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Unparalleled Clarity and Corrosion Resistance for Critical Process Monitoring

The GFT9 Videron PFA/Teflon double window sight glass is the ultimate solution for operators requiring continuous, real-time observation of process media in highly corrosive and high-pressure environments. Designed for both vertical and horizontal installations, it offers unmatched durability and reliability with minimal maintenance.

Its virgin PFA lining provides superior chemical resistance against aggressive, reactive, and permeating substances, far outperforming stainless steel or standard plastic alternatives. Additionally, its vacuum-proof anchoring system, secured through mechanical clamping, ensures exceptional sealing integrity, preventing leakage and structural failure—even in extreme process conditions.

With a robust, pressure-bearing metal body and double borosilicate glass windows, the Videron guarantees safe, clear, and obstruction-free monitoring of liquid levels, flow, and fluid conditions. Trusted across industries from chemical processing to pharmaceuticals, food & beverage, and petrochemicals, it sets the standard for reliable and maintenance-free sight glass solutions in the most demanding applications.

About GFT9 – Your Trusted PFA Specialist

  • Custom Manufacturing Excellence:

    Our products undergo rigorous testing and comply with international quality standards, reinforcing our commitment to excellence and instilling confidence in our clients.

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  • Global Supply Network & Streamlined Ordering:

    Leveraging an extensive international network, we ensure reliable delivery and consistent product availability, while our user-friendly, integrated ordering system simplifies procurement for our clients.

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  • Dedicated After-Sales Support:

    Our expert team provides ongoing technical assistance and exceptional customer service, ensuring long-term satisfaction and the operational success of your installations.

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  • Quality Certifications & Adherence to Industry Standards:

    Our products undergo rigorous testing and comply with international quality standards, reinforcing our commitment to excellence and instilling confidence in our clients.

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Proven Performance

Industry Applications

The GFT9 Videron PFA-lined double window sight glass is an indispensable component across various industries requiring safe and continuous observation of liquid properties in challenging environments. Due to its robust construction and superior corrosion resistance make it an essential tool for operators who require dependable, real-time monitoring in demanding industrial application

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Sight Glass Summary

Parameter Value
Name Videron9
Design Norm DIN/ISO | ANSI
Size DN 25-150 | NPS ½-10”
Flange Dimensions DIN 2501 (PN 16) | ASME B16.10 (Class 150-RF LP)
Face-Face-Dimensions PN (EN 558-1), Series 1 | ANSI-B-16.5
Lining Options PFA, PFA/AS, PVDF, PP, UHMW-PE
Body Materials 1.0619 , 1.4308, 1.4408, Carbon Steel / A216WCB, CF8-M or CF-8, Carbon Steel
Pressure Range 16 bar
Temperature Range -10°C up to 150°C
Custom Options 5 mm lining, coatings
Certificates EU Pressure Equipment Directive 2014/68/EU

