Home > Product > Ferrule Fittings > Blog & Articles > Comparing Swagelok®, Parker®, and Generic Ferrule Fittings
When it comes to choosing ferrule fittings for critical fluid or gas systems, quality, compatibility, and performance are non-negotiable. Global brands like Swagelok® and Parker® A-LOK® are often the gold standard—but are they the only reliable options?
In this guide, Perfect Engineers compares the top ferrule fitting brands—Swagelok®, Parker®, and generic manufacturers—with our in-house solution: PE-LOCK, designed for 100% compatibility, performance, and value.
Ferrule fittings are used in high-pressure, leak-critical, and vibration-sensitive applications. Choosing the wrong brand—or mixing incompatible components—can result in:
| Feature | Swagelok® | Parker® A-LOK® | Generic Brands | PE-LOCK (Perfect Engineers) |
|---|---|---|---|---|
| Design Type | Double Ferrule | Double Ferrule | Varies | Double Ferrule |
| Material Range | SS316L, Alloy, etc. | SS316L, Brass, etc. | Often limited | SS316L, Monel, Inconel, Hastelloy, Titanium |
| Pressure Rating | Up to 10,000 PSI | Up to 6,000 PSI | Inconsistent | Up to 10,000 PSI |
| Dimensional Compatibility | — | With Swagelok® | Often off-tolerance | ✅ Fully interchangeable with both |
| Certification Support | Yes | Yes | Often missing | ✅ ISO, EN 10204 3.1, IBR, NACE, RoHS |
| Customization (Threads, Alloys) | Limited | Limited | Rare | ✅ Available on request |
| Global Recognition | ✅ Very High | ✅ High | ❌ Low | ✅ Growing in 30+ countries |
| Cost Efficiency | ❌ High Cost | ❌ High Cost | ✅ Low (but risky) | ✅ 25–40% lower than MNCs |
| After-Sales Support | Excellent | Good | Poor | Excellent (B2B focused) |
All three brands use a double ferrule design, which separates the sealing and gripping functions:
| Use Case | Can You Mix Brands? |
|---|---|
| Swagelok® nut + Parker® ferrule | ❌ Not recommended (different geometry) |
| Parker® ferrule in generic body | ❌ Risk of leakage due to tolerances |
| Swagelok® tube with PE-LOCK body | ✅ Yes, 100% interchangeable |
| PE-LOCK ferrule with Swagelok® nut | ✅ Yes, tested and validated |
Pro Tip: Stick to one brand per assembly. If switching, always match body + ferrules from the same source.
| Media Type | Swagelok® / Parker® | Generic | PE-LOCK |
|---|---|---|---|
| Steam / Hot Water | Yes (SS316L) | Not all rated | ✅ Yes (SS316L / SS321) |
| Seawater / Chloride | Yes (Monel) | Often unavailable | ✅ Yes (Monel / Duplex / Titanium) |
| High-Temp Gases | Yes (Inconel) | Rare | ✅ Yes (Inconel 625 / 718) |
| Corrosive Acids | Yes (Hastelloy) | Risky | ✅ Yes (Hastelloy C276 / Alloy 20) |
| Oxygen / Cleanroom Use | Yes (Cleaned SS) | Unreliable | ✅ Yes (O₂ Cleaned & EP SS316L) |
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| Brand | Avg. Global Price Range (SS316L 1/2” Union) | Availability | Customization | Bulk EPC Pricing |
|---|---|---|---|---|
| Swagelok® | ₹750–₹1,200 (USD $9–14) | Limited (MTO) | No | ❌ |
| Parker® | ₹600–₹1,000 (USD $7–12) | Moderate | Limited | ❌ |
| Generic | ₹150–₹350 (USD $2–4) | High | Risky quality | ❌ |
| PE-LOCK | ₹350–₹750 (USD $4–9) | ✅ Fast | ✅ Yes | ✅ Yes |
Due to brand markup, global logistics, and heavy certification. PE-LOCK offers equal performance at a better value.
Yes. We supply MTCs, IBR, Hydro Test, Helium Leak Test, and FDA/USP class VI compliance on request.
Yes. Contact us for free evaluation kits for labs, OEMs, or EPCs.
Yes. Contact our technical team for a cross-reference sheet and support for smooth migration.
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