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Sight Glass

A sight glass is a device installed partway down a pipe to enable an external visual check through a glass window of the approximate condition of fluids running inside the pipe or tank. Generally, this product is used to check the dryness of liquefied refrigerant gas. Other products are more elaborate, with some types that facilitate the checking of the fluid flow by oscillating a ball (float) or opening and closing a flapper. A lantern type that enables fluid flow checking from all 360° directions is also available. Various connection methods are used compatible with different pipes and tanks, including flange connection, wall welding, screw-in connection, butt welding and socket welding. Reinforced glass is sometimes used for the glass area depending on the application. However, since deterioration and abrasion of this glass cannot be avoided, it must be replaced approximately every year with a new part to prevent accidents caused by glass damage.

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Brand	ESCO (1) MIYAWAKI (2) WASHINOKIKI (9) YOSHITAKE (8)
CAD	2D 3D
Days to Ship	All 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less Others

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Stainless steel flapper type sight glasses GKF13F/GKF14F

WASHINOKIKI

The flapper (metal plate) is retained by spring and moves in response to the flow, allowing the flow of the fluid to be visually checked.

[Features]
· Glass wear prevention: If using in locations such as steam drains, embedding the mica sheet to the interior surfaces helps prevent glass exhaustion.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Steam	Flange	15A ～ 50A	Stainless	150	-

From: ₹ 48,887.31
Days to Ship: 11 Day(s) or more

11 Day(s) or more

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Sight Glasses SF-1F Series

YOSHITAKE

Fluctuations in the flow rate can be easily checked using the flapper and indicator plate. Can be used with both vertical and horizontal pipes.

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Oil / Others	Flange	15A ～ 40A	Cast Iron	150	-

From: ₹ 11,842.55
Days to Ship: 9 Day(s) or more

9 Day(s) or more

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Sight Glass, SF-1S Series

YOSHITAKE

Fluctuations in the flow rate can be easily checked using the flapper and indicator plate. Can be used with both vertical and horizontal pipes.

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Oil / Others	Rc	15A ～ 50A	Cast Iron	150	-

From: ₹ 6,660.56
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Stainless Steel Flapper-Type Sight Glass, GKF13S/GKF14S

WASHINOKIKI

The flapper (metal plate) is retained by spring and moves in response to the flow, allowing the flow of the fluid to be visually checked.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Steam	Rc	8A ～ 32A	Stainless	150	-

From: ₹ 20,450.67
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Stainless steel ball type sight glasses GKB13F/GKB14F

WASHINOKIKI

Incorporates several balls with different specific gravities. The flow of fluids can be checked visually using the floating balls.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Steam	Flange	65A	Stainless	85	-

From: ₹ 170,970.38
Days to Ship: 26 Day(s) or more

26 Day(s) or more

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Flapper Type Sight Glasses GFAF

WASHINOKIKI

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Steam	Flange	15A ～ 50A	Cast Iron	150	-

From: ₹ 20,410.45
Days to Ship: 11 Day(s) or more

11 Day(s) or more

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Gun metal sight glass GMBCS/GBMBCS

WASHINOKIKI

Available in everything from perspective types to ball types. Select the most appropriate type to match the intended application.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula / Ball Type	Water / Steam	Rc	8A ～ 50A	Copper	85 ～ 110	-

From: ₹ 8,822.02
Days to Ship: 9 Day(s) or more

9 Day(s) or more

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Sight Glasses 150F-13S Series

YOSHITAKE

[Features]
・ With the flap and indicator plate, you can easily check the change in flow rate
・ It can be mounted to both horizontal and vertical piping
・ The pressure loss due to the flow is as small as 0.01 MPa even when the maximum flow rate is indicated, and does not affect the fluid pressure
・ For steam condensate, It comes with mica plate
・ A wide selection of cast iron and stainless steel materials are available according to the application

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Oil / Others	Rc	15A ～ 50A	Stainless	150	-

From: ₹ 19,331.42
Days to Ship: 9 Day(s) or more

9 Day(s) or more

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Sight Glasses 150L-13S Series

YOSHITAKE

Enables the mixed state of two-part fluids and their color to be checked. Can be used with both vertical and horizontal pipes.

