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Sight glass Product List and Ranking from 22 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

Sight glass Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

  1. サワダ製作所 Hyogo//Other manufacturing
  2. BBKテクノロジーズ ​計装部門 Tokyo//Testing, Analysis and Measurement
  3. 日本クリンゲージ 東京営業所 Tokyo//Industrial Machinery
  4. 4 MONOVATE(旧：日東金属工業) 八潮工場 Saitama//Industrial Machinery
  5. 4 三広アステック Tokyo//Industrial Machinery
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Sight glass Product ranking

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

  1. Direct-reading liquid level gauge (glass liquid level gauge) BBKテクノロジーズ ​計装部門
  2. Round Glass Tube Water Level Gauge (Tubular Type) KGV-N Model サワダ製作所
  3. LED light-equipped sight glass with adjustable irradiation angle [NMB-LA] MONOVATE(旧：日東金属工業) 八潮工場
  4. 4 Reflective Liquid Level Gauge Model UZ サワダ製作所
  5. 4 Sanitary rule site glass [Site Cap (R)] ナガセ

Sight glass Product List

46～60 item / All 64 items

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Sanitary application site glass, site glass window

Sanitary application site glass, site glass window

Compatible with both CIP and SIP processes. Compact design. Hygienic design. Complies with extensive applications of ASME BPE.

The inline sight glass provided by Steriflow complies with the extensive applications of ASME BPE and is particularly suitable for high-purity piping systems in the pharmaceutical and biopharmaceutical industries. The structure features a transparent window design that offers a wide field of view and does not require backlighting. The inner diameter of the glass tube and connection matches the pipe diameter, ensuring no fluid residue occurs even when installed horizontally. Additionally, the sight glass window is suitable for various applications, especially for high-purity containers and piping systems in the pharmaceutical and biopharmaceutical industries. The large-diameter borosilicate window guarantees an appropriate field of view for the process. The SGW series combines borosilicate glass with stainless steel Tri-clamp™ rings using advanced technical methods. The two components form a continuous single unit with sufficient strength, free of gaps or cracks, and there are no joining materials between the glass and the ring. For more details, please contact us or download the catalog!

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Sight glass, flange type

Sight glass, flange type

Functional beauty and economy in "form". [Sight Glass Flanged Type]

A sight glass is a product used to check the presence of fluid in a pipeline, the mixing state of the fluid, or to visually confirm flow rate changes using flappers or balls. We introduce the flange-type sight glass. 【Features】 ○ Extensive lineup ○ Available with protective cover 【Standard Specifications】 ○ Connection: Flange type JIS 10k RF ○ Maximum operating pressure: 1.0 MPa ○ Maximum operating temperature: 150℃ (* Flange-type sight glass with ball: 85℃) ○ Gasket: T#9007-G20 ↓↓↓ For more details, please contact us. ↓↓↓

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Site glass lantern type

Site glass lantern type

Functional beauty and economy in "form". [Site Glass Lantern Type]

A sight glass is a product used to check the presence of fluid in a pipeline, the mixing state of the fluid, or to visually confirm changes in flow using devices like flappers or balls. We would like to introduce the lantern-type sight glass. 【Features】 ○ Extensive lineup ○ Protective cover available (only for lantern-type sight glass with flange) 【Standard Specifications】 ○ Connection: Flange type JIS 10k RF ○ Maximum operating pressure: Size 15-100A: 0.5MPa (lantern-type sight glass with flange) Size 125×150A: 0.3MPa (lantern-type sight glass with flange) 0.5MPa (lantern-type sight glass with wafer) ○ Maximum operating temperature: Room temperature ○ Gasket: FPM (Viton rubber) ↓↓↓ For more details, please contact us. ↓↓↓

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Sight glass made of steel plate

Sight glass made of steel plate

Functional beauty and economy in "form". [Site glass made of steel plate]

A sight glass is a product used to check the presence of fluid and the mixing state of fluid in pipelines, as well as to visually confirm flow rate changes with flappers or balls. We introduce steel plate sight glasses. 【Features】 ○ Extensive lineup ○ Custom production with protective covers available 【Standard Specifications】 ○ Connection: Flange type JIS 10k RF ○ Maximum operating pressure: Size 15-150: 1.0 MPa Size 200-150: 0.5 MPa ○ Maximum operating temperature: 150℃ ○ Gasket: T#9007-G20 ↓↓↓ For more details, please contact us. ↓↓↓

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Sunny Techno Sight Glass GL-70

Sunny Techno Sight Glass GL-70

Confident / Uniquely different / Gentle products

We will create products that are useful to society, with the development concept of confident, uniquely different, and gentle products.

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Sight glass "Type C (standard type, high pressure type) - Type L (lantern)"

Sight glass "Type C (standard type, high pressure type) - Type L (lantern)"

A sight glass is a liquid level gauge used to check the flow inside pipes.

A sight glass is a liquid level gauge used to check the flow inside pipes. There are lantern-shaped types that are easy to check from all sides, and cross-shaped types used in stringent operating conditions. 【Product Lineup】 ○ C/Cross (Standard Type) ○ CB/Cross (High Pressure Type) ○ L/Lantern For more details, please contact us or download the catalog.

  • Other measurement, recording and measuring instruments
  • Liquid level control/level switch

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Flanged sight glass 2055

Flanged sight glass 2055

In terms of price and quality, of course, we are particularly satisfied with the delivery time of Taiwanese valves.

The Taiwan-made sight glass is a device installed in the middle of a piping system that allows for visual inspection of the flow conditions of fluids inside pipes and tanks through a glass window from the outside of the piping.

  • Company：YTK
  • Price：Other
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Wiper-equipped sight glass 'FC-FO-Nf'

Wiper-equipped sight glass 'FC-FO-Nf'

The definitive version of the sight glass with a wiper! Equipped with an optional protector to adapt to harsh working environments.

