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  5. Flow Measuring Instruments
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  7. Sight Glass Flow Indicators

Sight Glass Flow Indicators (548 items) - Page 2

Ranco Sight Glass, 4 11/16 in L, 3/8 in Sz RSG-3S
Ranco

Sight Glass, 4 11/16 in L, 3/8 in Sz

Zoro # G422386208
Mfr # RSG-3S
product price:  $16.99
/ea
Oil-Rite Fused Window Sights - 3/8in. NPTF, 3/4in., Stainless Steel, Aluminum Ball, 15/32in. A4959-2
Oil-Rite

Fused Window Sights - 3/8in. NPTF, 3/4in., Stainless Steel, Aluminum Ball, 15/32in.

Zoro # G716547483
Mfr # A4959-2
product price:  $8.95
/ea
J.W. Winco GN743.7-32-1-1/4-NPT-A Oil Sight Glass 125PTK4
J.W. Winco

GN743.7-32-1-1/4-NPT-A Oil Sight Glass

Zoro # G4681944
Mfr # 125PTK4
product price:  $37.95
/ea
Gems Sensors Flow Rate Indicator, Rotor, 30 GPM Max RFI, 180392
Gems Sensors

Flow Rate Indicator, Rotor, 30 GPM Max

Zoro # G1913301
Mfr # RFI, 180392
product price:  $215.99
/ea
Dwyer Instruments Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg). SFI-300SS-1
Dwyer Instruments

Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg).

Zoro # G7454727
Mfr # SFI-300SS-1
product price:  $618.99
/ea
J.W. Winco GN743.1-14-G1/2-A Oil Sight Glass Aluminum 743.1-14-G1/2-A
J.W. Winco

GN743.1-14-G1/2-A Oil Sight Glass Aluminum

Zoro # G4715955
Mfr # 743.1-14-G1/2-A
product price:  $15.89
/ea
Gems Sensors Flow Rate Monitor, Rotor, 30 GPM Max RFO, 194761
Gems Sensors

Flow Rate Monitor, Rotor, 30 GPM Max

Zoro # G2644031
Mfr # RFO, 194761
product price:  $291.99
/ea
Gems Sensors Flow Rate Monitor, Rotor, 20 GPM Max RFO, 156262
Gems Sensors

Flow Rate Monitor, Rotor, 20 GPM Max

Zoro # G0994917
Mfr # RFO, 156262
product price:  $310.99
/ea
J.W. Winco GN743-24-G1-B Oil Sight Glass 743-24-G1-B
J.W. Winco

GN743-24-G1-B Oil Sight Glass

Zoro # G4714570
Mfr # 743-24-G1-B
product price:  $17.49
/ea
J.W. Winco GN743-32-G1-1/4-A Oil Sight Glass 743-32-G11/4-A
J.W. Winco

GN743-32-G1-1/4-A Oil Sight Glass

Zoro # G4717985
Mfr # 743-32-G11/4-A
product price:  $23.55
/ea
Dwyer Instruments Sight flow indicator, 1/4" body, 3.000" L x 1.813" D x 2.125" H (76 x 46 x 54 mm), 1.1 lb (0.5 kg). SFI-100-1/4
Dwyer Instruments

Sight flow indicator, 1/4" body, 3.000" L x 1.813" D x 2.125" H (76 x 46 x 54 mm), 1.1 lb (0.5 kg).

Zoro # G7627541
Mfr # SFI-100-1/4
product price:  $214.99
/ea
Oil-Rite 303 Stainless Steel Window Flow Sights - 9/16in. dia, 1/2in. Female NPT, 1/2in. Female NPT, Buna-N B4766-4B
Oil-Rite

303 Stainless Steel Window Flow Sights - 9/16in. dia, 1/2in. Female NPT, 1/2in. Female NPT, Buna-N

Zoro # G216547556
Mfr # B4766-4B
product price:  $90.45
/ea
J.W. Winco GN743-32-M42X1.5-A Oil Sight Glass 743-32-M42X1.5-A
J.W. Winco

GN743-32-M42X1.5-A Oil Sight Glass

Zoro # G4715550
Mfr # 743-32-M42X1.5-A
product price:  $19.99
/ea
J.W. Winco GN743.3-18-G3/4-A Oil Sight Glass Brass 743.3-18-G3/4-A
J.W. Winco

GN743.3-18-G3/4-A Oil Sight Glass Brass

Zoro # G4705254
Mfr # 743.3-18-G3/4-A
product price:  $23.29
/ea
Oil-Rite Fused Window Sights - 1in. NPT, 1 3/8in., Stainless Steel, Aluminum Ball, 1in. A4959-1
Oil-Rite

Fused Window Sights - 1in. NPT, 1 3/8in., Stainless Steel, Aluminum Ball, 1in.

