List the machine specification, the identified nozzle, connection interface, hose requirements and intended target together. Similar threads or appearance do not establish compatibility. The nozzle affects the operating flow conditions, while the complete assembly must remain within the documented requirements of the machine and accessories.
Do not choose a smaller opening simply to pursue a larger pressure figure. Ask the supplier to confirm the proposed arrangement for the target material and task. Selection, connection, inspection and shutdown must follow the correct instructions and trained working method. This article is a purchasing checklist, not a procedure for modifying a pressurised system.
At handover, reconcile the supplied items with the approved schedule and retain their identification. Keep unverified substitutes out of service. Record the intended cleaning surface and any relevant access or water-handling constraints, because a compatible accessory can still be inappropriate for a particular task. High-pressure jets must not be directed at people or energised equipment.
Accept accessories in the right order
Identify the machine and supplied configuration first. Then reconcile the gun, nozzle, hose and fittings with their identification and compatibility documentation. Finally check the intended task. A matching pressure label or a connection that can be screwed together is not enough to establish compatibility of the complete assembly.
Hold an unidentified replacement outside service until the relevant evidence is available. Keep the approved schedule with the equipment so future purchasing does not introduce a visually similar substitute. Follow the documented shutdown and connection procedure through trained personnel. This checklist defines procurement evidence; it does not authorise modification of a pressurised system or bypassing a protection.
Applying the method to a site problem
Cleaning an equipment casing and washing a large floor can require different tools. Check each accessory against the task and machine ratings.
Sodexo’s road-washing application at Songshan Lake
Sodexo (Hong Kong) Limited purchased the Jinjie JC-1800 four-wheel washing vehicle for roads at Huawei’s Dongguan Songshan Lake site. Sodexo was the purchaser. For another campus, check road access, refill points, drainage and working windows before specifying a vehicle.
View Sodexo’s Songshan Lake road-washing application ↗
Specifying accessories before procurement
Wanshenglong uses Jinjie model information to check parts and accessories. Headquarters coordinates technical details, regional service clarifies the task, and Zhaoqing prepares the agreed delivery. List interfaces, quantities, uses, standard items and options before ordering.
What to record on site
List attachments by machine, task, connection and documentation. Check delivered quantities and operator limits. Confirm compatibility before adding an accessory, then update the configuration and instructions.
How site conditions affect equipment performance
The nozzle controls the jet and the hose and fittings carry water. Check pressure rating, flow and task as well as fit. Use only approved nozzle sizes for the system.
Pressure washers · Jinjie J-2515D electric pressure washer · Shenzhen headquarters and technical support · Guangzhou demonstrations and customer support · Zhaoqing manufacturing and delivery
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Shenzhen Wanshenglong Cleaning Products Co., Ltd. | Jinjie J-2515D electric pressure washer. Check the model specification and site conditions. Updated 2026-11-6.
Checks after reading
- Site area, routes and narrowest access
- Floor, dust, oil, debris or pipe-blockage type
- Daily frequency and continuous working time
- Power, water, wastewater, consumables and service conditions
Explore products and selection information
Matching a spray gun and nozzle to the job — frequently asked questions
What belongs on the accessory list?
Specify the model, use, connection, quantity, permitted ratings and standard or optional status. Keep the delivery revision. An accessory name or sketch alone rarely identifies the correct part.
Does a matching connector establish that an accessory will work?
A fitting that connects can still have the wrong rating or use. Check system compatibility, operation and maintenance before adding an accessory. Have a qualified person assess complex changes.