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Sight Glass Specifications

संक्षिप्त करने योग्य सामग्री

Dimensional Measurements

Size L ød øk øD Bolting øa Weight
DN 15 130 मि॰मी॰ 45 मि॰मी॰ 65 मि॰मी॰ 95 मि॰मी॰ 4 x 14 (M12) 32 मि॰मी॰ 3 कि॰ग्रा॰
DN 20 150 मि॰मी॰ 58 मि॰मी॰ 75 मि॰मी॰ 105 मि॰मी॰ 4 x 14 (M12) 32 मि॰मी॰ 4 कि॰ग्रा॰
DN 25 160 मि॰मी॰ 68 मि॰मी॰ 85 मि॰मी॰ 115 मि॰मी॰ 4 x 14 (M12) 48 मि॰मी॰ 5.5 कि॰ग्रा॰
DN 40 200 मि॰मी॰ 88 मि॰मी॰ 110 मि॰मी॰ 150 मि॰मी॰ 4 x 18 (M16) 65 मि॰मी॰ 9.6 कि॰ग्रा॰
DN 50 230 मि॰मी॰ 102 मि॰मी॰ 125 मि॰मी॰ 165 मि॰मी॰ 4 x 18 (M16) 80 मि॰मी॰ 12.5 कि॰ग्रा॰
DN 80 310 मि॰मी॰ 138 मि॰मी॰ 160 मि॰मी॰ 200 मि॰मी॰ 8 x 18 (M16) 100 मि॰मी॰ 25.5 कि॰ग्रा॰
DN 100 350 मि॰मी॰ 158 मि॰मी॰ 180 मि॰मी॰ 220 मि॰मी॰ 8 x 18 (M16) 125 मि॰मी॰ 31.5 कि॰ग्रा॰
DN 150 480 मि॰मी॰ 212 मि॰मी॰ 240 मि॰मी॰ 285 मि॰मी॰ 8 x 22 (M20) 142 मि॰मी॰ 68 कि॰ग्रा॰
DN 200 600 मि॰मी॰ 268 मि॰मी॰ 295 मि॰मी॰ 340 मि॰मी॰ 12 x 22 (M20) 190 मि॰मी॰ 88 कि॰ग्रा॰
DN 250 533 मि॰मी॰ 220 मि॰मी॰ 115 कि॰ग्रा॰
Size L ød øk øD Bolting øa Weight
NPS ¾" 117 मि॰मी॰ 42.9 मि॰मी॰ 69.8 मि॰मी॰ 98.4 मि॰मी॰ 4 x 15.9 32 मि॰मी॰ 4 कि॰ग्रा॰
NPS ½" 108 मि॰मी॰ 34.9 मि॰मी॰ 60.3 मि॰मी॰ 88.9 मि॰मी॰ 4 x 15.9 32 मि॰मी॰ 3 कि॰ग्रा॰
NPS 1" 127 मि॰मी॰ 50.8 मि॰मी॰ 79.4 मि॰मी॰ 108 मि॰मी॰ 4 x 15.9 48 मि॰मी॰ 4.8 कि॰ग्रा॰
NPS 1½" 165 मि॰मी॰ 73 मि॰मी॰ 98.4 मि॰मी॰ 127 मि॰मी॰ 4 x 15.9 65 मि॰मी॰ 8.8 कि॰ग्रा॰
NPS 2" 178 मि॰मी॰ 92.1 मि॰मी॰ 121 मि॰मी॰ 152.4 मि॰मी॰ 4 x 19 80 मि॰मी॰ 11.5 कि॰ग्रा॰
NPS 3" 203 मि॰मी॰ 127 मि॰मी॰ 152.4 मि॰मी॰ 190.5 मि॰मी॰ 4 x 19 100 मि॰मी॰ 22 कि॰ग्रा॰
NPS 4" 229 मि॰मी॰ 157.2 मि॰मी॰ 190 मि॰मी॰ 228.6 मि॰मी॰ 8 x 19 125 मि॰मी॰ 28.8 ग्रा॰
NPS 6" 394 मि॰मी॰ 216 मि॰मी॰ 241 मि॰मी॰ 279 मि॰मी॰ 8 x 22.2 142 मि॰मी॰ 62 कि॰ग्रा॰
NPS 8" 457 मि॰मी॰ 269.9 मि॰मी॰ 330.2 मि॰मी॰ 381 मि॰मी॰ 12 x 25.4 190 मि॰मी॰ 82 ग्रा॰
NPS_10" 533 मि॰मी॰ 220 मि॰मी॰

Materials Table & File

Pos. Item Material
Lining PFA, PFA/AS, FEP, PP, PVDF
1 Body 1.0619 (A216 WCB), 1.4408 (CF-8M), 1.4116 (SS), Carbon Steel
2 Cover Plate 1.0619 (A216 WCB), 1.4408 (CF-8M), 1.4116 (SS), Carbon Steel
3 Glass Borosilicate Glass (DIN 7080)
4 Support PTFE/PTFE
5 Bolts and Nuts Stainless Steel A2, A4, a.A./o. o. req

P‑T Diagram

Sight Glass Pressure Temperature Diagram

Collapsible row

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