opposite size, on average body looks like a cross and it has two side flanges as per customer requested international standard dimensions and another two side installation of toughened or tampered borosilicate glasses. As the body have two sides inspections view arrangements by the help of glass window so it is called as Double (Dual) Window Type Sight Glass Flow Indicator. Sometimes customer also request for single window design sight glass assembly to suit their process requirements. Use of these types of flow indicator is for spot inspection and view of process parameter.

By the use of very few parts total assembly of double window type sight flow indicator complete.  On main part Sight Glass Body, round tempered glass with both side gaskets packing and cover tightening by standard hex bolts and nuts. Gaskets perform as like cushion for borosilicate round toughened glass and help to prevent leakages from joint of transparent glass, cover & body assembly. Sight Glass body end connection also can be Threaded End (BSP/NPT) or Welded End. Sight Glass body length provide as per DIN EN 558-1 Standard.

Depend on process media, its working temperature and working pressure thickness of glass select and selection of the glass is base on DIN 7080 International Standard.

Nivz Valves & Automation manufacturer, stockist, supplier and exporter of Double Window Type Sight Glass - Sight Flow Indicator in Cast Construction (Investment Casting) & Fabricated design to meet an industrial requirement of various applications to inspect the process fluid.

A Leading Double Window Type Sight Glass Manufacturer, Sight Flow Indicator - Exporter, Supplier, Stockist, Importer

Double Window Type Sight Glass & Flow Indicator have options are Plain Type, Drip Tube Type, Flapper Type, Rotor Type & Ball Type Sight Flow Indicator & Full View Glass.

To see very easy maintenance point of view and easy to change of window glasses, dual window model is more trustable than tube type flow indicator and also its physical strength and performance is too far compare ordinary cylindrical tube type view glass.

This type of sight glass better perform against vibration, pressure, temperature, continuous performance in industries like power plant, chemical plant, textile industries, pharmaceutical sector, petrochemical unit which 24 hour working plant and maintenance schedule is big headache for them.

Our technical engineering team consider minimum factor of safety 7 at the time of selection of glass and body shell thickness minimum as per ANSI/ASME B 16.34 Standard.

Sight Glass size up to DN50 (2”) have square shape cover with 04 No. of bolt & nuts, for size DN65 (2-1/2”) & DN80 (3”) have sunflower type rounded shape cover with 06 No. of bolt & nuts, for DN100 (4”) also have sunflower type rounded shape cover with 08 No. of bolt & nuts to tight cover  + glass + gasket assembly. In our standard manufacturing range up to DN100 (4”) Sight Glass Body & Cover casting quality are Investment Casting (Lost Wax Process) method type, which gives superior surface finish at everywhere in small component too.

From big size like DN125 (5”) we do fabricate body or sand casting method casted body provide as any choice of client. Main advantages of fabricated version sight glass body are Low Cost, Medium Weight, Fast Production, Prompt Delivery & Custom made dimensions.

Casted Body material of Sight Flow Indicators are NACE MR 0175, ASTM A 216 GR. WCB (Cast Carbon Steel), ASTM A 352 GR. LCB / LCC (Low Temperature Carbon Steel), ASTM A 351 GR. CF8/CF8M/CF3/CF3M (Stainless Steel 304/316/304L/316L), ASTM A 351 GR. CN 7M (Alloy 20), Duplex Steel D2205-4A, CD4MCU, Super Duplex Steel, Hastelloy C22, Hastelloy C276, Inconel, Monel and others grade on client request.

All varities of Double Window Type Sight Glass Manufacturer, Sight Flow Indicator - Exporter, Supplier, Stockist, Importer by Nivz Valves & Automation.

Hot Oil Jacketed, Hot Water Jacketed, Steam Jacketed, Thermynol Jacketed Sight Glass & Flow Indicators are also manufacture and export by Nivz. For corrosive chemical application Plastic / PTFE / FEP / PFA lined Sight Flow Indicator and Double Sight Glass also manufacture by us.

Type of Double Window Type Sight Glass & Flow Indicator

• Plain Type View Sight Glass Flow Indicator
• Drip Tube Type View Sight Glass Flow Indicator
• Flapper Type View Sight Glass Flow Indicator
• Rotor Type View Sight Glass Flow Indicator
• Ball Type View Sight Glass Flow Indicator
• Circular Flange Type View Sight Glass Flow Indicator

Salient Features of Double Window Type Sight Flow Indicator

• Easy Maintenance
• Available in all most all Material of Construction
• Manufactured to the Highest Standard
• Durable Construction
• Tempered Borosilicate glass standard
• Large View Area
• P.T.F.E. [Teflon®] FEP / PFA Lined Sight Glass
• Fully Jacketed Double Window Type Sight Glass on request
• Special Face to Face Dimension
• Sizes Range from 25MM To 300MM
• Working Pressure up to 25bar
• Material Test Certificate & Pressure Test Certificates furnished on request.
• Tailor Made Dimensions & Design Sight Glass on order basis
• Big Large Size of Sight Glass Flow Indicator