The Galvanized KC King Combination Nipple connects flexible hoses to threaded piping systems, featuring a barbed hose shank and male thread for secure attachment to valves, pumps, and equipment.
Technical Specifications
|
Nominal Size |
Inches |
Thread Spec |
Carbon Steel (Galv) |
SS316 (Silica Sol) |
SS304 (Silica Sol) |
Aluminum |
|
DN15 |
1/2" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN20 |
3/4" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN25 |
1" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN32 |
1-1/4" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN40 |
1-1/2" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN50 |
2" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN63 |
2-1/2" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN75 |
3" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN100 |
4" |
NPT / BSPT |
✓ |
✓ |
✓ |
✓ |
|
DN125 |
5" |
NPT / BSPT |
✓ |
✓ |
✓ |
- |
|
DN150 |
6" |
NPT / BSPT |
✓ |
✓ |
✓ |
- |
|
DN200 |
8" |
NPT / BSPT |
✓ |
- |
- |
- |
|
DN250 |
10" |
NPT / BSPT |
✓ |
- |
- |
- |
|
DN300 |
12" |
NPT / BSPT |
✓ |
- |
- |
- |
Product Specifications
|
Parameter |
Specification |
|
Pressure Rating |
Up to 300 PSI (DN15–DN50); 150 PSI (DN65–DN300) |
|
Thread Standards |
NPT / BSPT |
|
Coating |
12–15 µm zinc coating, salt spray tested |
|
Temperature Range |
-40°C to +260°C |
|
Tolerance |
CNC machining ±0.05 mm |
|
Hose Compatibility |
Heavy-duty suction & discharge hoses |
|
Thread Inspection |
100% gauge verification |
|
Wall Design |
Schedule 40 heavy-wall construction |

Material & Coating Options
Galvanized Carbon Steel: Cost-effective Schedule 40 steel for water and slurry discharge, rated for working pressures up to 150 PSI.
Electro-Galvanized Coating: 12–15 μm zinc coating with ASTM B117 salt-spray testing for improved corrosion protection during storage, transport, and general industrial service.
304 Stainless Steel: Prevents batch contamination in food-grade washdown lines and mild chemical transfers (pH 6–8).
316 Stainless Steel: Molybdenum-bearing alloy resisting pitting corrosion in high-chloride, acidic, and saltwater environments.
AL6061 Aluminum: Cuts fitting weight versus steel to speed up manual assembly on temporary hose lines.
Applicable Scenarios
Plant Shutdown Bypass
Connects rigid factory pipe headers to temporary flexible layflat hoses during line maintenance.
Chemical Transfer
Connects liquid storage tank drain outlets to washdown hoses for chemical flushing operations.
Site Dewatering
Mounts to discharge ports of trash pumps for high-volume groundwater and slurry discharge.
System Integration
Mates directly with standard Camlock, Bauer, and Storz quick-disconnect hose couplings.
Customization & OEM Service
Drawing-to-Part Machining: CNC machining from customer STEP, DWG, or PDF files, tailored to exact hose inner diameters and wall thicknesses.
Specialized Thread Profiles: Custom NPT, BSPT, BSPP, or Metric threads with adjustable engagement lengths per engineering specs.
Custom Laser Marking: Permanent laser etching of logos, part numbers, and heat numbers on wrench flats.
Private Label Packaging: Custom-branded inner cartons, barcoded labeling, and direct-to-warehouse pallet packaging for ready distribution.
Quality Control
Material Chemical Analysis: 100% spectrographic melt testing before machining to verify exact ASTM steel chemical composition.
Precision CNC Turning: Threading and hose barbs turned in a single setup to maintain concentricity below 0.05 mm.
Thread & Pressure Inspection: 100% thread verification using ANSI/ASME B1.20.1 GO/NO-GO gauges, with batch hydrostatic testing at 1.5 times rated working pressure.
Packaging & Logistics
Export Packaging
Plastic thread caps on every fitting, packed in 5-ply cartons on wrapped, fumigated wooden pallets (1100 × 1100 mm).
Lead Times
Standard items ready in 7–10 days; custom OEM machining runs completed in 25–30 days.
Incoterms & Payment
FOB Shanghai/Ningbo, CIF, or DDP. Payment via T/T, L/C at sight, or Net 30/60 terms for approved accounts.
Shipping Documentation
Mill Test Reports (MTR EN 10204 3.1), Commercial Invoice, Packing List, and B/L provided upon shipment departure.
FAQ
Q: Are you ISO certified?
A: Yes, our factory is ISO 9001:2015 certified, and API 6A certification is available upon request for oilfield-grade orders.
Q: How many years have you been manufacturing pipe fittings?
A: We have been manufacturing threaded pipe fittings and hose couplings since 2000, with over 25 years of export experience to more than 40 countries.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 500 pieces per size/thread spec for standard galvanized items; for custom OEM machining, MOQ starts at 200 pieces.
Q: Can I get a free sample before placing a bulk order?
A: Yes, samples are available within 3-5 working days; sample cost is refundable once the bulk order exceeds 2,000 pieces.
Q: Do you offer trade assurance or third-party inspection before shipment?
A: Yes, we support Alibaba Trade Assurance and accept pre-shipment inspection by SGS, BV, or TUV at the buyer's designated schedule.


