| Category | Customization Details & Range |
|---|---|
| Product Types | Eco-Friendly Yellow Zinc Carbon Steel Bulkhead Fittings |
| Manufacturing Processes | Hot Forging / Red Punching: Eliminates internal porosity and enhances high-pressure resistance. Cold Heading: Ideal for high-speed, cost-effective mass production. Precision CNC Machining: Secondary processing for ultra-tight tolerances. |
| Carbon Steel Material | 1020, 1045, 12L14, 1215, Q235B, 42CrMo etc. (High strength and excellent machinability). |
| Stainless Steel Material | 201, 304, 316, 316L, 303, etc. (For superior corrosion resistance and high-hygiene environments). |
| Other Materials | Brass, Copper, Aluminum, and specialized custom alloys upon request. |
| Precision / Tolerance | Standard Tolerance: ±0.02mm |
| Thread Standards | NPT, NPTF, BSPP (G), BSPT (R/RP), Metric (M), UNF, UNEF, etc. (99% verified by Go/No-Go gauges). |
| Surface Treatment | Electroless Nickel Plating, Zinc Plating (Clear/Yellow), Passivation, Anodizing, Black Oxide, Heat treatment, Chrome plated, Dacromet, etc. |
| Quality Control | Salt Spray Testing, Hardness Testing, Full Dimensional Inspection, and Material Test Reports (MTR). |
| Production Capacity | Equipped with 60 sets of precision CNC Lathes integrated with Automated Truss Robots. |
| MOQ & Lead Time | MOQ 2000pcs. |
Product Description
Upgrade your fluid conveyance and hydraulic networks with premium Eco-Friendly Yellow Zinc Bulkhead Fittings from Yuhuan Hongqian Machinery Co., Ltd. Specifically engineered for heavy-duty truck applications, commercial vehicles, and industrial fluid systems across the United States and South American markets, these heavy-duty carbon steel pipe adapters deliver ultra-secure, leak-free performance through panels, firewalls, and bulkheads.
Built to withstand intense vibration, high pressure, and grueling operational environments, our fittings combine robust material integrity with advanced surface engineering.
Bulkhead fittings Specification Reference Table:
| Item no | Outer thread size | Inner pipe size | LENGTH | HEX INCH |
|---|---|---|---|---|
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 35.6mm | 31.75mm |
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 24.13mm | 25.4mm |
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 38.1mm | 25.4mm |
| 1/2 bulkhead fitting | 1-1/8-12UNF | 1/2-14NPT | 38.1mm | 31.75mm |
| 1-14 bulkhead fitting | 1-14UNF | 3/8-18NPT | 35.6 mm | 31.75mm |
| 1-1/8 bulkhead fitting | 1-1/8-12UNF | 1/2-14NPT+3/8+18NPT | 38.1 mm | 31.75mm |
Why Choose Yuhuan Hongqian Machinery Co., Ltd.?
As a direct-factory manufacturer based in Taizhou, Zhejiang, China, Yuhuan Hongqian Machinery Co., Ltd. brings over 8 to 10 years of specialized mastery in custom CNC turning and industrial pipe fittings. When you partner with us, you are collaborating with true industry insiders:
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Unmatched Professional Mastery of Bulkhead Fittings: Years of hands-on manufacturing and global export have given us an elite, deep-rooted familiarity with every single nuance of bulkhead fittings. We don’t just make them; we thoroughly understand their sealing mechanics, installation environments, thread engagement depths, and tolerance dynamics better than anyone else.
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Medium Carbon Steel & Uncompromising Hardness: We select high-grade medium carbon steel with precise metallurgical control, ensuring our fittings possess the structural rigidity and burst-pressure resistance required to survive brutal heavy-duty truck operations.
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Elite Thread Control with a 99%+ Pass Rate: Backed by our profound technical know-how, advanced CNC lathes, and strict inspection via optical projectors and spectrometers, we command absolute precision over thread angles and pitches, guaranteeing a thread pass rate of over 99%.
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Massive Year-Round Inventory: We maintain large quantities of stock year-round, backed by agile manufacturing scheduling to ensure seamless supply chains for global distributors.
Key Features & Advantages for Global Buyers
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Heavy-Duty Truck & Hydraulic Engineering: Expertly designed for the rigorous demands of heavy-duty truck fluid lines and air brake circuits across North and South America.
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Eco-Friendly Yellow Zinc Plating: Provides exceptional anti-corrosion armor against road salt, moisture, and mud, ensuring stellar longevity under chassis.
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Precision CNC Machined Threads: Engineered with exact UNF outer threads and NPT inner ports, reflecting our deep technical proficiency in leak-prevention.
What is the benefit of the eco-friendly yellow zinc plating?
The yellow zinc protective coating creates a strong barrier against rust, road salt, and moisture, significantly extending the service life of the fittings in harsh outdoor and under-chassis environments.
Which markets and regions do you primarily supply to?
Our carbon steel bulkhead fittings are primarily exported to commercial vehicle and hydraulic system builders across the United States and various South American countries.
Do you have these fittings in stock for immediate shipment?
Yes, we are a direct manufacturer maintaining large-scale inventory year-round to support fast turnaround times and prompt dispatch for global wholesale buyers.
What is your Minimum Order Quantity (MOQ)?
The standard Minimum Order Quantity (MOQ) for these bulkhead fittings is 2,000 pieces per order.
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Eco-Friendly Yellow Zinc Bulkhead Fittings | Heavy-Duty Carbon Steel Pipe Adapters