✔ In Stock (Can ship in 5-7 days)

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PVC Lens: 9 bar (130 psig) at 21°C (70°F)
PVDF Lens ("-PVDF" Option): 150 psig (10 bar) @ 21°C (70°F)
Max Fluid Temperature:
PVC Lens, FNPT Connectors: 54°C (130°F) at 0 PSI
PVDF Lens ("-PVDF" Option), Tubing Connectors: 93°C (200°F) at 0 PSI
Full Scale Accuracy: ±6%
Input Power Requirement: 9 to 28 Vdc
Sensor Type: Infrared light beam
Alarm Output: Open collector 30 Vdc max
Enclosure: NEMA 4X (IP56)
Approximate Shipping Wt: 0.45 kg (1 lb) Materials of Construction
Body, Paddle, Axle Material: PVDF Connector Material
FNPT Connections: PVC
Tubing Connectors: PVDF Viewing Lens Material Option
Clear See Through: PVC
Opaque Chemical Resistant: PVDF (optional)
O-Ring Seals: FKM (EPDM optional)
Compression Seal to Pump: PVC Sensor Only
Models: 5 Vdc digital square wave (2-wire)
Output: 3-wire shielded cable, 1.8 m (6')
Ask questions
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- Q: Do I need to pay for shipping when returning a product?
A: According to our return policy, if the return is due to product quality issues or our mistake, we will cover the return shipping fee. If it's for other reasons, the return shipping fee may be borne by you. Please refer to our return policy for specific details.
- Q: How can I check the stock status of a product?
A: On the product details page, you can check the stock status of the item. If a product is temporarily out of stock, we will restock it as soon as possible or provide a pre-order option.
- Q: How can I find out about product recalls or safety alerts?
A: We prioritize the safety of our customers and comply with product recall and safety alert notifications. You can stay informed about product recalls by regularly checking our website's safety alert section or subscribing to relevant product safety authorities' notifications.
Reviews
- B
Barbara Farrell
Aug 09, 2025
Omega Flowmeter FTB321DMuy rápido y cómodoHelpfulUnhelpful - J
Joseph Morrison
Dec 30, 2024
Omega Flowmeter FTB321DI was able to track down some parts, which is a big accomplishment.HelpfulUnhelpful - F
Frank Rich
Sep 26, 2023
Omega Flowmeter FTB321DYour website was super user-friendly and the checkout process was a breeze.HelpfulUnhelpful - C
Clint Rossiter
Sep 23, 2023
Omega Flowmeter FTB321DGreat job, OKmarts! You guys really know how to provide excellent service - had what I needed and got it to me ASAP!HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Omega Flowmeter FTB321DAll was ok! No problems whatsoever.HelpfulUnhelpful
Omega Flowmeter FTB321D
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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