Visual control · PFA-lined sight glass
PFA-Lined Sight Glass Videron9
Double window · flanged · DN 15 – 250 / NPS ½" – 10" · PN 16 / Class 150 · for corrosive media
- Sizes
- DN 15 – 250 · NPS ½" – 10"
- Pressure
- PN 16 / Class 150 · up to 16 bar
- Temperature
- −10 °C … +150 °C
- Directive
- Designed to PED 2014/68/EU
Sight glass with PFA-lined body and two borosilicate glass windows — for checking flow, colour and level in lined lines: loading and transfer lines, column and reactor outlets, sampling points. One page for both norms: choose the size (EN or ASME), lining and glass protection, and send the configuration as a request for quotation.
Features
PFA-lined body
Virgin PFA lining, transfer-moulded and anchored in the body.
Double window
Two borosilicate glass windows to DIN 7080 give an unobstructed view of the medium.
Vertical or horizontal
Installation in vertical and horizontal lines.
Suitable for vacuum service
PFA lining anchored in dovetail grooves in the body; limits per P-T diagram or on request.
Pressure-bearing metal body
Takes the system pressure, up to 16 bar.
FEP foil liner option
A foil liner keeps the glass out of contact with the medium.
PFA/AS lining option
Antistatic version for media where electrostatic charge must be led off.
Tested and documented
Pressure test to DIN EN 12266-1, with EN 10204 3.1 material certificates.
Which version for which duty
| Duty | Choose |
|---|---|
| Checking flow, colour and level in lined lines | Videron9 with PFA lining |
| Loading and transfer lines | Videron9, flanged EN 1092-1 PN 16 or ASME B16.5 Class 150 |
| Column and reactor outlets, sampling points | Videron9 with PFA lining |
| Hydrofluoric acid and other media that attack glass | Glass protection: FEP foil liner |
| Media where electrostatic charge must be led off | PFA/AS (antistatic) lining |
| Clean rooms, pharma, semiconductor | Videron9 Clean Room — electropolished 1.4408 (CF8M) body |
Configure and request a quote
Your configuration
Reference: VID9-DN015-PFA-STD
Technical data
| Type | Sight glass with PFA-lined metal body and double window; vertical or horizontal installation |
|---|---|
| Sizes | DN 15 – 250 · NPS ½" – 10" |
| Pressure rating | PN 16 / Class 150 — up to 16 bar, see P-T diagram |
| Temperature | −10 °C up to +150 °C — see P-T diagram |
| Flanges | EN 1092-1 (PN 16) · ASME B16.5 (Class 150, RF) |
| Face-to-face | EN 558-1 Series 1 (PN) |
| Body | 1.0619 (A216 WCB), 1.4308 or 1.4408 (CF8M) |
| Lining | PFA (virgin PFA), PFA/AS (antistatic) — PVDF, PP, UHMW-PE also available |
| Glass | Borosilicate glass (DIN 7080), double window |
| Glass protection | Standard (glass in contact with the medium) or FEP foil liner (glass not wetted) |
| Vacuum | PFA lining anchored in dovetail grooves in the body — suitable for vacuum service; limits per P-T diagram or on request. |
| Options | FEP foil liner between glass and medium; coatings |
| Testing | Every valve pressure-tested in Germany before shipment. Pressure test to DIN EN 12266-1; EN 10204 3.1 material certificates |
| Directive | Designed and manufactured to PED 2014/68/EU |
| Origin and quality | Made in Germany · country of origin Germany · ISO 9001:2015 certified manufacturing |
Materials
| Pos. | Part | Material |
|---|---|---|
| 1 | Body | 1.0619 (A216 WCB), 1.4308, 1.4408 (CF-8M) |
| 2 | Cover Plate | 1.0619 (A216 WCB), 1.4308, 1.4408 (CF-8M) |
| 3 | Glass | Borosilicate Glass (DIN 7080) |
| 4 | Support | PTFE/PTFE |
| 5 | Bolts and Nuts | Stainless Steel A2, A4, a.A./o. o. req |
Lining PFA or the selected lining material. Glass: borosilicate (DIN 7080); with the FEP foil liner the glass is not in contact with the medium. Support: PTFE. Bolts and nuts: stainless steel A2, A4.
