Original/New Sor 12nn vacuum and Pressure Switch for Process Applications

• Customization: Available
• Type: Electromechanical Pressure Switch
• Number of Switch: Double Control Switch
• Model NO.: 12NN-N66-N4-B1A
• Structure: Power Built-in Type
• Usage: Control Switch, Playback Switch, Disconnector, Change-over Switch
• Application: Industrial
• Explosion-proof Type: Flameproof
• Contact: Normally Open
• Contact Type: Type c Contact
• Detection Method: Retro-reflective Mode
• Brand: Sor
• Certification: CE, CCC
• Warranty: 1 Year
• Source Area: USA
• Switch Type: Mechanical Pressure/Vacuum Switch
• Function: Spdt
• Pressure Range: Adjustable
• Set Point Accuracy: ±1% of Full Scale
• Deadband: ≤10% of Set Point
• Electrical: 5A @ 120V AC / 0.5A @ 125V DC
• Contacts: Spdt Snap-Action
• Process Connection: 1/4" NPT Female
• Housing Material: NEMA 4X Aluminum
• Wetted Parts: 316 Ss
• Operating Temperature: -40°f to +165°f
• Proof Pressure: 2X Full Scale
• Safety: UL Listed, CSA Certified
• Transport Package: with Carton Package
• Specification: 30X20X20 cm
• Trademark: SOR
• Origin: USA
• HS Code: 9026201090
• Production Capacity: 2000
• Package Size: 30.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 3.500kg

Product Description

 

Product Description

The SOR 12NN - N66 - N4 - B1A is a highly reliable pressure and vacuum switch designed to meet the diverse needs of process applications. Engineered by SOR, a renowned name in the field of instrumentation, this switch offers a combination of durability, accuracy, and flexibility. It is a weather - tight device, making it suitable for use in various environmental conditions, both indoors and outdoors.

 

Product name	SOR 12NN Vaccum and Pressure Switch
Brand	SOR
Model	12NN - N66 - N4 - B1A
Output signal	2-20MA
Company website	Kerui (Weifang) Automation Equipment Co., Ltd.

 

 

1. Operating Principle
   At the core of the SOR 12NN - N66 - N4 - B1A is a force - balanced, piston - actuated assembly. The sensing element is sealed by a flexible diaphragm and a static O - ring. When pressure or vacuum is applied to the switch, the diaphragm deflects. This deflection causes the piston to move, which in turn activates the switch mechanism. The movement of the piston is translated into an electrical signal, indicating a change in pressure or vacuum level. This simple yet effective operating principle ensures reliable performance over a long service life.

   • • 
        

 

Product Overview

The SOR 12NN - N66 - N4 - B1A is a highly reliable pressure and vacuum switch designed to meet the diverse needs of process applications. Engineered by SOR, a renowned name in the field of instrumentation, this switch offers a combination of durability, accuracy, and flexibility. It is a weather - tight device, making it suitable for use in various environmental conditions, both indoors and outdoors.
The switch is also capable of operating in vacuum conditions. It can measure vacuums down to 30 in hg vac (inches of mercury vacuum), which is useful in applications such as vacuum pumps, distillation processes, and some laboratory equipment where precise vacuum control is necessary.

 

Installation and Maintenance

The switch can be easily mounted in a variety of positions, depending on the application requirements. It typically comes with mounting brackets or holes that allow for secure attachment to a flat surface, such as a wall or a machine frame. When installing, it is important to ensure that the switch is installed in a location where it can accurately sense the pressure or vacuum of the process media. It should be installed in a way that avoids vibration and excessive mechanical stress, as these factors can affect its performance.

The pressure connection is a nickel - plated brass 1/4" NPT (female), which provides a secure and leak - free connection. The wetted materials, such as the brass bellows in models 126, are carefully selected to withstand a variety of media, making it suitable for use in different industrial environments. The die - cast aluminum enclosure, which is epoxy - powder coated and gasketed with captive cover screws, is designed to meet enclosure type 4x requirements. This means it offers protection against dust, water, and corrosion, making it suitable for both indoor and outdoor installations.

Product Parameters

Model	12NN-N66-N4-B1A
Type	Mechanical Pressure/Vacuum Switch
Function	SPDT (Single Pole Double Throw)
Pressure Range	Adjustable (e.g., 0.5-100 psi / -30 inHg to 100 psi)
Set Point Accuracy	±1% of full scale
Deadband	≤10% of set point (adjustable)
Electrical	15A @ 120V AC / 0.5A @ 125V DC
Contacts	SPDT Snap-Action (Silver Alloy)
Process Connection	1/4" NPT Female (standard)
Housing Material	NEMA 4X Aluminum
Wetted Parts	316 SS (standard), Monel optional
Operating Temperature	-40°F to +165°F (-40°C to +74°C)
Proof Pressure	2x full scale
Safety	UL Listed, CSA Certified
Hazardous Area	Class I Div 2 (optional)
Adjustment	Field-adjustable set point
Seal Options	Elastomer or Metal (for high temp)
Applications	Pumps, compressors, HVAC, industrial process control

  

Company Profile

 

KeRui (weifang) Automation Equipment Co., Ltd.specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies. The main products are flow meters, level meters, temperature meters,pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC)DCS distributed control systems,and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco,textile, dyeing, and other felds.

 

Company Introduction

Welcome to KeRui (Weifang) Automation Equipment Co., Ltd., your esteemed partner in pioneering industrial automation solutions. With a steadfast commitment to excellence, we specialize in the development, production, and distribution of cutting-edge industrial automation instruments. Our extensive portfolio caters to a diverse array of industries, delivering unparalleled precision and reliability.
At KeRui (Weifang), we take pride in offering a comprehensive range of products and bespoke technical services tailored to exceed the unique demands of our esteemed clientele. From state-of-the-art flow instruments to precise liquid level gauges, advanced temperature sensors, and robust pressure measurement devices, our offerings epitomize innovation and technological superiority.
Our expertise extends to electrical instruments, thermal intelligent systems, and sophisticated programmable logic controllers (PLC) alongside DCS distributed control systems, setting benchmarks in efficiency and performance across various sectors. Industries ranging from electric power and metallurgy to petrochemicals, environmental protection, plastics, food processing, and textiles benefit from our advanced solutions.
In fostering strategic alliances with esteemed brands such as Rosemount, Honeywell, Yokogawa, and Siemens, we ensure the delivery of premium-grade products and pioneering solutions that uphold the highest industry standards.
Thank you for choosing KeRui (Weifang) Automation Equipment Co., Ltd. We eagerly anticipate the opportunity to elevate your operations with our unrivaled solutions and unwavering dedication to excellence.
 

 

 

Packaging & Shipping

FAQ

Q1: How long will it take you to give me the reply?
A: We will reply to you as soon as we see the information
Q2: What is the delivery time?
A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you
Q3: How about your package?
A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.
Q4: How about the payment terms?
A: You can choose T/T.
Q5: Do you provide samples?
A: Yes, we have materials in stock to help you get the samples as soon as we can.
Q6: What is the MOQ?
A:1PC.
Q7: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with larger orders.

Q8: Why choose us?
We have a perfect customization, not only to provide you with quality products, but also to have a professional customer service team available at any time to provide you with support. We pay more attention to establishing a long-term cooperative relationship with you to achieve continuous business growth.

Q9: How can we guarantee quality?
We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them.