Zoro # G016547596
Mfr # A4959-1
product price:  $12.59
/ea
J.W. Winco GN743-18-G3/4-B Oil Sight Glass 743-18-G3/4-B
J.W. Winco

GN743-18-G3/4-B Oil Sight Glass

Zoro # G4721485
Mfr # 743-18-G3/4-B
product price:  $14.89
/ea
J.W. Winco GN743.7-11-3/8-NPT-A Oil Sight Glass 6PTK0
J.W. Winco

GN743.7-11-3/8-NPT-A Oil Sight Glass

Zoro # G4709278
Mfr # 6PTK0
product price:  $21.89
/ea
J.W. Winco GN743-14-M20X1.5-A Oil Sight Glass 743-14-M20X1.5-A
J.W. Winco

GN743-14-M20X1.5-A Oil Sight Glass

Zoro # G4721555
Mfr # 743-14-M20X1.5-A
product price:  $11.69
/ea
J.W. Winco GN743.7-14-1/2-NPT-B Oil Sight Glass 8PTK6
J.W. Winco

GN743.7-14-1/2-NPT-B Oil Sight Glass

Zoro # G4705297
Mfr # 8PTK6
product price:  $16.15
/ea
Petol Gearench 2 Inchx8 Inch 500Psi Petol Sightglass 306-SG0500
Petol Gearench

2 Inchx8 Inch 500Psi Petol Sightglass

Zoro # G715440372
Mfr # 306-SG0500
product price:  $105.99
/ea
Dwyer Instruments Sight flow indicator, 1/2" body, 3.688" L x 2.250" H (94 x 57 mm), 2.4 lb (1.1 kg). SFI-700-1/2
Dwyer Instruments

Sight flow indicator, 1/2" body, 3.688" L x 2.250" H (94 x 57 mm), 2.4 lb (1.1 kg).

Zoro # G710389416
Mfr # SFI-700-1/2
product price:  $675.99
/ea
Dixon Replacement Glass, 2 in, For Use with B54BMP In-Line Sight Glass, Borosilicate Glass B54G-P200
Dixon

Replacement Glass, 2 in, For Use with B54BMP In-Line Sight Glass, Borosilicate Glass

Zoro # G509195907
Mfr # B54G-P200
product price:  $230.99
/ea
Dwyer Instruments Polycarbonate sight flow indicator only, range 2-20 GPM (7.6-75.5 LPM), 1/2" female NPT. SFI-801-1/2
Dwyer Instruments

Polycarbonate sight flow indicator only, range 2-20 GPM (7.6-75.5 LPM), 1/2" female NPT.

Zoro # G207149028
Mfr # SFI-801-1/2
product price:  $112.99
/ea
Dwyer Instruments Sight flow indicator, 2" body, 5.500" L x 3.688" D x 4.063" H (140 x 93 x 103 mm), 7.0 lb (3.2 kg). SFI-300-2
Dwyer Instruments

Sight flow indicator, 2" body, 5.500" L x 3.688" D x 4.063" H (140 x 93 x 103 mm), 7.0 lb (3.2 kg).

Zoro # G7613322
Mfr # SFI-300-2
product price:  $867.99
/ea
J.W. Winco GN743.5-24-G1-B Oil Sight Glass 743.5-24-G1-B
J.W. Winco

GN743.5-24-G1-B Oil Sight Glass

Zoro # G4668766
Mfr # 743.5-24-G1-B
product price:  $44.79
/ea
Dwyer Instruments Sight window, 1-1/2" male NPT. SFI-550-1-1/2
Dwyer Instruments

Sight window, 1-1/2" male NPT.

Zoro # G807149183
Mfr # SFI-550-1-1/2
product price:  $89.50
/ea
Dixon 1 Side Beveled Flanged Sight Flow Indicator, 1-3/4 in Sight, 4 in TTMA, 150 psi TT4ASG-ETH
Dixon

1 Side Beveled Flanged Sight Flow Indicator, 1-3/4 in Sight, 4 in TTMA, 150 psi

Zoro # G310375109
Mfr # TT4ASG-ETH
product price:  $358.99
/ea
Dwyer Instruments Sight window, 3/4" male NPT. SFI-550-3/4
Dwyer Instruments

Sight window, 3/4" male NPT.

