Straight Union Push-In Fitting

Name: PU Straight Union Push-In Fitting
Brand: CR Pneumatic
SKU: PU

PU

Stainless steel push-in fitting for connecting two tubes of equal diameter.

This straight union is a stainless steel push-in fitting designed to join two tubes of the same diameter. It is used in pneumatic and fluid systems where a secure, releasable connection is required. Buyers include importers, distributors, and contractors specifying components for industrial equipment.

Key features

Stainless steel construction for corrosion resistance
Push-in connection for quick tube installation and removal
Suitable for tube sizes from 4 mm to 16 mm
Releasable collet mechanism
Straight union design for inline connections

Applications

Pneumatic systemsWater and fluid linesIndustrial machineryAutomotive workshopsProcess control equipment

Request a Quote

Ordering terms

PU

The numbers buyers ask for first. Tell us your quantity and destination and we will confirm in writing.

Minimum order: 100 pcs per model, mixed models accepted
Lead time: 15–25 days after deposit; stock items 3–5 days
Packaging: PE bag + inner box + export carton; neutral packing on request
OEM / ODM: OEM logo, custom thread and tube size, private label packaging
Payment: T/T 30% deposit, balance against copy B/L; L/C at sight over USD 30,000
Incoterms: EXW Ningbo by default; FOB / CIF / DAP quoted on request
Samples: Samples free, freight collect; sample cost refunded on the first order

Specifications

PU

General
Material	Stainless steel 304 as standard; 316 available on request

The straight union is a two-port push-in fitting with a straight body. It is made of stainless steel, offering corrosion resistance and durability. The fitting uses a push-in mechanism: the tube is inserted into the collet, which grips it and creates a seal. To release, a simple push on the collet collar frees the tube. This allows for quick assembly and disassembly without tools. Typical construction includes a stainless steel body, a collet with stainless steel teeth, and an O-ring seal. The fitting is used in pneumatic circuits, water lines, and other fluid systems where a reliable connection is needed. It is suitable for tube sizes from 4 mm to 16 mm. What to specify when requesting a quote: - Tube diameter (e.g., 4-4, 6-6, 8-8, 10-10, 12-12, 14-14, 16-16 mm) - Material: stainless steel (confirm grade if required) - Finish: as machined or passivated (state preference) - Quantity: number of pieces - Packaging: bulk, bagged, or custom - Any additional requirements: thread type, seal material, etc.

Illustration

Reference photo of this product type — not the exact item shipped.