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula	Water / Oil / Others	Rc	50A	Stainless	150	-

From: ₹ 66,925.62
Days to Ship: 9 Day(s) or more

9 Day(s) or more

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Sight Glass, 400 Series

YOSHITAKE

The inside of the dome is self-cleaned by the rotating spinner. No cleaning required. Features a simple design that allows for easy disassembly/assembly.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Spinner Type	Water / Oil / Others	Rc	10A ～ 25A	Copper	100	-

From: ₹ 8,796.02
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Sight Glasses SB-1F Series

YOSHITAKE

Move the ball to check the flow state. The ball rotates and contacts the glass, helping prevent water scale/stain buildup on the glass surface.

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Oil / Others	Flange	15A ～ 50A	Cast Iron	85	-

From: ₹ 11,838.53
Days to Ship: 9 Day(s) or more

9 Day(s) or more

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Sight Glasses SB-1S Series

YOSHITAKE

Move the ball to check the flow state. The ball rotates and contacts the glass, helping prevent water scale/stain buildup on the glass surface.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Oil / Others	Rc	15A ～ 50A	Cast Iron	85	-

From: ₹ 6,660.56
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Sight Glasses SL-1S Series

YOSHITAKE

Enables the mixed state of two-part fluids and their color to be checked. Can be used with both vertical and horizontal pipes.

CAD ：: 2D

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula	Water / Oil / Others	Rc	15A ～ 50A	Cast Iron	150	-

From: ₹ 5,611.82
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Stainless Steel Ball Type Sight Glass,GKB13S/GKB14S

WASHINOKIKI

Incorporates several balls with different specific gravities. The flow of fluids can be checked visually using the floating balls.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Steam	Rc	8A ～ 50A	Stainless	85	-

From: ₹ 16,149.87
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Stainless steel transparent sight glasses GK13F/GK14F

WASHINOKIKI

The interior is hollow. Enables visual confirmation of the color and flow of fluids. Use for liquids. Substitutes for a level gauge.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula	Water / Steam	Flange	32A ～ 50A	Stainless	150	-

From: ₹ 97,629.18
Days to Ship: 11 Day(s) or more

11 Day(s) or more

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Stainless Steel Transparent Sight Glasses GK13S/GK14S

WASHINOKIKI

The interior is hollow. Enables visual confirmation of the color and flow of fluids. Use for liquids. Substitutes for a level gauge.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula	Water / Steam	Rc	8A ～ 25A	Stainless	150	-

From: ₹ 15,119.20
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Ball type sight glasses GKBF/GBAF

WASHINOKIKI

Incorporates several balls with different specific gravities. The flow of fluids can be checked visually using the floating balls.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Steam	Flange	65A	Cast Iron	85	-

From: ₹ 78,905.80
Days to Ship: 11 Day(s) or more

11 Day(s) or more

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Site checker TS1

MIYAWAKI

[Features]
・ As it is also used as a check valve, it prevents backflow
・ The body made of golden brass (brass forged) has excellent durability
・ Even if the amount of fluid is very small, it is possible to determine the flow state by slightly swinging the ball (valve)
・ The ball (valve) has a self-cleaning effect
・ Easy to clean and inspect the glass
・ Small size, lightweight and space saving
・ Since there is no glass on the top surface, it is a horizontal 4-way type, so there is no accumulation of dust, etc., on the glass and it is safe to drop tools, etc., by mistake

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Ball Type	Water / Steam	Rc	15A ～ 25A	Copper	-	N/A

From: ₹ 15,065.89
Days to Ship: 19 Day(s) or more

19 Day(s) or more

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Double-sided glass fluoroscopic sight glass (trap tester) T3 type

MIYAWAKI

[Features]
・ Useful for checking the flow state of various fluids
・ Since the flapper is installed, you can see the situation well even if you swing it
・ The body material is cast steel and has excellent durability
・ Easy maintenance
[Applications]
・ Attach it to the secondary side (outlet side) of the trap and use it through a glass window to observe, etc., the operation of the trap

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Flapper Type	Water / Oil / Steam / Others	Rc	15A ～ 50A	Cast Iron	183	N/A

From: ₹ 12,022.78
Days to Ship: 19 Day(s) or more

19 Day(s) or more

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[R12·R22·R407C/R410A]Service sight glass

ESCO

[Features]·You can check the flow of the refrigerant during its collection and charging.

