Double Window Type Sight Glass, Sight Flow Indicator, Drip Tube, Full View Design

Double Window Type Sight Glass and Sight Flow Indicator (Flanged & Threaded End)
Sight Glass with Flanged End
Sight Flow Indicator with Flanged End
Double Door Type Sight Glass,
Drip Tube Type Sight Flow Indicator
Dual Door Body Sight Flow Indicator
Dual Window Type Sight Glass
Large Full View Type Double Window Sight Glass, Flow Indicator
Double Window Type Sight Flow Indicator for High Pressure
Flapper Type Double Window Sight Glass, Flow Indicator
Dancing Ball Type Double Window Sight Glass, Flow Indicator
Rotor Type Double Window Sight Glass, Flow Indicator
Steam Jacketed Double Window Type Sight Glass Flow Indicator
Double Window Type Sight Glass
Double Window Type Flow Indicator

Manufacturer, Exporter, Stockist, Supplier & Importer

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Cast Heavy Duty Body as per Design Standard - ASME B 16.34/BS EN 12516-I
End Connection - Flanged End, Raised Face
Pressure Rating - 125# / 150# / 300# / PN6 / PN10 / PN16 / PN25 / PN40
Sight Glass Manufacturing Range - DN25/25mm/1"/One Inch, DN32/32mm/1-1/4"/One and Quarter Inch, DN40/40mm/1-1/2"/One and Half Inch, DN50/50mm/2”/Two Inch, DN65/65mm/2-1/2”/Two and Half Inch, DN80/80mm/3”/Three Inch, DN100/100mm/4”/Four Inch, DN125/125mm/5”/Five Inch, DN150/150mm/6”/Six Inch, DN200/200mm/8”/Eight Inch, DN250/250mm/10”/Ten Inch, DN300/300mm/12”/Twelve Inch and more big size on order basis.

Double Window Sight Glass (Size 1" to 4" - Investment Casting Body) - Model Series: SDWI16
Double Window Sight Glass (Size 5" to 12" - Fabricated Body) - Model Series: SDWF16

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Dual Window or Double Type Sight Glass & Drip Tube Type 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 side inspection view arrangements by the help of glass window so it is called as Double 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 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.

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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.

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

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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

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Design & Testing International Standard of Sight Glass

Design Standard	:	ASME B 16.34
Inspection & Testing Standard	:	BS EN ISO 12266 - I (BS 6755 - I) / API 598 / ISO 5208
Flange To Flange Distance	:	As Per DIN EN 558-1
End Connection	:	Flanged End to ANSI B 16.5, Class 150
	:	BS 10 Table D / E / F
	:	PN 6 / PN 10 / PN 16 / PN 25
	:	DIN Standard / JIS Standard / IS Standard
Manufacuring Size Range	:	1" (DN25) to 12"(DN 300)
Pressure Rating of Valve	:	150#
	:	PN 10 / PN 16

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MOC (Bill of Material - BOM) for Double Window Sight Glass

Body & Cover for Sight Glass	:	ASTM A 216 GR. WCB (Cast Carbon Steel)
	:	ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316)
	:	ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L)
	:	ASTM A 351 GR. CN7M / ASTM A351 Gr. CF8C
	:	ASTM A351 Gr. CD4Mcu / ASTM A351 Gr. CK3MCuN
	:	ASTM A352 Gr. LCA / LCB / LCC
	:	ASTM A217 Gr. WC1 / WC6 / WC9 / C5 / C12
	:	ASTM A494 Gr. CW6MC / CW2M / CY40 / CU5MCuC
	:	Hastelloy C22 / Hastelloy C276
	:	NACE MR0175 / NACE MR
Glass	:	Toughened Glass
	:	Soda Lime Glass
	:	Borosilcate Glass as per DIN 7080 (Maxos / Klinger / Ilmadur)
Gasket	:	PTFE - Virgin
	:	25% Glass Filled Teflon
	:	CAF - Compressed Asbestos Fibre
	:	Graphited Asbestos
Bolts / Stud & Nuts	:	ASTM A 193 GR. B7 / A 194 GR. 2H
	:	S.S. 304/316/304L/316L

CONTACT US

Nivz Valves & Automation
D - 80, Suryam Industrial Park,
Nr. Torrent Power Sub Station,
Kathwada GIDC,
Odhav - Nikol S.P. Ring Road, Nikol,
Ahmedabad - 382350, Gujarat,
India.

Phone	:	+91 - 85119 53131 (Sales)
	:	+91 - 85119 53232 (Commercial)
	:	+91 - 94270 68323 (Technical)
	:	+ 91 - 79 - 29092401 (Admin)
E-mail	:	sales@nivzvalves.com (Sales)
	:	info@nivzvalves.com (Admin)
Skype	:	nivzvalves
Web	:	www.nivzvalves.com