NEMA 4/4X Nozzle With 25mm Inner Diameter And Water Flow 240L (65 Gal) / Min
The NEMA 4/4X Nozzle enables manufacturers and testing laboratories to perform precise hosedown testing on electrical enclosures in full compliance with NEMA 250 Type 4 and 4X requirements, ensuring robust ingress protection against powerful water jets with excellent repeatability and operational convenience.
- Standard Compliance: Fully compliant with NEMA 250 Section 5.7 (Hosedown Test) for Type 4/4X enclosures
- Nozzle Specifications: 25mm (1 inch) inner diameter, SUS304 stainless steel, 200mm overall length
- Flow Rate: 240 L/min (65 gal/min) minimum – meets or exceeds NEMA requirements
- Test Distance: 3.0–3.5 m (10–12 feet) from enclosure surface
- Movement Speed: Uniform 6 mm/sec along all seams, joints, and external mechanisms
- Construction: Precision-machined SUS304 stainless steel for corrosion resistance and long-term durability
- Application: Ideal for NEMA 4/4X, IPX5/IPX6 equivalent, and high-pressure hose-down testing
- MOQ: 1 set
- Delivery Time: 7–15 working days (typical)
NEMA 4/4X Nozzle Description
NEMA 4/4X nozzle with 25mm Inner diameter and Water Flow 240L (65 gal) / min
Inner diameter:1 in
Material: stainless steel
length :200mm
5.7.1 Test Method
The enclosure and its external mechanisms shall be subjected to a stream of water from a hose that has a 25mm(1 in) inside diameter nozzle that delivers at least 240L(65 gal) per minute.
The nozzle shall be held from 3.0 to 3.5m(10 to 12 feet)from the enclosure,and the spray of water shall be directed at all points of potential water entry such as seams,joints,external operating mechanisms,and such.A seam is the junction of,or the joint between,two pieces.When two covers or doors are adjacent,their common edges shall be considered a single seam.The nozzle shall be moved along each test point one time at a uniform nominal rate of 6mm/sec.
A conduit shall be permitted to be installed to equalize internal and external pressures but shall not serve as a drain.
5.7.2 Evaluation
The enclosure shall be considered to have met the requirements if at the conclusion of the test no water has entered the enclosure.
Professional Construction & Technical Precision
The NEMA 4/4X Nozzle is precision-machined from high-grade SUS304 stainless steel, ensuring excellent corrosion resistance and dimensional stability even after repeated high-pressure water exposure. The 25mm inner diameter bore is manufactured to tight tolerances to produce a consistent, powerful water jet that accurately replicates real-world hose-down conditions. The 200mm overall length provides comfortable handling while maintaining structural rigidity during prolonged testing sessions.
Every nozzle is individually inspected for flow rate, jet pattern, and dimensional accuracy before shipment, guaranteeing repeatable test results that meet the strict requirements of NEMA 250 Section 5.7 for Type 4 and 4X enclosures.
Common Error Mitigation
To achieve accurate and standards-compliant NEMA 4/4X hosedown test results, operators should follow these best practices:
- Verify the nozzle flow rate reaches at least 240 L/min before each test series using a calibrated flow meter.
- Maintain the exact 3.0–3.5 m distance from the enclosure surface throughout the test.
- Move the nozzle at a consistent 6 mm/sec along every seam and potential entry point—avoid speeding up or pausing.
- Ensure the enclosure is properly oriented and all external mechanisms (doors, covers, operators) are in their normal operating position.
- Record test duration, flow rate, distance, movement speed, and pass/fail observations for full traceability and audit compliance.
Detail Information
| Item | Specification | Remark / Notes |
|---|---|---|
| Applicable Standard | NEMA 250 Section 5.7 (Type 4/4X Hosedown) | Also aligns with IEC 60529 IPX5/IPX6 principles |
| Inner Diameter | 25 mm (1 inch) | Precision bore for consistent jet pattern |
| Material | SUS304 Stainless Steel | Excellent corrosion resistance |
| Overall Length | 200 mm | Compact and easy to handle |
| Minimum Flow Rate | 240 L/min (65 gal/min) | Meets/exceeds NEMA minimum |
| Test Distance | 3.0–3.5 m (10–12 ft) | From enclosure surface |
| Nozzle Movement Rate | 6 mm/sec | Uniform speed along test seams |
| Test Duration | Until all potential entry points are covered | One pass per seam at specified speed |
| Pressure | Sufficient to achieve 240 L/min at nozzle | Typically 2–4 bar depending on supply |
| Evaluation Criteria | No water enters enclosure after test | Per NEMA 250 5.7.2 |
Get Free Quote of NEMA 4/4X Nozzle With 25mm Inner Diameter And Water Flow 240L (65 Gal) / Min
NEMA 4/4X Nozzle FAQs
Related Products
Related News
In the world of electronics, outdoor equipment, industrial enclosures, and consumer devices, IP Rating remains one of the most searched […]
Quick FAQ What is a Dust Chamber used for? A Dust Test Chamber is used to simulate controlled dusty environments […]
The nozzle is the heart of the IPX9K test setup, directly influencing water flow, pressure, and spray patterns. According to […]
