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  3. Power Transmission
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  5. Fluids & Lubricants
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  7. Flow Sights

Flow Sights (29 items)

Ldi Industries Flow Sight, 1/4 in -18, 435 psi, 180 Degrees F F152
Ldi Industries

Flow Sight, 1/4 in -18, 435 psi, 180 Degrees F

Zoro # G3226991
Mfr # F152
product price: 
$50.89
/ea
Ldi Industries Flow Sight with Nylon Ball, 4.62 in H F154-01
Ldi Industries

Flow Sight with Nylon Ball, 4.62 in H

Zoro # G3370631
Mfr # F154-01
product price: 
$102.99
/ea
Ldi Industries Flow Sight, 4.62 in H, Brass F154
Ldi Industries

Flow Sight, 4.62 in H, Brass

Zoro # G2606353
Mfr # F154
product price: 
$97.69
/ea
Ldi Industries Flow Sight with Nylon Ball, 3.56 in H F152-01
Ldi Industries

Flow Sight with Nylon Ball, 3.56 in H

Zoro # G1652655
Mfr # F152-01
product price: 
$68.99
/ea
Ldi Industries Flow Sight, 5.25 in H, Brass F155
Ldi Industries

Flow Sight, 5.25 in H, Brass

Zoro # G2298457
Mfr # F155
product price: 
$117.99
/ea
Ldi Industries Wide View Flow Sight, 4.25 in H, Brass F301-04-01
Ldi Industries

Wide View Flow Sight, 4.25 in H, Brass

Zoro # G2548296
Mfr # F301-04-01
product price: 
$269.99
/ea
Trico Viewport, 1/2in NPT, 1-3/32 in. L 34305
Trico

Viewport, 1/2in NPT, 1-3/32 in. L

Zoro # G1858879
Mfr # 34305
product price: 
$28.65
/ea
Ldi Industries Flow Sight with Nylon Ball, 5.25 in H F155-01
Ldi Industries

Flow Sight with Nylon Ball, 5.25 in H

Zoro # G1742036
Mfr # F155-01
product price: 
$129.99
/ea
Ldi Industries Wide View Flow Sight, 4.88 in H, Brass F301-06-01
Ldi Industries

Wide View Flow Sight, 4.88 in H, Brass

Zoro # G2496331
Mfr # F301-06-01
product price: 
$252.99
/ea
Ldi Industries Wide View Flow Sight, 4.25 in H, Brass F301-05-01
Ldi Industries

Wide View Flow Sight, 4.25 in H, Brass

Zoro # G0578681
Mfr # F301-05-01
product price: 
$212.99
/ea
Oil-Rite Window Flow Sight for Full Flow - Special Config - 1/4in. Female NPT, 1/4in. Female NPT, 350 PSI YA7525-2
Oil-Rite

Window Flow Sight for Full Flow - Special Config - 1/4in. Female NPT, 1/4in. Female NPT, 350 PSI

Zoro # G816547567
Mfr # YA7525-2
product price: 
$29.49
/ea
Oil-Rite Window Flow Sight for Full Flow - 9/16in. dia, 1/2in. Female NPT, 1/2in. Female NPT, Buna-N A733-2
Oil-Rite

Window Flow Sight for Full Flow - 9/16in. dia, 1/2in. Female NPT, 1/2in. Female NPT, Buna-N

Zoro # G316547296
Mfr # A733-2
product price: 
$46.49
/ea
Oil-Rite Window Flow Sight for Full Flow - 3/4in. dia, 3/4in. Female NPT, 3/4in. Female NPT, Buna-N A2109-1
Oil-Rite

Window Flow Sight for Full Flow - 3/4in. dia, 3/4in. Female NPT, 3/4in. Female NPT, Buna-N

Zoro # G516547591
Mfr # A2109-1
product price: 
$45.79
/ea
Oil-Rite Window Flow Sight for Full Flow - 37/64in. dia, 3/8in. Female NPT, 3/8in. Female NPT, Buna-N A711-2
Oil-Rite

Window Flow Sight for Full Flow - 37/64in. dia, 3/8in. Female NPT, 3/8in. Female NPT, Buna-N

Zoro # G916547399
Mfr # A711-2
product price: 
$30.15
/ea
Oil-Rite Window Flow Sight for Full Flow - 7/16in. dia, 1/4in. Female NPT, 1/4in. Female NPT, Buna-N A715-2
Oil-Rite

Window Flow Sight for Full Flow - 7/16in. dia, 1/4in. Female NPT, 1/4in. Female NPT, Buna-N

Zoro # G216547334
Mfr # A715-2
product price: 
$27.39
/ea
Oil-Rite Window Flow Sight for Full Flow - 11/32in. dia, 1/8in. Female NPT, 1/8in. Female NPT, Buna-N A715-1
Oil-Rite

Window Flow Sight for Full Flow - 11/32in. dia, 1/8in. Female NPT, 1/8in. Female NPT, Buna-N

Zoro # G916547351
Mfr # A715-1
product price: 
$16.49
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 3/4in. Female NPT, 3/4in. Female NPT, Buna-N B4765-5B
Oil-Rite

Window Flow Sight with Ball Indicator - 3/4in. Female NPT, 3/4in. Female NPT, Buna-N