The "FC-FO-Nf" is a product that is focused on having a sight glass that is clearly visible with wipers. In addition to powerful wipers on both sides, it is lightweight and durable. With the optional protector, it can adapt to harsh working environments. 【Features】 ■ Sight glass that is clearly visible with wipers ■ Powerful wipers on both sides ■ Lightweight and durable ■ Optional protector for adaptation to harsh working environments *For more details, please refer to the PDF document or feel free to contact us.

  • Liquid level control/level switch
  • Other process controls

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Wiper-equipped sight glass 'SU4W-SBM'

Wiper-equipped sight glass 'SU4W-SBM'

With SUS+ super cute wipes, there's no enemy! If you can't see the sight glass, it doesn't mean anything.

The "SU4W-SBM" features a body equipped with a flapper surrounded by a sight glass (cylindrical glass). When fluid flows, one end of the flapper is pushed, causing it to tilt. The greater the flow rate, the larger the tilt, making it a flapper-type sight glass. It has a built-in wiper brush. By simply gripping and rotating the sight glass during use, you can remove water stains and dirt from the inner surface of the sight glass, allowing for a clear view of the fluid. It has reference scale lines, making flow monitoring easy. 【Features】 ■ Guarantees visibility at all times with simple wiper operation ■ Stainless steel body achieves improved performance and low cost ■ Removes dirt just by gripping and rotating the sight glass during use ■ Compact size requires less installation space ■ Simple structure, robust, compact, and lightweight *For more details, please refer to the PDF document or feel free to contact us.

  • Liquid level control/level switch
  • Flow Meter
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Type 101 Cross Sight Glass (Without Nozzle)

Type 101 Cross Sight Glass (Without Nozzle)

You can see the flow very clearly! (There is also a ball float type)

The "Model 101 Cross Type Sight Glass (Without Nozzle)" features circular transparent glass plates on both the front and back sides, positioned perpendicular to the flow of liquid, allowing for monitoring of the liquid flow state through a circular viewing window. The circular glass plates are sealed with gaskets between the main body and the cover flange. Additionally, while the standard specification for the glass is tempered glass, custom options are available including Pyrex glass, transparent PVC, and transparent acrylic. 【Specifications】 ■ Connection & Size - PVC/PP Flanged: 15–200A Threaded: 15–50A ■ Gaskets - Custom options available including FKM and PTFE *For more details, please download the PDF or feel free to contact us.

  • Other work tools
  • Other measurement, recording and measuring instruments

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Yoshitake sight glass

Yoshitake sight glass

Can be used for both horizontal and vertical piping.

This is an introduction to the "Yoshitake Sight Glass" handled by our company. 【Features】 The flow rate changes can be easily checked with the flap and indicator board. It can be applied to both horizontal and vertical piping. For steam drainage, it is equipped with a mica plate. 【Model Numbers】 SF-1S15 SF-1S20 SF-1S25 SF-1S32 SF-1S40 SF-1S50 *Currently available for sale on "Plant Navi," a wholesale and procurement site exclusively for business operators dealing with plant piping materials and residential equipment, operated by Hasegawa Kizai Co., Ltd.

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Yoshitake sight glass

Yoshitake sight glass

Applicable to both horizontal and vertical piping.

This is an introduction to the "Yoshitake Sight Glass" handled by our company. 【Features】 Flow changes can be easily confirmed with the flap and indicator board. It has an extremely small pressure loss and has little effect on the fluid's pressure. It can be applied to both horizontal and vertical piping. 【Product Numbers】 150F-13S15 150F-13S20 150F-13S25 150F-13S32 150F-13S40 150F-13S50 *Currently available for sale on "Plant Navi," a wholesale and procurement site exclusively for businesses dealing with plant piping materials and residential equipment operated by Hasegawa Kizai Co., Ltd.

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T-L-B site glass screw-in

T-L-B site glass screw-in

Ensure a reliable check of the flow of fluids such as water, warm water, air, and steam!

This is an introduction to the "TLV Sight Glass Screw-In" that we handle. 【Features】 This product allows for reliable checking of the flow of fluids such as water, hot water, air, and steam through the oscillation of the ball. 【Product Numbers】 TLV T5N15 TLV T5N20 TLV T5N25 *Available for sale on "Plant Navi," a wholesale and purchasing site exclusively for businesses dealing in plant piping materials and residential equipment operated by Hasegawa Kizai Co., Ltd.

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Direct-reading liquid level gauge (glass liquid level gauge)

Direct-reading liquid level gauge (glass liquid level gauge)

With technology cultivated from the long-standing experience and achievements of Japan's first level gauge manufacturer, we support safe liquid level monitoring by preventing leakage and turbidity.

Through the special glass window, the liquid level is directly observed and confirmed. We accommodate all industrial fields from low temperature and low pressure to high temperature and high pressure. Tubular, reflective, and sight glass level gauges are suitable for on-site liquid level monitoring, while two-color level gauges can also be used for remote monitoring with a camera. High-quality mica prevents corrosion. Compatible with high-pressure gas certified products.

  • Other measurement, recording and measuring instruments

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Sight glass (sight flow meter)

Sight glass (sight flow meter)

A sight glass for piping that incorporates special technology developed in the manufacturing of liquid level gauges. It is suitable for critical piping such as corrosive fluids, chemicals, and high-temperature high-pressure piping.

You can monitor the flow of fluids. From basic options such as flow type, ball type, flapper type, and paddle wheel type, to lantern-shaped devices used in chemical and food-related applications, as well as various other uses including double-tube structures and coating applications. We also have numerous overseas delivery achievements.

  • Flow Meter

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