Why choose us

Customized Solutions

We offer tailored hydraulic fittings and hoses designed to meet specific customer requirements. Our team works closely with clients to provide bespoke solutions that fit their unique applications and operational needs.

Our Certificate

Yijia Machinery has passed IATF 16949:2016 system certification,ISO 9001 & ISO 14001 system certification,DOT, AMECA product certification.

Rigorous Quality Control

We implement stringent quality control measures at every stage of production. Our adherence to ISO, BV, and TVU standards guarantees that each product meets the highest benchmarks for performance and safety.

 

Dedicated Customer Service

Our customer service team is committed to providing exceptional support and addressing any concerns promptly. We prioritize clear communication and proactive problem-solving to ensure a seamless experience for every client.

 

Parts#

Tube O.D

A

B

Alkon

2692-M4

4 mm

38.4

9.7

MAQ62- DOT-4

2692-M6

6 mm

40.1

11.9

MAQ62- DOT-6

2692-M8

8 mm

40.1

14.2

MAQ62- DOT-8

2692-M9

9 mm

 

 

 

2692-M10

10mm

40.1

17.3

MAQ62- DOT-10

2692-M11

11 mm

 

 

 

2692-M12

12mm

40.1

19.8

MAQ62- DOT-12

2692-M15

15 mm

 

 

 

2692-M16

16 mm

 

 

 

 

DOT Union Connector

 

Product Features

Quick Plug Connection , Simply plug the air hose directly into it, quick installation, no extra tools required, reduce maintenance time.


High sealing performance with high strength NBR or FKM O-rings to ensure long term air tightness without risk of leakage.


High pressure resistant design, can withstand high working pressure, suitable for air brake system.


High and Low Temperature Resistant -40°C to +100°C, suitable for a wide range of severe working conditions.


Strong corrosion resistance, brass body, oil and chemical resistant, prolong service life.


High tensile strength , with stainless steel jaws design, it can firmly fix the air tube and prevent it from loosening.


Comply with DOT & SAE standards, passed DOT FMVSS 571.106 & SAE J1131 certificates to meet the international market demand.


Suitable for a wide range of pipe materials, such as nylon (PA11/PA12), polyurethane (PU), composite pipes, etc. to enhance system compatibility.

 

Properly install

Step 1

Using a special pipe cutting tool, make sure the pipe ports are flat and free of burrs.

Step 2

Insert the pipe directly into the Tee until it clicks.

Step 3

Gently pull on the pipe to make sure it is securely fastened and will not come loose.
If disassembly is required, press the release ring and pull the pipe out easily without additional tools.

 

Before Sale

After Sale

1

Sample Confirmation

1

Comprehensive service with separate after-sale team

2

Providing information consulting and technical guidance.

2

Satisfied solution while any problem identified.

3

Packaging can be customized.

3

Exclusive and unique solution provided by professional engineers.

4

Reply to your enquiry in 24 working hours.

4

New craft, new technology and other related advisory services.

 

 

Packaging & Shipping

 

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Our factory

 

Yijia Hydraulic Machinery adopts full CNC machining, with a workshop area of 3600 square meters, equipped with 100 sets of full machine tools, 60 sets of semi-automatic CNC machines, and 5 sets of inspection equipment.We have an annual production capacity of 3 million sets of brass fittings and air brake hose assemblies.

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FAQ

 

Q: How do I make sure the piping is in place?

A: Make sure the pipe ports are smooth, hear a 'click' when inserting the fitting, and pull to check the fixing.

Q: Do I need an additional seal?

A: No. The product has an O-ring seal, so no additional sealing is required. The product is sealed with an O-ring and no additional sealant or tape is required.

Q: How do I choose the right size?

A: The DOT Union Connector is matched to the outside diameter of the pipe, e.g. 10mm for 10mm pipe.

Q: Can it be used in liquid systems?

A: No, the DOT Union Connector is designed for use in pneumatic systems, not hydraulic or water systems.

Q: Can I buy samples placing orders?

A: Yes.Please feel free to contact us.

Q: What is your lead time?

A: It depends on the order quantity and the season you place the order. Usually we can ship within 7-15 days for small quantity,and about 30 days for large quantity.

Q: What is your payment term?

A: T/T,Western Union,Alipay,MoneyGram,and Paypal.This is negotiable.

Q: What is the shipping method?

A: It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).Please confirm with us before placing orders.

As one of the most professional metric air brake brass push-in fittings manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized metric air brake brass push-in fittings from our factory. Contact us for free sample.DOT Male Connector Metric Tube NPTF Thread, Brass male adapter for metric tube, DOT Union Connector

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