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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

축소 가능한 콘텐츠

Dimensional Measurements

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

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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