
Hydraulic Fittings That Show Up, Lock Tight, and Don’t Quit
We’re the ISO 9001 factory that machines your JIC, ORFS, and NPT fittings. For North American B2B buyers who are done with middlemen and ready to partner with the source. Welcome to Delphi Fittings™.
Browse Hydraulic Fittings Get Wholesale PricingWhy Smart Buyers Work Directly With Us
Our Parts Don't Fail
Anyone can talk about 'quality' - we control it. We run our own zinc-plating line. We pressure-test our fittings. We control the process from raw bar stock to the shipping crate. That's not a slogan; it's how we guarantee your fittings hold up.
You're Buying from the Factory Floor
We don't have a trading desk. We have a team of engineers. When you get a quote from us, you're paying for steel, machining, and QC - not for layers of agents. This is how smart OEMs and distributors protect their margins.
Inventory That Ships. Now.
Downtime is your enemy, and a back-ordered part is a killer. Our shelves hold over $2 million in ready-to-ship inventory across 3,000+ part numbers. Your order doesn't wait for a container - it's waiting for a label.
Got a Blueprint? We'll Machine It.
We are a manufacturing partner, not just an order-taker. Our engineers work with OEMs every day to turn custom drawings into precision-forged reality. When the part you need doesn't exist in a catalog, talk to us.
Logistics Without the Headache
Tired of supply chain excuses? We ship from our factory near Ningbo port to your dock. We know the paperwork, the incoterms, and the carriers. You get real updates and parts that show up on time. Period.
We Aren't a Reseller. We're a 290,000 sq ft. Manufacturing Plant.
Since 1998, we've been machining steel under our legal name, Yuhuan Dongfei Machinery Co., Ltd. As Delphi Fittings, we offer that same factory floor direct to our North American partners. Trust isn't built with marketing slogans; it's earned with calipers, spectrometers, and an in-house plating line. When you work with us, you're not dealing with a sales office. You're dealing with the ISO 9001 certified institution that machines, plates, tests, and ships your components. We built our operation for one reason: to give serious buyers a supply chain they can finally depend on.
About the Name: Why "Delphi"?
Yeah, we know, it’s a nerdy name. But there's a good reason for it. Back in ancient Greece, when kings and generals had a high-stakes decision to make, they went to the Oracle at Delphi. Why? Because they needed a clear, unambiguous answer. They couldn't afford to guess.
An engineer with a blueprint is in the same boat. You can't guess if a fitting will hold 6,000 PSI. You can't hope the threads are right. You need to know. We chose the name Delphi because our job is to provide that certainty. Every fitting we machine is an answer - a clear, reliable component that meets the standard and does its job, every time. No ambiguity. No guesswork. Just the right answer, forged in steel.
Explore Our Featured Hydraulic Fitting Categories
We offer a comprehensive selection of hydraulic fittings and adapters readily available for sale. Browse some of our most popular categories:

The Factory Floor: The Source of Your Competitive Edge
Factories don’t usually make people say “damn” - but ours tends to. Walk through the floor and you’ll see over 400 machines cutting steel like clockwork. Bar stock goes in one end, finished parts come out the other - same dimensions, every time. It’s not fancy. It’s precise. That’s the difference between a supplier that delivers once, and one that delivers for years.
We don’t chase capacity. We built it. With over 160 CNCs running 24/7 and a plating plant in-house, we control the outcome, not the excuses. You don’t get batch variation. You don’t get surprise delays. You get fittings that match spec, thread clean, and seal the first time - or we don’t ship them. Simple as that.
Plating? Ours happens 50 feet from where the parts are made. No trucks. No outsourcing. No guessing. That’s why when customers crack open a box from Delphi, they know what they’re holding: parts that hold pressure, hold up under salt spray, and hold your name on the line.
Factory Know-How: Guides That Actually Help
Not sure which fitting to spec? These no-BS guides cut through the noise. Real-world answers to real-world problems – from thread ID to leak control, pressure ratings, and more.
The Strategic Sourcing Playbook: For Buyers Who Lead
- Chapter 1: Beyond the Price Tag – The True Cost of a Fitting
- Chapter 2: The Global Factory Map – Where Your Fittings REALLY Come From
- Chapter 3: Weaponizing the Spec Sheet – Using SAE, DIN & ISO to Guarantee Quality
- Chapter 4: The Factory Audit Playbook – What Your Supplier Hopes You Don't See
- Chapter 5: The Art of the Deal – Deconstructing Supplier Costs for Maximum Leverage
- Chapter 6: Mastering the Supply Chain – How Logistics & Incoterms Protect Your Bottom Line
- → View the Full Hydraulic Fittings Sourcing & Procurement Playbook
Hydraulic Fittings: Specs, Threads & Standards
- How to Identify Hydraulic Fitting Threads (JIC, NPT, BSP)
- JIC vs. ORB vs. ORFS: Which Seal Type Actually Works?
- NPT vs BSPT Threads: What Every Tech Should Know
- Leak-Free Under Pressure: The Case for ORFS Fittings
- Should You Upgrade to Stainless Steel Hydraulic Fittings?
- The NPT Fittings Playbook: Sizing, Sealants & Pitfalls
- Fitting Safety 101: Pressure Hazards & Best Practices
- → View the Full Hydraulic Fittings Wiki
Application Insights & Custom Machining
- AN vs. JIC: Are They Interchangeable in the Real World?
- Can You Mix Fitting Brands? (Yes, But Read This First)
- Teflon Tape vs. Pipe Dope: Sealing NPT Threads the Right Way
- How to Tighten JIC Fittings Without Leaking or Cracking
- SAE Flange Fittings: Code 61 vs. Code 62 Explained
- DIN 2353 Metric Compression: The Global Bite-Type Standard
- JIC 37° Fittings: Deep Dive into SAE J514 Compliance
- → Learn About Custom Machined Fittings
Latest Fluid Power Industry News
- Market Report: 2025 Innovations in Hydraulic Efficiency
- Analysis: Key Trends in Sustainable Fluid Power
- Briefing: Material Science Breakthroughs for Hydraulic Parts
- Outlook: North American Fluid Power Market 2025
- Forecast: Global Fluid Power Market Growth & Analysis
- → Access All Industry Development Reports
Good Suppliers Are Hard to Find. Here We Are.
You’ve seen the facility. You know our process. You understand our principles. Now, ask yourself: do you want parts from a reseller's spreadsheet or from a factory that takes quality as seriously as you do? If you’re a wholesaler, OEM, or distributor who is finished with excuses, let’s talk. We're ready to get to work.
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