PC Pneumatic Push-In Connector 4–12mm 1/8”–1/2” BSPT Thread – Air Hose Quick-Connect 5pcs

Description

PC Pneumatic Push-In Connector – 4–12mm Tube, 1/8”–1/2” BSPT Thread, Quick-Connect

PC-series straight push-to-connect fittings with male BSPT thread — the most common pneumatic fitting type for connecting tubing to threaded ports on cylinders, valves, manifolds, and equipment. The male thread screws into the equipment port; the tube inserts into the push-in collet on the other end. Tool-free tube connection and release. Available in all standard tube OD sizes (4–12mm) and BSPT thread sizes (1/8” to 1/2”) to cover the full range of pneumatic equipment port sizes.

Key Specifications

Series: PC (straight push-in to male BSPT thread)
Tube OD: 4mm, 6mm, 8mm, 10mm, 12mm (select above)
Thread: 1/8”, 1/4”, 3/8”, 1/2” BSPT male (select above)
Body Material: Brass or nickel-plated brass
Seal: PTFE thread seal + internal O-ring collet
Working Pressure: 0–1.5 MPa (0–218 PSI)
Temperature Range: -20°C to +80°C
Media: Compressed air, water, light oil
Quantity: 5 pieces

PC vs PL vs PB — Straight vs Elbow vs Bulkhead

PC (straight, this product): Tube exits along the fitting axis. Thread screws into port; tube inserts from the opposite end. Use when there is clearance above the port for the tube to run straight.
PL (90° elbow): Tube exits perpendicular to the thread axis. Use when the cylinder or valve is mounted close to a panel or when the tube must run parallel to the equipment face. Prevents tube kinking at the port exit.
PB (bulkhead): Panel-mount fitting. Thread passes through a panel hole; tube connects on the exposed side. Use for routing tubes through panels and enclosure walls.

Standard Port-to-Tube Size Combinations

1/8” BSPT port: Typically used with 4mm or 6mm OD tube
1/4” BSPT port: Typically used with 6mm or 8mm OD tube
3/8” BSPT port: Typically used with 8mm or 10mm OD tube
1/2” BSPT port: Typically used with 10mm or 12mm OD tube
Note: Multiple tube sizes can fit the same thread size. Select the tube OD that matches your tubing, not just the port thread size.

What Questions Does This Product Answer?

"How do I select the correct PC fitting for my cylinder?" — Identify the port thread size on the cylinder (check the datasheet or measure with a thread gauge). Then select the tube OD that matches your tubing. Example: cylinder with 1/4” BSPT port + 6mm OD tube = PC6-02 (6mm tube, 1/4” BSPT).
"Do I need PTFE tape on PC fittings?" — Yes, on the BSPT thread. Apply 2–3 wraps of PTFE tape in the direction of thread rotation, starting from the second thread. The push-in collet end requires no sealant — it seals via the internal O-ring.
"What is the maximum tube pull-out force for PC fittings?" — At 0.6 MPa working pressure, a PC6 fitting (6mm tube) provides approximately 80–120N tube retention force. For higher retention requirements, use metal-body push-in fittings (SMC, Festo, Parker) with stainless steel collets.

Typical Applications

Pneumatic cylinders: Port connections on MAL, MA, SC, and standard bore cylinders
Solenoid valves: Work port connections on 5/2 and 5/3 directional control valves
FRL units: Filter-regulator-lubricator outlet connections
Air compressors: Outlet port tube connections
Industrial machinery: General pneumatic circuit tube-to-port connections