Home > Product > Ferrule Fittings > Single Ferrule Fittings > PE-LOCK Union
Perfect Engineers, a trusted name in fluid and gas handling components, presents the PE-LOCK Union — a single ferrule tube fitting designed to connect two sections of tubing in a secure, leak-proof, and vibration-resistant manner. Manufactured with precision under our proprietary PE-LOCK brand, these unions are ideal for applications demanding accuracy, consistency, and long service life.
Whether you’re working with instrumentation lines, chemical plants, hydraulic circuits, or gas delivery systems, our PE-LOCK Unions ensure a tight seal, easy assembly, and reusability — without the need for welding or threading.
A tube union is a straight tube-to-tube connector that joins two tubes of equal or unequal sizes in a straight line. In a single ferrule design, the union comprises:
As both nuts are tightened, the ferrules compress against the tubing, forming a solid mechanical and pressure-tight seal. The PE-LOCK Union enables quick installation, modular assembly, and field disconnection, making it a preferred choice in instrumentation and process setups.
| Specification | Details |
|---|---|
| Brand | PE-LOCK by Perfect Engineers |
| Product Name | Tube Union – Single Ferrule Tube Fitting |
| Connection Type | Tube OD × Tube OD |
| Available Sizes | 1/8″ to 2″ (or 3 mm to 50 mm) |
| Pressure Rating | Up to 6000 PSI (material and size dependent) |
| Material Options | SS316, SS304, Brass, Monel, Inconel, Hastelloy |
| Temperature Range | -196°C to +400°C |
| Finish Options | Natural / Electro-Polished / Nickel-Plated |
| Applicable Standards | ISO 8434, DIN 2353, ASTM F1387, ASME B31.3 |
| Country of Origin | India (Manufactured at Perfect Engineers – Mumbai facility) |
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PE-LOCK Tube Unions are widely used in industries such as:
Yes. Our unions are leak-tested and rated for use in high-pressure gas and liquid applications
Yes. We provide both equal and reducing unions depending on your sizing requirements.
Our unions work with stainless steel, copper, plastic, and alloy tubing. Consult us for specific compatibility.
Yes. Properly disassembled unions can be reused multiple times without affecting sealing performance.
Yes. Nickel-plating and electro-polished finishes are available on request.
Each union is pressure tested, leak tested, and verified for dimensional accuracy before dispatch.
Absolutely. These are available based on your corrosion-resistance or chemical compatibility needs.
Yes. We provide 3.1 Material Certificates, Hydro Test Reports, and Compliance Docs.
We support air and sea freight. Urgent dispatches can be arranged via DHL/FedEx/UPS with tracking.
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