Lefoo Three Phase Adjustable Pressure Switch for Water Pumps and HVAC Systems

• Customization: Available
• Type: Mechanical
• Usage: Control Switch
• Model NO.: LF18
• Application: Home, Commercial, Industrial
• Explosion-proof Type: Non Explosion-proof
• Contact: Normally Open
• Brand: Lefoo
• Certification: CE
• Trademark: LEFOO
• Origin: Zhejiang, China

Product Description

Product Description

 

Unleash the power of precision with the LF18 pressure switch, your ultimate partner in regulating tank pressure for 3-phase electrically driven air compressors. This state-of-the-art device effortlessly maintains pressure between two preset values, ensuring optimal performance. Its innovative design includes an unloader valve to prevent compressors from starting under load, paired with a convenient On-Off knob for manual shutdown, offering you complete control and peace of mind.

 

 

Product Parameters

 

Model: LF18 Media: Air Operating Pressure Range: 1.0-5.0bar, 2.0-8.0bar, 3.0-11.0bar, 4.0-16.0bar Factory Setting: 2.0-4.0bar, 3.8-5.0bar, 5.6-7.0bar, 8.0-10.0bar Differential: 1.0-3.0bar, 1.0-3.0bar, 1.4-4.0bar, 1.8-4.5bar Electrical Rating: 400VAC-3 16A/25A Contact Arrangement: NC Connection: 1/4 or 1/2NPT, G1/4 or 1/2 Female Conversion: 1kgf/cm²=14.2psi, 1bar=14.5psi Other connections are available on request.

Number	Connection Type		Connection Size	Unloader Valve Type	Unloader Valve Connection	Handle Type
0	/	/	/	without	without	without
1	single port	B female	C G1/4	D vertical	Φ6.0mm	F ON/OFF Knob
2	/	/	G1/2	/	E Φ6.4mm	/
3	three ports	/	1/4NPT	/	Φ6.5mm	/
4	A four ports	/	1/2NPT	/	/	/
5	/	/	R1/4	/	/	/
6	/	/	R1/2	/	/	/

 

Model	Media	Operating Pressure Range	Factory Setting	Differential	Electrical Rating	Contact Arrangement	Connection
LF18	Air	1.0-5.0bar	2.0-4.0bar	1.0-3.0bar	400VAC-3 16A/25A	NC	1/4 or 1/2NPT, G1/4 or 1/2 Female
		2.0-8.0bar	3.8-5.0bar	1.0-3.0bar
		3.0-11.0bar	5.6-7.0bar	1.4-4.0bar
		4.0-16.0bar	8.0-10.0bar	1.8-4.5bar

 

Certifications

 

Zhejiang Lefoo Sensing Technology Co., Ltd. stands proudly certified by the esteemed TUV ISO 9001:2008, alongside a myriad of other specific product approvals, underscoring our commitment to the pinnacle of quality and industry standards.

 

Packaging & Shipping

 

Shipping fees and delivery dates are open for negotiation to ensure your utmost convenience. Engage with our suppliers now to tailor your shipping preferences and get detailed insights.

 

Our Advantages

 

HIGH-QUALITY With an impressive portfolio of over 120 certifications and patents, we guarantee unmatched excellence. HIGH STORAGE Our expansive production base spans over 50,000 square meters, supported by a robust workforce exceeding 1,000 members. CUSTOMIZED Tailor your experience with our flexible OEM and ODM support, customized to meet your specific needs.

After Sales Service

 

Experience hassle-free returns and refunds for orders that are missing or have product issues. Enjoy free local returns for defects on qualifying purchases, ensuring confidence and satisfaction every step of the way.

Company Profile

 

ABOUT LEFOO LEFOO CONTROLS expands over a vast area of 50,000 square meters, equipped with over 500 large-scale processing machines and 30 production lines. Our formidable team of more than 1,000 professionals drives our international success across North America, Europe, Asia, Australia, and South America, illustrating our capability to meet diverse and sophisticated technological demands, positioning us as a leader in global manufacturing.

 

 

FAQ

 

Q: What kind of products do you offer?
A: Zhejiang Lefoo Controls Co., Ltd. develops and manufactures reliable, high quality standard pressure sensors, pressure transmitters, differential pressure transmitters, pressure switches Pressure Control, temperature control Devices offering innovative solutions and components able to outfit at best machines and production systems and give a single answer to any requirements in pressure control systems.

Q: Are you manufacturer?
A: Yes, we are manufacturer with 3 factories.

Q: How can I get the quotation?
A: Send your inquiry to us by the inquiry form on the right-side or the bottom of this page.

Q: Could I get samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.

Q: Can you make customized products?
A: Yes, customized is accepted, please contact us for specific requirements.

Q: Can I be your distributor?
A: Please contact us directly for details. Looking forward to work with distributors all over the world.