Sign In

Flat Shipping at £19.99 + VAT

DWYER INSTRUMENTS SFI-300-1/2 Double Sight Flow Indicator, 1/2 Inch Size, Bronze | AB6LJL 21XL69

DWYER INSTRUMENTS SFI-300-1/2 Double Sight Flow Indicator, 1/2 Inch Size, Bronze

Item: AB6LJL Model: SFI-300-1/2Cross Ref: 21XL69
In Stock

Get it by Monday, Dec 2

£19.99 Flat Shipping + VAT £19.99 flat shipping is applicable on orders with an aggregate weight less than 10kg. Orders exceeding 10kg will be charged default shipping rates

£427.19 /unit (Inc. VAT)
Trade Prices Available
Add To Cart
Request a Quote

Payment Methods

Delivery Partners

How NET30 Works

Step 1 Add the items into your cart or submit a Purchase order

Step 2 Checkout, select NET30 payment (provide company registration and VAT number)

Step 3 Delivery via TNT or Royal Mail and receive invoice for payment in 30-days

Step 4 Make payment via BACS to our factoring partner,

Product Specifications:

ItemWindow Sight Flow Indicator with Impeller
Body MaterialBronze
Connection TypeFnpt
Depth2 3/4"
Height2 4/7"
Impeller MaterialABS
Length4"
Lens MaterialTempered Glass
Max. Pressure125 psi
Number Of Windows1
Overall Depth2 3/4"
Overall Height2 4/7"
Overall Length4"
Pipe Size1/2"
Seal MaterialBuna-N and Fiber
Sight Dia.2 1/32"
Temp. Limit (deg. F)200 Deg. F
Temp. Range200 Deg. F

Shipping Info:

Ship weight (kg) 1.1
Ship height (cm)9.14
Ship length (cm)14.22
Ship width (cm)9.14
HS code9026107000
Country of OriginUS

Product Details:

Dwyer Instruments SFI-300-1/2 double window sight flow indicator displays the level of liquids in a tank or the presence or purity of liquids in a pipe system. It is used in chemical, manufacturing and other industrial facilities to monitor chemical processes and helps find flow disruptions, leaks and pollutants.

Features:

  • Dwyer sight flow indicator, SFI-300-1/2, comes with a rotating impeller to observe the direction of the flow.
  • It features Buna-N and fibre-constructed seals for excellent abrasion resistance.
  • The unit has two removable tempered glass windows for ease of maintenance.
  • It is made of bronze to provide heat conductivity and shock resistance.
  • This Dwyer flow indicator can operate at temperatures ranging from 32 to 200 degrees Fahrenheit.

Standards and Approvals:

  • ANSI

Frequently Asked Questions:

Q. What is the difference between a flow indicator and a flow transmitter?

A. A sight flow indicator is used to monitor the fluid flow in a length of pipe. On the other hand, in addition to measuring the flow rate, flow transmitters also aid in controlling and monitoring it.

Q. Where should the oil be on the sight glass?

A. It is advised to install the oil sight glass (OSG) at the oil reservoir's lowest position, usually the drain port. Water pollution will move to the OSG, where it may be purged from the system and will get separated from good-grade oils.

Q. What does bubbles in a sight glass mean?

A. In the sight glass downstream of the receiver, bubbling and flashing may happen during starting of some refrigeration systems when there is a heavy load on the system. This bubbling is brought on by a pressure drop at the receiver's output tube entrance. Rapid increases in load may also cause bubbling.

Documentation:

Datasheet

Product Variants

ProductModelBody MaterialDepthHeightImpeller MaterialLengthPipe SizePrice
DWYER INSTRUMENTS SFI-100-1/2 Single Sight Flow Indicator, 1/2 Inch Size, Bronze | AB6LJF 21XL61
SFI-100-1/2Bronze2 1/4"3 5/8"ABS4"1/2"£313.48
DWYER INSTRUMENTS SFI-100-3/4 Single Sight Flow Indicator, 3/4 Inch Size, Bronze | AB6LJG 21XL62
SFI-100-3/4Bronze2 1/4"2 4/7"ABS4"3/4"£306.29
DWYER INSTRUMENTS SFI-100-1 Single Sight Flow Indicator, 1 Inch Size, Bronze | AB6LJH 21XL63
SFI-100-1Bronze2 4/7"2 5/8"ABS4 3/8"1"£381.42
DWYER INSTRUMENTS SFI-100-1-1/2 Single Sight Flow Indicator, 1-1/2 Inch Size, Bronze | AB6LJJ 21XL65
SFI-100-1-1/2Bronze3 1/4"3 5/8"ABS5 11/16"1 1/2"£641.68
DWYER INSTRUMENTS SFI-100-2 Single Sight Flow Indicator, 2 Inch Size, Bronze | AB6LJK 21XL66
SFI-100-2Bronze3 1/4"3 5/8"ABS5 11/16"2"£718.12
DWYER INSTRUMENTS SFI-300-2 Double Sight Flow Indicator, 2 Inch Size, Bronze | AB6LJM 21XL74
SFI-300-2Bronze3 2/3"4"ABS5 11/16"2"£960.73
DWYER INSTRUMENTS SFI-300SS-1 Double Sight Flow Indicator, 316 Stainless Steel, 1 Inch Size | AB6LJN 21XL79
SFI-300SS-1Stainless Steel3 1/8"2 4/7"Stainless Steel4 3/8"1"£725.95

Explore Products

Contact us

Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.

DWYER INSTRUMENTS SFI-300-1/2 Double Sight Flow Indicator, 1/2 Inch Size, Bronze
£427.19 /unit (Inc. VAT)