Stainless Steel Rapid Pneumatic Fittings Bulkhead Union
VBU
SUS304 Rapid Screw Fitting, Stud Coupling, Rapid Fitting for Plastic Tubing
Rapid Pneumatic Fittings Bulkhead Unions are widely used in liquid and gas tubing. It is suitable for advanced tech sectors, chemical industries as well as special environment of closure such as semiconductor equipment, medical instrument, and food process and so on.
Rapid Pneumatic Fittings Bulkhead Unions presents straight shape. Bulkhead Unions are designed to allow fitting body through a hole of equipment and object; the use of locknuts thread onto the body to hold it in place. Two ends apply flange design to make soft tube connection. It is used as the diversion port in pipelines.
The bodies are constructed of 316 or 304 stainless steel. Nuts are made of 303 stainless steel. CHIBIN bodies and nuts are precision machined to prevent tube falling off or broken. The soft tube can avoid to be cut for installation or replacement. The maximum pressure rapid pneumatic series can withstand is subject to thermoplastic tubes.
Features
- Durable and easy replacement.
- Precision machined bodies and nuts to prevent soft tube falling off or broken.
- The flange design isn’t necessary to apply seals and it won’t have leakage after inserting the tube.
- Material: SUS304, SUS316, Corrosive resistance
Technical Data
Working Pressure: 20 kgf/cm² *
Working Temperature: -20°C ~ 80°C *
Suitable OD: 1/4" ~ 1/2" ; 4 ~ 16 mm
Thread: PT, NPT, M
The suitability of fittings depends on the plastic tube type and outside diameter.
Application
- Suitable for Component Assembly of Instrumentation, Food, Chemical, Petrochemical Industries, Water Treatment, Medical Equipment and Agriculture Machines.
- * Suitable for food and medical equipment.
Dimension

Specification
Tube Outside Diameter (O.D.)CodeSize mm/inch” | 4 mm | 6 mm | 8 mm | 10 mm | 12 mm | 16 mm | 1/4” | 3/8” | 1/2” |
---|---|---|---|---|---|---|---|---|---|
CODE | 04 M | 06 M | 08 M | 10 M | 12 M | 16 M | 20 I | 30 I | 40 I |
SUGGESTED TUBE SIZE ID x OD | 2.5 x 4 | 4 x 6 | 5 x 8 | 6.5 x 10 | 8 x 12 | 12 x 16 | 4.57 x 6.35 | 6.99 x 9.53 | 9.56 x 12.7 |
Part No | Tube OD | Panel Hole Size | Dimensions | H | ![]() | |||
---|---|---|---|---|---|---|---|---|
Ø | Ø T | Ø E | L | I | K | |||
VBU04M | 4 | 8.3 | 1.5 | 42 | 25 | 4 | 11 | 12 |
VBU06M | 6 | 11.5 | 3 | 44 | 24.5 | 4 | 14 | 16 |
VBU08M | 8 | 11.5 | 4 | 44 | 24.5 | 4 | 14 | 16 |
VBU10M | 10 | 13.2 | 5.5 | 50 | 28.5 | 5 | 17 | 17 |
VBU12M | 12 | 16.3 | 7 | 50 | 27.5 | 6 | 19 | 19 |
Part No | Tube OD | Panel Hole Size | Dimensions | H | ![]() | |||
---|---|---|---|---|---|---|---|---|
Ø | Ø T | Ø E | L | I | K | |||
VBU20I | 1/4" | 11.5 | 3 | 44 | 24.5 | 4 | 14 | 16 |
VBU30I | 3/8" | 13.2 | 5.5 | 50 | 28.5 | 5 | 17 | 17 |
VBU40I | 1/2" | 16.3 | 7 | 50 | 27.5 | 6 | 19 | 19 |
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Stainless Steel Rapid Pneumatic Fittings Bulkhead Union - SUS304 Rapid Screw Fitting, Stud Coupling, Rapid Fitting for Plastic Tubing | Over 40 Years Tube/Pipe Fittings for Medical & Semiconductor Industry Manufacturer | CHIBIN Machine Co., Ltd.
Based in Taiwan since 1980, CHIBIN Machine Co., Ltd. has been a stainless steel pipe fittings manufacturer. Their main pipe and tube fitting products, include Stainless Steel Rapid Pneumatic Fittings Bulkhead Union, tube fittings, compression fittings, rapid pneumatic fittings, push-in pneumatic fittings, hydraulic fittings, high pressure pipe fittings, quick couplings, nozzle and needle valves, which are specialized in medical and semiconductor sectors.
We have fourteen categories of standard products which have been highly recommended by the customers. Especially tube fittings, quick couplings and push-in pneumatic fittings are with international competitiveness and many foreign buyers continuously place orders. Pipe Fittings that are ISO certified and TTQS awarded. Internal standards using random inspection based on the U.S. military MIL-STD-105E specifications. More than 10,000pcs of standard products are in ready stock. Custom products are up to 3,000pcs. CHIBIN Machine provides one-stop service in developing, designing, manufacturing, and assembling, as well as custom solutions to achieve high standards from worldwide clients.
CHIBIN Machine has been offering customers high-quality pipe and tube fittings since 1980, both with advanced technology and 43 years of experience, CHIBIN Machine sures each customer's demands are met.