The King Combination Nipple (KC Nipple) is a transition hose fitting designed to join industrial rubber or synthetic hoses directly to hard pipe systems or equipment manifolds.
Size Availability
|
Dimension |
Carbon Steel |
SS316 |
SS304 |
Aluminum |
|
DN15 (1/2") |
√ |
√ |
√ |
√ |
|
DN20 (3/4") |
√ |
√ |
√ |
√ |
|
DN25 (1") |
√ |
√ |
√ |
√ |
|
DN32 (1-1/4") |
√ |
√ |
√ |
√ |
|
DN40 (1-1/2") |
√ |
√ |
√ |
√ |
|
DN50 (2") |
√ |
√ |
√ |
√ |
|
DN63 (2-1/2") |
√ |
√ |
√ |
√ |
|
DN75 (3") |
√ |
√ |
√ |
√ |
|
DN100 (4") |
√ |
√ |
√ |
√ |
|
DN125 (5") |
√ |
√ |
√ |
- |
|
DN150 (6") |
√ |
√ |
√ |
- |
|
DN200 (8") |
√ |
- |
- |
- |
|
DN250 (10") |
√ |
- |
- |
- |
|
DN300 (12") |
√ |
- |
- |
- |
Product Specifications
|
Category |
Specification |
|
Thread |
NPT / BSPT options |
|
Pressure Rating |
Up to 150 PSI (10 Bar) |
|
Temperature Range |
-20°C to +180°C |
|
Connection Design |
Precision barb shank, tapered thread, smooth bore |
|
Clamp Compatibility |
Bolt clamps, band clamps, crimp ferrules |
|
Pressure Test |
1.5× working pressure test; burst >450 PSI |
|
Surface Treatment |
Galvanized coating >12 μm; SS passivation available |
|
Thread Inspection |
Go/No-Go gauge tested |
|
Pull-Off Strength |
Up to 8.5 kN tensile resistance |
|
Internal Finish |
Smooth bore for reduced flow resistance |
OEM & Custom Options
Precision Thread Machining
Custom male and female threads engineered in NPT (ANSI B1.20.1), BSPT (ISO 7-1), and BSPP (ISO 228-1).
Shank & Barb Customization
Tailored shank lengths, wall thicknesses, and custom barb profiles matching specific industrial hose specifications.
Direct CAD & Sample Production
Complete OEM manufacturing executed against customer 2D/3D CAD files (STEP, DWG, PDF) or physical samples.
Component Marking
High-precision fiber laser etching for custom SKUs, buyer logos, material grades, and heat tracking numbers.
Manufacturing Process
Raw Material Inspection: OES spectrometry verifies ASTM A53/A106 Grade B carbon steel, logging heat numbers for instant mill test report (MTR) traceability.
CNC Machining: Precision turning produces NPT/BSPT threads and barbs to tolerances of ±0.05 mm, ensuring leak-free hose connections.
Hot-Dip Galvanizing: A zinc coating of ≥85 μm, applied in accordance with ASTM A153, protects the steel against saltwater corrosion.
Thread Verification: 100% post-galvanizing inspection with working ring and plug gauges ensures hassle-free field installation.
Final Sampling: Dimensional and coating inspections are conducted in accordance with ISO 2859-1 AQL 0.65 standards before packing.
Commercial Terms
|
MOQ |
500 pieces per standard size. |
|
Sample Policy |
Standard stock samples dispatched within 3 business days (freight collect). |
|
Lead Time |
25 to 30 calendar days upon receipt of advance deposit. |
|
Payment Terms |
T/T (30% deposit, 70% against B/L copy) or Confirmed L/C at sight. |
|
Delivery Terms |
FOB Shanghai / Ningbo, CIF destination port, or DDP direct to destination facility. |
Compliance & Certifications
Quality System
Facility operated under an ISO 9001:2015 certified Quality Management System.
Chemical Safety
Fully compliant with EU REACH Regulation (EC) No 1907/2006 and RoHS guidelines.
Pressure Standards
Manufactured in alignment with Pressure Equipment Directive (PED 2014/68/EU) standards for industrial fluid piping.
FAQ
Q: What warranty do you provide on the KC Nipple after delivery?
A: We provide a 12-month warranty covering structural defects, material porosity, or thread out-of-tolerance issues, with free replacement parts for confirmed manufacturing faults.
Q: Is your REACH and RoHS compliance backed by a test report?
A: Yes, we issue a REACH SVHC test report and RoHS 2.0 declaration per shipment batch, tested by an accredited third-party lab such as SGS or Intertek.
Q: Can I arrange my own third-party inspection before shipment?
A: Yes, we accommodate pre-shipment inspection by SGS, BV, or TUV at the buyer's cost, scheduled at least 3 working days before container loading.
Q: What happens if a defect is found after the goods arrive at my port?
A: Report the issue with photos within 30 days of arrival; we will issue an 8D corrective action report within 72 hours and ship replacement parts by air freight at our cost for confirmed batch defects.
Q: Do you provide mill test reports or material traceability documents?
A: Yes, every batch includes a Mill Test Report (MTR per EN 10204 3.1) with heat-number traceability linked to the OES spectrometry results.
