Categories | Electric Pressure Controller |
---|---|
type: | Measuring Instruments |
Case: | ABS Screw |
Material: | Plastic |
Scale range: | 0.5 to 4 bar (7.14 to 57 psig) |
Coated: | gray baking varnish |
Product name: | Differential pressure switch |
Application: | pressure sensitive switch |
Color: | Customer's Request |
Weather Proof: | IP65 |
Name: | High Quality Differential Pressure Control Switch |
Place of Origin: | Hunan, China |
Brand Name: | WINNER |
Certification: | CE |
MOQ: | 10Pcs |
Price: | negotiation |
Packaging Details: | Carton box |
Delivery Time: | 3-7 work days |
Payment Terms: | T/T, Paypal,Western Union |
Supply Ability: | 5000+ per months |
Company Info. |
Winner Ball Valves Co.,Ltd |
View Contact Details |
Product List |
High Quality Differential PressureControl Switch
Differential pressure control is normally used in water system of central air-condition to control the pressure differential between the pipe of water providing & the pipe of water returning. It is different from other pressure differential controls, which has a SPDT contact. Through the movement of the floating contact, the control reaches the contact and makes the engine driver to operate the valve. A typical sample of application is to equip the valve in the side pipe near the system water pump. When the pressure differential between the pipe of water providing & the pipe of water returning is over the pre-set pressure, the valve will wide open, more water goes through the side valve, which will reduce the pressure differential between these two pipes of the water system. On the opposite, the pressure differential will increase between these two pipes of the water system.
Application:
The WP74JA pressure controller combines two pressure elements with
high sensitivity, which are facing each other. This product is
often used in refrigeration system to balance the pressure
difference between the water collector and the water separator.
After the controller's SPDT floating point action turns on the
contact, the bypass valve is opened and closed to achieve a balance
of supply and return water pressure difference. When the system
differential pressure increases beyond the controller setting, the
valve opens up. More water turns through the bypass valve, which
reduces the system's supply and return water pressure differential.
The TP74JA is also suitable for other gas or liquid differential
applications.
Feature
1. Single-pole double-gate, fully enclosed Penn switch
2. 1/4`` The horn pressure riser is connected to the sensitive
component, making the installation easy on site.
3. Direct reading scale can quickly determine the set point
4. Change the differential pressure setting without moving the
cover.
5. Flexible mounting board is suitable for different locations
Easy for installation
Parameters
Product | WP74JA pressure differential controller | |
Scale range | 0.5 to 4 bar (7.14 to 57 psig) | |
Operating pressure difference | 0.14bar (2psig ) | |
Electrical specifications | 2A, 24V AC, 50/60Hz | |
Contact Element | SPDT Fully Enclosed Floating Penn Switch | |
Material | Box | 0.062`` (1.6mm) cold rolled steel |
Housing | ABS | |
Coated | gray baking varnish | |
Installation | Mounting on a flat surface or with a 271-51 universal mounting bracket | |
Wire connection | connect with color code spiral type red terminal | |
Shipping Weight | Separately packed | 2.4 lbs (1.1 kg) |
Assembly from 25 pieces | 62.5 lbs (28.4 kg) | |
Operating ambient temperature | minimum 30°F (-1°C) up to 140F (60°C) |
Installation:
Mount the controller anywhere on a flat surface or control panel.
Use the holes on the back of the box to tighten with two screws or
bolts. The controller should be installed such that the bellows
joint is above the level of the equipment used, which reduces the
likelihood of external defects accumulating in the bellows. Let the
capillaries relax to avoid "string" vibrations when too tight,
resulting in capillary breakage. The lower part is marked with
"H.P." and is connected to the high water pressure line by a copper
tube, and the upper part is connected to the low water pressure
line by a copper tube. The copper pipe joints shall form the
corresponding bell mouth.
Debugging:
Insert the screwdriver into the gap of the turntable below the low
water pressure inlet, and turn the turntable until the dial pointer
is aligned to the desired position. Rotate the turntable to the
left to increase the set value or rotate to the right to reduce the
difference. Set value.
Wiring diagram:
(1) If the electric valve actuator is an electric ball valve
driver, the red line (or the valve closing line) of the driver is
connected to the yellow terminal, and the brown wire (or the valve
opening line) of the driver is connected to the blue line.
(2) If the electric valve actuator is an electric butterfly valve
driver, the red line (or the valve closing line) of the driver is
connected to the yellow terminal, and the brown line (or the valve
opening line) of the driver is connected to the blue line.
(3) If the electric valve actuator is a large-diameter electric
butterfly valve, the valve closing terminal 4 of the driver is
connected to the yellow end of the differential pressure
controller, and the valve opening terminal 3 of the driver is
connected to the blue end.
FAQ
1. Could I have prices of your products?
Welcome. Pls feel free to send us an inquiry here. You will get our
reply in 24 hours
2. Can we print our logo/website/company name on products?
Yes, please advise the size and Pantone Code of the logo.
3. What's the lead time for regular order?
20-25 days for order quantity lower than 5000pc; For more quantity,
usually 30 days.
4. Can I get a discount?
Yes, for the order quantity more than 10 pcs, please contact us to
get the best price.
5. Do you inspect the finished products?
Yes, each step of production and finished products will be came out
inspection by QC department before shipping.