We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Sight glass.
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Sight glass Product List and Ranking from 22 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Dec 24, 2025~Jan 20, 2026
This ranking is based on the number of page views on our site.

Sight glass Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Dec 24, 2025~Jan 20, 2026
This ranking is based on the number of page views on our site.

  1. 三広アステック Tokyo//Industrial Machinery
  2. 日本クリンゲージ 東京営業所 Tokyo//Industrial Machinery
  3. サワダ製作所 Hyogo//Other manufacturing
  4. 4 MONOVATE(旧:日東金属工業) 八潮工場 Saitama//Industrial Machinery
  5. 5 大洋バルブ製作所 Tokyo//Building materials, supplies and fixtures

Sight glass Product ranking

Last Updated: Aggregation Period:Dec 24, 2025~Jan 20, 2026
This ranking is based on the number of page views on our site.

  1. Reflective liquid level gauge (water level gauge) 日本クリンゲージ 東京営業所
  2. Integrated sight glass (peephole) SGP 三広アステック
  3. Wiper-equipped sight glass (peephole) SG-W 三広アステック
  4. LED light-equipped sight glass with adjustable irradiation angle [NMB-LA] MONOVATE(旧:日東金属工業) 八潮工場
  5. 4 Type 101 Cross Sight Glass (Without Nozzle) ヴイ・アイ・シー

Sight glass Product List

16~30 item / All 64 items

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Sight Glass SF-1S・SF-1F

FCD-made flap-type sight glass

A sight glass is used as a device to visually confirm the flow of fluid from outside the piping.

  • Piping Materials

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Sight Glass SL-1S・SL-1F

FCD-made transparent sight glass

The sight glass is used as a device to visually confirm the flow of fluid from outside the piping.

  • Piping Materials

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Sanitary rule site glass [Site Cap (R)]

Transparent resin one-piece peephole with a blind hole shape!

Nagase Corporation proposes the "Sight Glass Function Cap" as a new type of viewing window for use in sanitary piping. It can be directly replaced with conventional blind hatches since it has the same shape. You can see inside, so you can be assured of cleanliness during product changeovers. Additionally, there is no worry about breakage like with glass. 【Features】 ■ Visible interior for peace of mind ■ Simple structure for convenience *For more details, please refer to the catalog or feel free to contact us.

  • Piping parts
  • Food Factory Equipment

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sight glass

Direct confirmation through the glass window!

A sight glass is a device that allows for direct observation of the internal conditions of pipes, tanks, etc., through a glass window. It can be adapted to various piping and tanks through connection methods such as flange connection, threaded connection, butt welding, and wall welding. We design and manufacture products that can be used under special conditions such as high temperature and high pressure, according to customer requirements. Additionally, we offer various options such as mica plates that enable use with liquids that have corrosive properties, Teflon sheets that prevent water stains from adhering to the glass surface, and protective plates that shield the glass from impact.

  • lens

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Screw-in sight glass

Functional beauty and economy in "form". [Site glass, screw-in type]

A sight glass is a product used to check the presence of fluid and the mixing state of fluid in a pipeline, as well as to visually confirm flow changes with devices such as flappers and balls. We introduce the screw-in type sight glass. 【Features】 ○ Extensive lineup 【Standard Specifications】 ○ Connection: Screw-in RC ○ Maximum operating pressure: 1.0 MPa ○ Maximum operating temperature: 150°C (Note: Screw-in type sight glass with ball: 85°C) ○ Gasket: T#9007-G20 ↓↓↓ For more details, please contact us. ↓↓↓

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Sunny Tech Site Glass GL-100

Confident / Uniquely different / Gentle products

With the development concept of creating products that instill confidence, have a unique touch, and are gentle, we will continue to create products that benefit society.

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sight glass

Ideal for vacuum piping in pharmaceutical and food manufacturing equipment!

This sight glass is designed for vacuum piping, making it easy to monitor the inside of the vacuum pipe. It prevents short-throughs of bubbles and liquids. The connection diameter ranges from ISO15A to IDF1.5S. The maximum operating temperature is room temperature +120°C. It is used in pharmaceutical, cosmetic, chemical manufacturing equipment, and food manufacturing equipment. 【Features】 ■ Allows monitoring inside the vacuum pipe ■ Prevents short-throughs of liquids ■ Maximum operating pressure: vacuum to atmospheric pressure ■ Finish: buff polished (internal and external #400) *For more details, please contact us or download the catalog.

