How to distinguish the models of air pipe connectors
Mar 12, 2025| The models of air pipe connectors are mainly distinguished by multiple dimensions such as structure type, pipe outer diameter, thread specification and material. The specific rules are as follows:
Classification by structure type
Straight-through type: The model starts with "PC" (such as PC10-02), the number indicates the outer diameter of the pipe, and the suffix is the thread specification.
Right-angle type (elbow): The model starts with "PL" (such as PL06), and the number corresponds to the outer diameter of the pipe.
T-type (tee): The model starts with "PST" or "PT" (such as PT04), which is used for branch connection. Y-type: Such as PWT series, suitable for multi-directional diversion.
Classification by outer diameter of pipes
The outer diameter of pipes is indicated by two digits, for example:
04/06/08: corresponding to 4mm, 6mm, 8mm air pipes respectively;
10/12/16: corresponding to 10mm, 12mm, 16mm air pipes (such as "10" in PC10-02 indicates an outer diameter of 10mm).
Named by thread specifications
Inch thread: starting with "G", such as G1/8 (commonly known as 1 point, outer diameter of about 10mm), G1/4 (2 points, about 12mm), etc.;
Metric thread: such as M5, M10X1, etc., directly mark the thread parameters;
The model suffix indicates the thread (such as "02" in PC10-02 corresponds to G1/4 thread).
Materials and application scenarios
Plastic material: low cost, pressure resistance of about 1 MPa, suitable for low-pressure scenarios (such as PC series);
Metal material: resistant to high pressure and high temperature, used in harsh industrial environments (such as stainless steel connectors).
Derived models
Flame retardant type: such as PAN-VO, suitable for fire protection requirements; Mini/metal type: suitable for special installation space or high strength requirements; Packaging specifications: such as QS-B type is mostly used for bulk purchases.