Type	Applicable Fluid	Connection Type	Nominal Diameter	Body Material	Maximum Operating Temperature(℃)	Lining / Coating
Perspective Formula	-	-	-	-	-	-

From: ₹ 2,118.80
Days to Ship: 5 Day(s) or more

5 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Type
Applicable Fluid
Connection Type
Nominal Diameter
Body Material
Maximum Operating Temperature(℃)
Lining / Coating

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Brand	WASHINOKIKI	YOSHITAKE	YOSHITAKE	WASHINOKIKI	WASHINOKIKI	WASHINOKIKI	WASHINOKIKI	YOSHITAKE	YOSHITAKE	YOSHITAKE	YOSHITAKE	YOSHITAKE	YOSHITAKE	WASHINOKIKI	WASHINOKIKI	WASHINOKIKI	WASHINOKIKI	MIYAWAKI	MIYAWAKI	ESCO
Product Series	Stainless steel flapper type sight glasses GKF13F/GKF14F	Sight Glasses SF-1F Series	Sight Glass, SF-1S Series	Stainless Steel Flapper-Type Sight Glass, GKF13S/GKF14S	Stainless steel ball type sight glasses GKB13F/GKB14F	Flapper Type Sight Glasses GFAF	Gun metal sight glass GMBCS/GBMBCS	Sight Glasses 150F-13S Series	Sight Glasses 150L-13S Series	Sight Glass, 400 Series	Sight Glasses SB-1F Series	Sight Glasses SB-1S Series	Sight Glasses SL-1S Series	Stainless Steel Ball Type Sight Glass,GKB13S/GKB14S	Stainless steel transparent sight glasses GK13F/GK14F	Stainless Steel Transparent Sight Glasses GK13S/GK14S	Ball type sight glasses GKBF/GBAF	Site checker TS1	Double-sided glass fluoroscopic sight glass (trap tester) T3 type	[R12·R22·R407C/R410A]Service sight glass
CAD		2D	2D					2D	2D		2D		2D
From	₹ 48,887.31	₹ 11,842.55	₹ 6,660.56	₹ 20,450.67	₹ 170,970.38	₹ 20,410.45	₹ 8,822.02	₹ 19,331.42	₹ 66,925.62	₹ 8,796.02	₹ 11,838.53	₹ 6,660.56	₹ 5,611.82	₹ 16,149.87	₹ 97,629.18	₹ 15,119.20	₹ 78,905.80	₹ 15,065.89	₹ 12,022.78	₹ 2,118.80
Days to Ship	11 Day(s) or more	9 Day(s) or more	5 Day(s) or more	5 Day(s) or more	26 Day(s) or more	11 Day(s) or more	9 Day(s) or more	9 Day(s) or more	9 Day(s) or more	5 Day(s) or more	9 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	11 Day(s) or more	5 Day(s) or more	11 Day(s) or more	19 Day(s) or more	19 Day(s) or more	5 Day(s) or more
Type	Flapper Type	Flapper Type	Flapper Type	Flapper Type	Ball Type	Flapper Type	Perspective Formula / Ball Type	Flapper Type	Perspective Formula	Spinner Type	Ball Type	Ball Type	Perspective Formula	Ball Type	Perspective Formula	Perspective Formula	Ball Type	Ball Type	Flapper Type	Perspective Formula
Applicable Fluid	Water / Steam	Water / Oil / Others	Water / Oil / Others	Water / Steam	Water / Steam	Water / Steam	Water / Steam	Water / Oil / Others	Water / Oil / Others	Water / Oil / Others	Water / Oil / Others	Water / Oil / Others	Water / Oil / Others	Water / Steam	Water / Steam	Water / Steam	Water / Steam	Water / Steam	Water / Oil / Steam / Others	-
Connection Type	Flange	Flange	Rc	Rc	Flange	Flange	Rc	Rc	Rc	Rc	Flange	Rc	Rc	Rc	Flange	Rc	Flange	Rc	Rc	-
Nominal Diameter	15A ～ 50A	15A ～ 40A	15A ～ 50A	8A ～ 32A	65A	15A ～ 50A	8A ～ 50A	15A ～ 50A	50A	10A ～ 25A	15A ～ 50A	15A ～ 50A	15A ～ 50A	8A ～ 50A	32A ～ 50A	8A ～ 25A	65A	15A ～ 25A	15A ～ 50A	-
Body Material	Stainless	Cast Iron	Cast Iron	Stainless	Stainless	Cast Iron	Copper	Stainless	Stainless	Copper	Cast Iron	Cast Iron	Cast Iron	Stainless	Stainless	Stainless	Cast Iron	Copper	Cast Iron	-
Maximum Operating Temperature(℃)	150	150	150	150	85	150	85 ～ 110	150	150	100	85	85	150	85	150	150	85	-	183	-
Lining / Coating	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	N/A	N/A	-