  • Piping parts

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Fuse view sight glass

A patented product made of glass and a metal ring that won't break even if dropped or tightly clamped.

The fuse view sight glass is a very sturdy product that integrates glass and a metal ring. It won't break even if dropped or subjected to one-sided pressure. Additionally, it can be used in high temperatures, low temperatures, high pressure, and vacuum conditions, and it excels in corrosion resistance and wear resistance. It is FM (Factory Mutual System) approved, and material certification in accordance with ASME codes and TUV standards can be issued if necessary.

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Sight Glass "SG-I/SG-W"

Introducing the inline type that allows you to easily see the state of the fluid, and the sight glass type that is suitable as a viewing window for tanks and other containers!

We handle the sight glasses 'SG-I/SG-W'. The inline type (SG-I) allows for a quick view of the fluid's state, while the window type (SG-W) is suitable as a viewing window for tanks and similar applications. The inline type can optionally be equipped with a wire mesh or acrylic for glass shatter prevention. 【Features】 ■ Main material: Stainless steel 304/316L ■ Glass material - Inline type: Pyrex glass / Acrylic / Others - Window type: Tempax glass / Tempered glass / Acrylic / Others ■ Gasket material - Inline type: EPDM / Silicone / Others - Window type: Silicone / EPDM / Others ■ Connection: Ferrule / Male thread / Nut / Others *For more details, please refer to the PDF document or feel free to contact us.

  • stainless
  • Other machine elements
  • Piping Materials

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Comprehensive Catalog: Strainers / Sight Glasses

A variety of strainers and sight glasses made of stainless steel and cast iron are available!

This catalog is a comprehensive catalog from Washino Kiki Co., Ltd., a specialized manufacturer of strainers and sight glasses. It features various products, including the manual cleaning Y-shaped strainer "YF-B," which allows for cleaning without removing the cover and contributes to reducing maintenance costs, as well as Teflon strainers and sight glasses from the "GT series" and "YT series," which are active in the petrochemical and electronics fields. [Contents] ■ Strainers ■ Sight Glasses *For more details, please download the PDF or feel free to contact us.

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Screw-in type sight glass 2056

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

The Taiwan-made sight glass is a device installed in the middle of a piping route, allowing for visual inspection from the outside through a glass window to check the condition of the fluid flowing inside the pipes and tanks.

  • Company:YTK
  • Price:Other
  • valve

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Wiper-equipped sight glass 'SU4W-SSGF/FSGF'

Wiper with flapper operation confirmation mechanism built-in! Lightweight and compact standard sight glass.

The "SU4W-SSGF/FSGF" is a sight glass equipped with a wiper that has a flapper operation confirmation mechanism built in. When the spindle is turned with a hexagon wrench, the wiper operates, and the brush wipes the inner surface of the glass while simultaneously moving the flapper. The flapper attached to the brush holder is not affected by its orientation, so there are no restrictions on the installation position. 【Features】 ■ Lightweight and compact standard type sight glass ■ Wiper with flapper operation confirmation mechanism built in ■ Options available for various fluids *For more details, please refer to the PDF document or feel free to contact us.

  • Liquid level control/level switch
  • Flow Meter
  • others

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Yoshitake sight glass

Can be used for both horizontal and vertical piping.

This is an introduction to the "Yoshitake Sight Glass" that we handle. 【Features】 - Allows observation of the mixing of two liquids and their color variations - Can confirm intermittently flowing liquids - Usable in both horizontal and vertical piping 【Product Numbers】 SL-1S15 SL-1S20 SL-1S25 SL-1S32 SL-1S40 SL-1S50 *Currently available for sale on "Plant Navi," a wholesale and procurement site exclusively for businesses dealing in plant piping materials and residential equipment operated by Hasegawa Kizai Co., Ltd.

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Yoshitake sight glass

The state of the flow can be confirmed by the movement of the ball.

This is an introduction to the "Yoshitake Sight Glass" handled by our company. 【Features】 You can check the flow condition by the movement of the ball. The rotation of the ball makes it less likely for water stains to adhere to the glass surface. It can be installed on either horizontal or vertical (flow direction: bottom to top) piping. (For horizontal piping, please install the glass surface horizontally.) 【Product Numbers】 SB-1S15 SB-1S20 SB-1S25 SB-1S32 SB-1S40 SB-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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