Pressure–temperature rating
Sight Glass Pressure Temperature Diagram Pressure up to 16 bar and temperature −10 °C up to +150 °C — see the P-T diagram (PDF) for the permissible combinations.
Dimensions
EN version — EN 1092-1 PN 16, EN 558 Series 1 · mm
| Size | L | D | k | d | n × ØB | Øa |
|---|---|---|---|---|---|---|
| DN 15 | 130 | 95 | 65 | 45 | 4 x 14 (M12) | 32 |
| DN 20 | 150 | 105 | 75 | 58 | 4 x 14 (M12) | 32 |
| DN 25 | 160 | 115 | 85 | 68 | 4 x 14 (M12) | 48 |
| DN 40 | 200 | 150 | 110 | 88 | 4 x 18 (M16) | 65 |
| DN 50 | 230 | 165 | 125 | 102 | 4 x 18 (M16) | 80 |
| DN 80 | 310 | 200 | 160 | 138 | 8 x 18 (M16) | 100 |
| DN 100 | 350 | 220 | 180 | 158 | 8 x 18 (M16) | 125 |
| DN 150 | 480 | 285 | 240 | 212 | 8 x 22 (M20) | 142 |
| DN 200 | 600 | 340 | 295 | 268 | 12 x 22 (M20) | 190 |
ASME version — ASME B16.5 Class 150 RF, ASME B16.10 · mm
| Size | L | D | k | d | n × ØB | Øa |
|---|---|---|---|---|---|---|
| NPS ½" | 150 | 88.9 | 60.3 | 34.9 | 4 x 15.9 | 32 |
| NPS ¾" | 130 | 98.4 | 69.8 | 42.9 | 4 x 15.9 | 32 |
| NPS 1" | 160 | 108 | 79.4 | 50.8 | 4 x 15.9 | 48 |
| NPS 1½" | 200 | 127 | 98.4 | 73 | 4 x 15.9 | 65 |
| NPS 2" | 230 | 152.4 | 121 | 92.1 | 4 x 19 | 80 |
| NPS 3" | 310 | 190.5 | 152.4 | 127 | 4 x 19 | 100 |
| NPS 4" | 350 | 228.6 | 190 | 157.2 | 8 x 19 | 125 |
| NPS 6" | 480 | 279 | 241 | 216 | 8 x 22.2 | 142 |
| NPS 8" | 457 | 342.9 | 298.5 | 269.9 | 8 x 22.2 | 190 |
a: sight-glass dimension, see the dimensional drawing. DN 250 / NPS 10 are not listed in the table: dimensions on request. Dimensions nominal — confirm against the certified drawing before piping design. The row of your selected size is highlighted; sizes without a row: dimensions on request.
Documents
Used in
Chemical processingFine chemicals & APIChemical storage & tank farmsSulfuric acid terminalsMining & hydrometallurgyWater treatmentPulp & paper
FAQ
Questions we are often asked
Which glass protection should I choose?
Standard: the glass is in contact with the medium. FEP foil liner: a fluoropolymer foil liner keeps the glass out of contact with the medium — choose it for hydrofluoric acid (HF) and other media that attack glass. Tell us your medium and we will confirm the choice.
PFA or PFA/AS lining?
PFA (virgin PFA) is the standard lining. PFA/AS is the antistatic version for media where electrostatic charge must be led off.
Which size and norm?
One page for both norms. DN 15 – 250 follows EN 1092-1 PN 16; NPS ½" – 10" follows ASME B16.5 Class 150 RF. The dimension table shows the listed sizes; choose the size, lining and glass protection and send the configuration as a request for quotation.
Is the sight glass suitable for vacuum?
PFA lining anchored in dovetail grooves in the body — suitable for vacuum service; limits per P-T diagram or on request.
Which documents come with each sight glass?
Sight glasses are pressure tested to DIN EN 12266-1 and supplied with EN 10204 3.1 material certificates. Designed and manufactured to PED 2014/68/EU.
PFA or PTFE lining — what is the difference?
Both are fully fluorinated plastics with almost universal chemical resistance. PTFE cannot be melted, so PTFE liners are pressed and sintered. PFA can be melted, so we transfer-mould it into the valve body: the lining is dense, anchored in the body and follows complex shapes. If your specification says "PTFE-lined", a PFA-lined valve meets the same chemical duty — ask us for a comparison for your medium.
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