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Replaceable Dwyer Airflow Switch Fire Retardant In Ducts

Certification
China Keram (Nanjing)ELECTRICAL Equipment Co., Ltd. certification
China Keram (Nanjing)ELECTRICAL Equipment Co., Ltd. certification
Customer Reviews
The flow switch is very good, the appearance is also beautiful, in line with the manufacturer's description.

—— KENT

The differential pressure transmitter is in line with my use requirements, and the manufacturer is also very cooperative, helping me solve a lot of problems, and the service is very good.

—— John

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Replaceable Dwyer Airflow Switch Fire Retardant In Ducts

Replaceable Dwyer Airflow Switch Fire Retardant In Ducts
Replaceable Dwyer Airflow Switch Fire Retardant In Ducts
Replaceable Dwyer Airflow Switch Fire Retardant In Ducts Replaceable Dwyer Airflow Switch Fire Retardant In Ducts Replaceable Dwyer Airflow Switch Fire Retardant In Ducts

Large Image :  Replaceable Dwyer Airflow Switch Fire Retardant In Ducts

Product Details:
Place of Origin: China
Brand Name: Keramcontrols
Certification: CE
Model Number: KAFS
Payment & Shipping Terms:
Minimum Order Quantity: 10
Packaging Details: Carton
Delivery Time: 7days
Payment Terms: L/C, T/T
Supply Ability: 2000pics/month

Replaceable Dwyer Airflow Switch Fire Retardant In Ducts

Description
Type Of Operation: On/Off,single-stage,micro Switch Flow Applications: Air And Non Aggressive Gases
Permissible Ambient Humidity: 10...90%RH,non-condensing Protection: IP65
Material: Base:steel,galvanized; Cover:ABS,fire Retardant Or PC
High Light:

Dwyer Air Flow Switch

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Replaceable Dwyer Airflow Switch

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Fire Retardant Airflow Switch

Replaceable dwyer air flow switch

 

Description

 

The duct air flow switch provides feedback of air flow in HVAC duct work. It can be directly connected to the control system as a feedback point or interlocked to prevent operation of heating and cooling equipment when there is no air flow. The stainless steel paddle resists corrosion. An adjustable spring tension screw allows setting the air flow trip point from 200 to 1800 FPM (1 to 9.2 m/sec). The paddle can be trimmed down for higher flow applications. The cable enters through the water tight gland, or the gland can be removed and replaced with an EMT or flex connector for wiring with EMT or metal flex.


Application

 

Control and monitor air and non aggressive gases flow in ducts, chambers, etc.,of heating, cooling, and air conditioning equipment.


Features

 

● Renovated SPDT micro switch ensures the reliable switch function

● Stainless steel paddle

● Cut-in and cut-out

● Brass level

● IP65


Technical data

 

Model KAFS
Type of operation On/Off,single-stage,micro switch
Flow rate switching  
- Cut-out Min. 1.0 m/sec, Max. 8.0 m/sec
- Cut-in Min. 2.5 m/sec, Max. 9.2 m/sec
Flow rate setting adjustment Internal screw
Sensing element Paddle
Paddle size 3.2 x 6.9 in. (80 x 175 mm)
Paddle w/level - Length 7.9 in. (200 mm)
Flow applications Air and non aggressive gases
Paddle material Stainless steel
Paddle level material Brass
Permissible ambient temperature  
- Housing -40℉ to 185℉(-40℃ to 85℃)
- Paddle 14℉ to 185℉(-10℃ to 85℃)
Permissible ambient humidity 10...90%RH,non-condensing
Cable entry M18 fitting
Housing - Material Base:Steel,galvanized; Cover:ABS,fire retardant or PC
- Color white
- Protection IP65
Installation Duct mounted
Ship weight 0.7kg

Installation

 

The flow switch should be mounted into a duct or chamber where the air paddle can freely point horizontally downwards. To avoid air swirl and paddle instability, straight zones should be provided for a length of 5 times the diameter of duct upstream and downstream from the installation location.

 

Note:

 

The units are factory calibrated to the minimum switch-off value. To increase the set value, adjust the range screw clockwise. Due to the risk of fracture at air speeds of higher than 5.0 m/sec, the paddle must be cut off on the marked side. When the paddle is cut off, the minimum cut-out value increases from 1.0 m/sec to 2.5 m/sec.


Electrical Wiring

 

 

Replaceable Dwyer Airflow Switch Fire Retardant In Ducts 0


Dimensions (mm)

 

Replaceable Dwyer Airflow Switch Fire Retardant In Ducts 1

Replaceable Dwyer Airflow Switch Fire Retardant In Ducts 2

 

FAQ

 

1 Q: What's the delivery time?

A: According to the specification and quantity of your order, generally 4

days for normal standard products within 10pcs.

 

2 Q:Are you manufacturer or trading company?

A: We are manufacturer with many years of experience.We have our

own factory.Welcome to visit our factory.

 

3 Q: Can we use our logo on the products?

A: Yes.We can provide OEM service.

 

4 Q: Do you have products with ex-proof certificate?

A: Yes,we can offer intrinsic-safety and flame proof certificates.

 

5 Q: What is the warranty of your products?

A: Normal is 12 months.

 

6 Q: What's the means of transport?

A: Express such as TNT,Fedex,DHL,UPS, or logistics by indicator.

 

Contact Details
Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.

Contact Person: Jackchen

Tel: 17805133926

Send your inquiry directly to us (0 / 3000)