Cnpnji Plastic Pressure Relief Valve PTFE Membrane IP68 Screw Waterproof Breather Air Vent Plug Cable Gland

Product Description

Nylon Air Vent Plug

Product Description

Expertly engineered to resolve pressure differentials in sealed enclosures. Crafted from high-quality nylon for robust durability and corrosion resistance, it utilizes a unique one-way membrane to efficiently release built-up gases and moisture while reliably blocking out external dust and water, ensuring a dry and clean interior. This essential component is ideal for enhancing the reliability and longevity of various precision equipment, including outdoor
telecommunication boxes, medical devices, security lighting, and automotive lamps.

Company Strengths

1. Core Manufacturing Capabilities: We specialize in manufacturing waterproof junction boxes, cable glands, PV combiner boxes, flexible plastic piping products, nylon cable ties, and related wiring accessories. Equipped with advanced production machinery and a strong technical team.

2. Experience & Product Applications: With years of experience in China, our products are widely used in power transmission, automotive cabling, mechanical engineering, industrial equipment, and installation projects.

3. Authoritative Certifications: We have obtained ISO9001:2000 certification. Most of our products, especially cable glands, are certified with IP68, CE, CCC, UL, REACH, TUV, and RoHS standards.

4. Global Sales Network: We have established a comprehensive sales network covering both domestic and international markets. Domestically, it collaborates with companies such as GREE, Midea, Samsung, Chint, and BYD. Internationally, it has established long - term and stable cooperative relationships with customers in countries and regions like Japan, South America, and Europe. 

Product Description

IP68 Waterproof Rating

Strong Hardness,Sturdy and Durable

International Safety Approvals:Products commonly pass international authoritative certifications such as UL, RoHS, and REACH, ensuring compliance with safety and environmental requirements of major markets including Europe and North America.

Made of high-quality PA66 engineering plastic, offering excellent hardness, impact resistance, and wear resistance. Maintains its shape under long-term use and performs reliably even in harsh environments.

Heavy Protection and Worry Free Safety

Product Protection Effect Diagram

Once installed, the Waterproof breathable Valve blocks external  impurities while allowing air to flow freely, maintaining balanced pressure between the chamber' s inyrtior and exterior.

After installation, the waterproof breathable valve blocks external impurities while allowing air to flow freely,ensuring balanced pressure inside and outside the chamber.

Custom Molding Process

Customization Supported

Offer various customization options, including mold customization, logo customization, color customization, and more.

Certifications

Specification

Nylon Air Vent Plug	Main Component	Cap	PA66
		Body	PA66/PC
		Nut	PA66
	Sealing Element	Insert	NBR ROHS3.0
		Washer	NBR ROHS3.0
	Permeable Membrane	e-PTFE
	Gland Temperature	-40ºC ~ 100ºC , short time to 125ºC
	Protection Degree	IP68
	Colour	Black, white, and gray, other colours can be customized

Thread Size	Main Material	Thread O.D	Thread Length	Spanner Size	Pressure range	Air permeability (>2M, 8hrs)
M5*0.8	PA/PC	5	8		P=7Kpa	1200ml/min
M6*0.75	PA/PC	6	8	10	P=7Kpa	1200ml/min
M8*1.25	PA/PC	8	10	16	P=7Kpa	2200ml/min
M10*1.5	PA/PC	10	10	16	P=7Kpa	3600ml/min
M12*1.5	PA/PC	12	10	16	P=7Kpa	3600ml/min
M16*1.5	PA/PC	16	10	22	P=7Kpa	3600ml/min
M24*1.5	PA/PC	24	15	36	P=7Kpa	7000ml/min

Product Application

Packaging & Shipping

Company Profile

ZHEJIANG MINGGUAN ELECTRIC CO., LTD.

ZHEJIANG MINGGUAN ELECTRIC CO., LTD. was established in 2006 and is located in the New Energy Industrial Zone, Wenzhou City, Zhejiang Province. The factory covers an area of more than 8,000 square meters and is a professional wiring equipment company integrating R&D,  design, manufacturing,  sales and service.

ZHEJIANG MINGGUAN ELECTRIC CO., LTD.

         We specialize in manufacturing waterproof junction boxes, cable glands, PV combiner boxes, flexible plastic piping products, nylon cable ties, and more. Equipped with advanced production machinery and strong technical expertise, we have obtained ISO9001:2000 certification. Most of our products, such as cable glands, are also certified with IP68, UL, CE, CCC, CQC,  REACH, TUV, and RoHS.Our products are widely used in power transmission, automotive cables, mechanical and machine equipment, engineering, and installation. Recently, we have established a complete domestic sales network and built strong cooperative relationships with customers from Japan, South America, Europe, and other countries. We believe that quality is an everlasting theme. Entrepreneurial spirit and keeping pace with the times define us, while continuous innovation is our core philosophy. We sincerely look forward to creating a better future with friends from around the world!

Full-range in-house testing

Our company has a professional laboratory with waterproof, insulation, impact, salt - spray andother testing equipment, inspecting from raw materials to finished products to ensure product quality.

Comprehensive in-house production equipment

Our company is equipped with a professional and complete production equipment system for socket boxes, including injection molding machines, extrusion molding machines, CNC lathes, CNC engraving and miling machines, electric discharge machining machines, wire-cutting ma-chines, automatic tapping machines, presses, grinders, perforating machines, crushers, andmixers.

FAQ

Q1: What certifications do your products have? Can they be exported to Europe and America?

A1: Our products hold IP68, CE, CCC, UL, REACH, TUV, RoHS and other international certifications. They comply with global standards and are safe for export to Europe, America, Southeast Asia, the Middle East, and more.

Q2: Are you a factory or a trading company? Do you support customization?

A2: We are an integrated manufacturer and trader with our own R&D and mold teams. OEM/ODM customization (size, material, logo, etc.) is supported. Drawings or samples are welcome.

Q3: How do I select the right cable gland and waterproof junction box?

A3: Focus on three parameters: thread type (M/PG/G/NPT), cable diameter, and ingress protection rating (e.g., IP68). Just tell us your mounting hole size and cable diameter, and we will help you select the right model.

Q4: What is your lead time? What logistics options do you offer?

A4: Standard products are in stock. Lead time for customized items depends on the process. We support sea freight, air freight, courier, and trade terms such as FOB/CIF, along with multiple payment methods.

Q5: Can you provide samples? How do you ensure quality for mass production?

A5: Yes, samples are available for testing. We have a strict quality control system from raw material to finished products, backed by long-term cooperation with global customers. Factory audits by you or a third-party inspection are welcome.