Zoro # G216547174
Mfr # B4765-5B
product price: 
$67.25
/ea
Oil-Rite Over Flow Sight - 13/16in. ID, 1 7/8in., 3/4in. Female NPT, 3/4in. Female NPT, Buna-N, Acrylic B239-2
Oil-Rite

Over Flow Sight - 13/16in. ID, 1 7/8in., 3/4in. Female NPT, 3/4in. Female NPT, Buna-N, Acrylic

Zoro # G616547590
Mfr # B239-2
product price: 
$183.99
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 1/8in. Female NPT, 1/8in. Female NPT, Buna-N B4765-1B
Oil-Rite

Window Flow Sight with Ball Indicator - 1/8in. Female NPT, 1/8in. Female NPT, Buna-N

Zoro # G516547317
Mfr # B4765-1B
product price: 
$52.15
/ea
Oil-Rite Over Flow Sight - 9/16in. ID, 1 7/8in., 1/2in. Female NPT, 1/2in. Female NPT, Buna-N, Acrylic B239-1
Oil-Rite

Over Flow Sight - 9/16in. ID, 1 7/8in., 1/2in. Female NPT, 1/2in. Female NPT, Buna-N, Acrylic

Zoro # G316547579
Mfr # B239-1
product price: 
$261.99
/ea
Oil-Rite Over Flow Sight - 13/16in. ID, 1 7/8in., 3/4in. Female NPT, 3/4in. Female NPT, Buna-N, Pyrex B239-6
Oil-Rite

Over Flow Sight - 13/16in. ID, 1 7/8in., 3/4in. Female NPT, 3/4in. Female NPT, Buna-N, Pyrex

Zoro # G916547481
Mfr # B239-6
product price: 
$191.99
/ea
Ldi Industries Double Window Flow Sight, 4.62 in H, Brass F251-06-01
Ldi Industries

Double Window Flow Sight, 4.62 in H, Brass

Zoro # G2532801
Mfr # F251-06-01
product price: 
$303.99
/ea
Oil-Rite Over Flow Sight - 15/16in. ID, 1 7/8in., 1in. Female NPT, 1in. Female NPT, Buna-N, Acrylic B239-3
Oil-Rite

Over Flow Sight - 15/16in. ID, 1 7/8in., 1in. Female NPT, 1in. Female NPT, Buna-N, Acrylic

Zoro # G116547472
Mfr # B239-3
product price: 
$182.99
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 1/2in. Female NPT, 1/2in. Female NPT, Buna-N B4765-4B
Oil-Rite

Window Flow Sight with Ball Indicator - 1/2in. Female NPT, 1/2in. Female NPT, Buna-N

Zoro # G816547178
Mfr # B4765-4B
product price: 
$72.15
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 1/4in. Female NPT, 1/4in. Female NPT, Buna-N B4765-2B
Oil-Rite

Window Flow Sight with Ball Indicator - 1/4in. Female NPT, 1/4in. Female NPT, Buna-N

Zoro # G516547195
Mfr # B4765-2B
product price: 
$56.49
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 3/8in. Female NPT, 3/8in. Female NPT, Viton Liquid Contact B4765-3V
Oil-Rite

Window Flow Sight with Ball Indicator - 3/8in. Female NPT, 3/8in. Female NPT, Viton Liquid Contact

Zoro # G916547177
Mfr # B4765-3V
product price: 
$40.15
/ea
Oil-Rite Over Flow Sight - 9/16in. ID, 1 1/2in., 1/2in. Female NPT, 1/2in. Female NPT, Buna-N, Acrylic B239-4
Oil-Rite

Over Flow Sight - 9/16in. ID, 1 1/2in., 1/2in. Female NPT, 1/2in. Female NPT, Buna-N, Acrylic

Zoro # G116547496
Mfr # B239-4
product price: 
$184.99
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 3/8in. Female NPT, 3/8in. Female NPT, Buna-N B4765-3B
Oil-Rite

Window Flow Sight with Ball Indicator - 3/8in. Female NPT, 3/8in. Female NPT, Buna-N

Zoro # G716547155
Mfr # B4765-3B
product price: 
$59.59
/ea
Oil-Rite Window Flow Sight with Ball Indicator - 3/4in. Female NPT, 3/4in. Female NPT, Viton Liquid Contact B4765-5V
Oil-Rite

Window Flow Sight with Ball Indicator - 3/4in. Female NPT, 3/4in. Female NPT, Viton Liquid Contact

Zoro # G016547602
Mfr # B4765-5V
product price: 
$71.99
/ea
Flow Sights (29 items)
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Frequently Asked Questions

A flow sight is a device attached to a liquid flow meter or in-line with piping that visualizes the flow of fluid in a pipe. They are used to verify flow, indicate flow velocity, or measure flow rate, either with numerical data or as a reference to detect changes in the flow.

Flow sights are designed with a window and indicator. As the fluid flows through the pipe, the indicator inside the sight will move, providing an indication of the fluid's flow rate or velocity.

Flow sights are usually made of durable, transparent materials that can withstand varying fluids and pressures. Common materials include acrylic, glass, and stainless steel.

Flow sights come in various types such as Pressure Loss Independent (PLI), Variable Area, and Turbine Flow Sights, each designed for different flow applications. The type of flow sight required will depend on the specific application and the desired level of accuracy and flow rate being measured.

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