Flow indicator / sight glass
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Quick overview
- Type: Process Valve
- Size range: 1/2"~10" (DN15~DN250)
- Connection: Butt-weld, threaded (NPT) or flanged (ANSI B16.5 / DIN 2543)
- Pressure rating: Class 150 / 300; PN16–PN25
- Working temperature: 150°C (soda-lime glass) / 300°C (borosilicate glass)
- Material: WCB / stainless steel; cast iron
- Genuine productsSourced from the manufacturer or authorised channels
- Delivery across BangladeshDhaka, Chattogram and all industrial zones
- After-sales supportInstallation guidance and warranty handling
- Reply within 24 hoursCall +880 1713 552466 or email hello@argonmark.com
Specifications
| General | |
|---|---|
| Part no. | BD-1234 |
| Category | Valves & Fittings |
| Group | Valves & Fittings |
| Brand | Argonmark |
| Technical | |
| Type | Process Valve |
| Size range | 1/2"~10" (DN15~DN250) |
| Connection | Butt-weld, threaded (NPT) or flanged (ANSI B16.5 / DIN 2543) |
| Pressure rating | Class 150 / 300; PN16–PN25 |
| Working temperature | 150°C (soda-lime glass) / 300°C (borosilicate glass) |
| Material | WCB / stainless steel; cast iron |
| Application | Water, Gas, Oil, Air, Steam |
Datasheet
Design standard
| Design | ANSI B16.34 / API 602 |
|---|---|
| Flange dimension | ANSI B16.5 / DIN 2543 |
| Face to face | manufacturer's standard |
| Inspection & testing | DIN 3230 / API 598 |
Technical features
| Flow indicator for visual monitoring in pipelines and systems; special glasses rated 150°C, borosilicate glass up to 300°C | |
| Working temperature | 150°C ~ 425°C |
|---|---|
| Working pressure | Class 150 / 300 |
| Working pressure | PN16–PN25 |
| Connection type | butt-weld / threaded / flanged |
| Body material | cast iron, stainless steel |
| For hot/cold water, pressurised steam, LPG/LNG, fuel oil and the ceramic industry | |
| Tempered soda-lime glass 150°C; optional borosilicate glass 300°C | |
| Protects equipment in pipelines; improves efficiency and leak tightness | |
| Heavy-duty, proven, maintenance-free construction | |
| Horizontal or vertical installation; flange connection to DIN PN16/40 | |
| Standard drip ledge shows even minute flows | |
| Large observation opening | |
Performance specification
| Nominal pressure | 150 Lb |
|---|---|
| Strength test pressure | 1.6 MPa |
| Sealing test pressure | Not specified |
| Air test pressure | 0.8 MPa |
| Max. design temperature | 300°C |
| Suitable medium | Water, steam, oil etc. |
Material list
| No. | Part | Material |
|---|---|---|
| 1 | Body | WCB / stainless steel |
| 2 | Cap | WCB / stainless steel |
| 3 | Gasket | PTFE / graphite |
| 4 | Glass | Borosilicate / Sralinite |
Dimensions, Class 150 flanged and screwed (mm)
| DN | L | D2 | D1 | D | b | f | z-Ød | L (NPT) | H (NPT) |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 120 | 35 | 60.5 | 89 | 10 | 1.6 | 4-Ø16 | 100 | 70 |
| 20 | 120 | 43 | 70 | 98 | 11 | 1.6 | 4-Ø16 | 100 | 70 |
| 25 | 130 | 51 | 79.5 | 108 | 11.6 | 1.6 | 4-Ø16 | 100 | 70 |
| 32 | 155 | 63.5 | 89 | 118 | 13.2 | 1.6 | 4-Ø16 | 120 | 80 |
| 40 | 160 | 73 | 98.5 | 127 | 14.7 | 1.6 | 4-Ø16 | 120 | 80 |
| 50 | 180 | 92 | 120.5 | 152 | 16.3 | 1.6 | 4-Ø19 | 150 | 100 |
Flanged: L = face-to-face · D / D1 / D2 = flange, bolt-circle and raised-face diameters · b = flange thickness · f = raised-face height · z-Ød = bolt holes. Screwed (NPT): L = length · H = height.
Notes
| The supplier sheet includes a pressure–temperature rating chart. Chart available on request. |
Photo: jasonwoodhead23, CC BY 2.0, via Wikimedia Commons — illustrative photo of the product type, edited by Argonmark. All photo credits
Description
Flow indicator / sight glass supplied by Argonmark Ltd for industrial plants, contractors and workshops across Bangladesh. Category: Valves & Fittings. Available brands include Argonmark.
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