GFT 9 PFA Transfer Molding Meets Precision Engineering

PFA Lined Sight Glass

Videron9
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.

Core PFA Features

Corrosion Resistance

Delivers superior chemical resistance against diverse corrosive agents, extending equipment lifespan.

Low Friction / Non-Stick

Minimizes friction and buildup for smooth flow and reduced wear.

Electrical Insulation

Provides robust insulation for safe, reliable performance in critical applications.

Thermal Stability

Maintains consistent performance across extreme temperatures, reducing maintenance needs.

Key Specifications

Design Norm: DIN/ISO • Size: DN 25-150 | NPS ½"-10” • Face-to-Face Dimensions: PN (EN 558-1), Series 1 | ANSI-B-16.5 • Flange Dimensions: DIN 2501 (PN 16) • Lining: PFA, PFA/AS, PVDF, PP, UHMW-PE • Body: 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 • Certificates: EU Pressure Equipment Directive 2014/68/EU

Product overview

Partner with GFT9

Global Reach

Based in Germany, delivering worldwide through our global network.

Manufacturer

Decades of experience in PFA lining & manufacturing

Dependable

Reliable Lead Time, routinely between 1-6 weeks.

Digital Friendly

Quote, buy & manage documentation in one place.
GFT 9 PFA Transfer Molding Meets Precision Engineering

PFA ライニング サイトグラス | DN 25-150 | 安全なモニタリング Features

Vertical installation & Horizontal Installation


for uncomplicated installation in all environments

Double Window

the two Borosilicate glass windows according to DIN 7080 allow a unobstructed monitoring of the media
Feature Image 5
Feature Image 6

Our PFA ライニング サイトグラス | DN 25-150 | 安全なモニタリング Certificates

Safety Integrity Level

Safety Integrity Level

Learn More
Pressure Equipment Directive

Pressure Equipment Directive

Learn More
GFT 9 PFA Transfer Molding Meets Precision Engineering

Videron9 Materials

Materials Drawing
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
GFT 9 PFA Transfer Molding Meets Precision Engineering

Videron9 Measurements

Measurement Drawing
Size L ød øk øD Bolting øa Weight
DN 15 130 mm 45 mm 65 mm 95 mm 4 x 14 (M12) 32 mm 3 kg
DN 20 150 mm 58 mm 75 mm 105 mm 4 x 14 (M12) 32 mm 4 kg
DN 25 160 mm 68 mm 85 mm 115 mm 4 x 14 (M12) 48 mm 5.5 kg
DN 40 200 mm 88 mm 110 mm 150 mm 4 x 18 (M16) 65 mm 9.6 kg
DN 50 230 mm 102 mm 125 mm 165 mm 4 x 18 (M16) 80 mm 12.5 kg
DN 80 310 mm 138 mm 160 mm 200 mm 8 x 18 (M16) 100 mm 25.5 kg
DN 100 350 mm 158 mm 180 mm 220 mm 8 x 18 (M16) 125 mm 31.5 kg
DN 150 480 mm 212 mm 240 mm 285 mm 8 x 22 (M20) 142 mm 68 kg
DN 200 600 mm 268 mm 295 mm 340 mm 12 x 22 (M20) 190 mm 88 kg
DN 250 533 mm 220 mm 115 kg
Size L ød øk øD Bolting øa Weight
NPS ½" 108 mm 34.9 mm 60.3 mm 88.9 mm 4 x 15.9 32 mm 3 kg
NPS ¾" 117 mm 42.9 mm 69.8 mm 98.4 mm 4 x 15.9 32 mm 4 kg
NPS 1" 127 mm 50.8 mm 79.4 mm 108 mm 4 x 15.9 48 mm 4.8 kg
NPS 1½" 165 mm 73 mm 98.4 mm 127 mm 4 x 15.9 65 mm 8.8 kg
NPS 2" 178 mm 92.1 mm 121 mm 152.4 mm 4 x 19 80 mm 11.5 kg
NPS 3" 203 mm 127 mm 152.4 mm 190.5 mm 4 x 19 100 mm 22 kg
NPS 4" 229 mm 157.2 mm 190 mm 228.6 mm 8 x 19 125 mm 28.8 g
NPS 6" 394 mm 216 mm 241 mm 279 mm 8 x 22.2 142 mm 62 kg
NPS 8" 457 mm 269.9 mm 330.2 mm 381 mm 12 x 25.4 190 mm 82 g
NPS_10" 533 mm 220 mm
GFT 9 PFA Transfer Molding Meets Precision Engineering

Pressure Temperature Diagram

Pressure-Temperature diagram
GFT 9 PFA Transfer Molding Meets Precision Engineering

Industry Use Cases

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

Chemical Industry

Facilitates the monitoring of highly corrosive substances, ensuring process integrity and safety.​

Pharmaceutical Industry

Enables observation of pure and ultra-pure media, maintaining stringent quality standards.

Water Treatment

Assists in monitoring the flow and condition of treatment chemicals, ensuring proper dosing and blending.

Food & Beverage Industry

Ensures hygienic observation of liquid products, complying with strict sanitary regulations.

Petrochemical Industry

Provides reliable monitoring of reactive and hazardous media in refining and processing operations.

Pulp & Paper Industry

Allows for the observation of bleaching agents and other chemicals, ensuring process efficiency and equipment protection.

Biotechnology

Enables visual inspection of fluid media and bioproducts, ensuring sterility and process control.

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