Zoro # G307149133
Mfr # SFI-550-3/4
product price:  $33.00
/ea
J.W. Winco GN743.8-11-3/8-NPT-A Oil SIght Glass 6PSMA
J.W. Winco

GN743.8-11-3/8-NPT-A Oil SIght Glass

Zoro # G4712540
Mfr # 6PSMA
product price:  $16.19
/ea
Dwyer Instruments Double Sight Flow Indicator, Brnz, 1-1/2In SFI-300-1-1/2
Dwyer Instruments

Double Sight Flow Indicator, Brnz, 1-1/2In

Zoro # G7569737
Mfr # SFI-300-1-1/2
product price:  $737.99
/ea
Gems Sensors Flow Rate Indicator, Rotor, 60 GPM Max RFI, 181681
Gems Sensors

Flow Rate Indicator, Rotor, 60 GPM Max

Zoro # G0674965
Mfr # RFI, 181681
product price:  $229.68
/ea
Gems Sensors Flow Rate Monitor, Rotor, 5 GPM Max RFO, 156261
Gems Sensors

Flow Rate Monitor, Rotor, 5 GPM Max

Zoro # G2649245
Mfr # RFO, 156261
product price:  $311.99
/ea
Oil-Rite Gasketed Window Sight NPT Thread - 1 1/2in. NPT, 2in., None, 50 PSI, Buna-N, 1 17/32in. B1740-7
Oil-Rite

Gasketed Window Sight NPT Thread - 1 1/2in. NPT, 2in., None, 50 PSI, Buna-N, 1 17/32in.

Zoro # G316547548
Mfr # B1740-7
product price:  $27.45
/ea
J.W. Winco GN743-11-M16X1.5-A Oil Sight Glass 743-11-M16X1.5-A
J.W. Winco

GN743-11-M16X1.5-A Oil Sight Glass

Zoro # G4715648
Mfr # 743-11-M16X1.5-A
product price:  $12.75
/ea
Oil-Rite 303 Stainless Steel Gasketed Window Sights NPT Thread - 1 1/2in. NPT, 2in., Viton Liquid Contact B4763-17V
Oil-Rite

303 Stainless Steel Gasketed Window Sights NPT Thread - 1 1/2in. NPT, 2in., Viton Liquid Contact

Zoro # G116547502
Mfr # B4763-17V
product price:  $86.35
/ea
J.W. Winco GN743.5-24-M33X1.5-B Oil Sight Glass 743.5-24-M33X1.5-B
J.W. Winco

GN743.5-24-M33X1.5-B Oil Sight Glass

Zoro # G4667856
Mfr # 743.5-24-M33X1.5-B
product price:  $41.69
/ea
Sight Glass Flow Indicators (548 items) - Page 2
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About Sight Glass Flow Indicators

Sight Glass Flow Indicators are a type of visual flow indicator used to measure the rate and direction of liquids, gases, and steam in pipes. They are a critical tool for many industries that rely on accurate measurements of flow in order to maintain safety and efficiency.

Types of Sight Glass Flow Indicators

There are several types of Sight Glass Flow Indicators commonly used today. Flanged sight glass flow indicators are often used when more accuracy is needed, while inline sight flow indicators are typically better suited for heavier duty applications. Oil flow sight glasses may be preferred for certain applications where viscosity is an issue. Water flow indicator sight glasses may also be necessary depending on the particular application.

How Sight Glass Flow Indicators are Made

Sight Glass Flow Indicators are typically made with high-quality glass and metal components. The glass allows professionals to visually inspect the contents inside the pipe while also allowing light to pass through so they can see what is happening inside the pipe. The metal components provide support and protection to ensure proper function over time.

Industries that use Sight Glass Flow Indicators

Sight Glass Flow Indicators can be found in a variety of industries, from plumbing and engineering to oil refining and chemical production. Professionals across these fields rely on these tools for their ability to accurately measure the rate, direction, temperature, pressure, and other characteristics related to liquid or gas flows.

Find the Sight Glass Flow Indicators You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of sight glass flow indicators, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

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1/2 flexzillanpt sight glass3/4 in all thread1" npt sight glassdwyer sight flow indicator
3/4 in sealtightsight flow indicator 2"3/4 sealtite3/4" velcrosight flow indicator 1"

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