Vertical Multistage Jockey Fire Fighting Water Pump CDL series

Description

A Vertical Multistage Jockey Fire Fighting Water Pump, also known as a pressure-maintenance pump, is a small apparatus that works together with a fire pump as part of a fire-protection sprinkler system. It is designed to keep the pressure in the system elevated to a specific level when the system is not in use, so that the fire pump doesn’t have to run all the time and the system doesn’t go off randomly. It can also help prevent the system from damage when a fire happens and water rushes into the pipes. These devices consist of a three-part assembly. In many places, there are governmental guidelines and recommendations for installing these devices to make sure they work properly.

To understand how a jockey pump works, it’s important to understand how a fire sprinkler system works. Sprinkler systems consist of pipes with pressurized water in them and heads that are designed to open when they reach a certain temperature. When the heads open, the water pressure in the pipes drops, since water is flowing out of them. When this happens, a large device called a fire pump starts to send more water through the pipes so that the system can continue to put out the fire.

The purpose of the jockey pump is to keep the water pressure in the pipes within a specific range when there’s not a fire, so that the sprinklers won’t go off randomly. Since pipes leak, over time, the water pressure inside them automatically goes down. The jockey pump senses this, and then fills them back up to normal pressure. If a fire happens and the pressure drops dramatically, the jockey pump won’t be able to keep up, and the drop in pressure will trigger the large fire pump to start sending water.

Secondarily, this pump prevents sprinkler systems from being damaged when the fire pump begins sending water. If a system does not have a jockey pump keeping it pressurized, it may have a relatively low pressure. When the fire pump starts sending highly pressurized water through the pipes, the sudden change in pressure can damage or destroy the system.

Parameters of CDL series Vertical Multistage Jockey Fire Fighting Water Pump

Main Parts Configuration

To meet the NFPA20 standards, the pump was constructed with the following materials:

Parts Name	Material of Construction (Comply with NFPA20)
Pump Case	Cast Iron / S.S304 / S.S316
Shaft	S.S420 / S.S304
Shaft Sleeve	S.S304 /S.S316
Impeller	S.S304/S.S316
Wearing Ring	S.S304/S.S316
Bearing	China Make/NSK/SKF
Seals	Mechanical Seals

SANCHANG PUMP is a professional pump manufacturer located in Hunan, China. We have our own machinery workshop, assembly line, testing facilities, and warehouse. Now, we mainly produce industrial pumps like double suction split case centrifugal water pump, multistage centrifugal water pump, end suction centrifugal water pump, emergency drainage water pump, etc.

Our pumps are widely applied to fields and applications like industrial water supply and transferring, civil water works, high building water supply, waste water treatment and disposal, power plant cooling system, hot water circulation & boiler feeding, heating network pipeline, fire fighting system, agricultural irrigation, raw water intake, flood disposal & emergency drainage, sea water desalination plant, fish farm, shipyard, mining water disposal and petrochemical liquid handling, etc.

The ISO9001 quality management system applies in our design, production, sales and customer service of industrial pumps products, and related standards are strictly carried out during the whole procedures like pump design, production, inspection and testing. Now our products already exported to many countries in regions like Southeast Asia, Africa, Mid-East and Latin America.

OEM is available since we could produce pumps according to clients’ technical requirement, and also could provide systematic solutions and consulting based on their specific site conditions. About the service, remote online technical support and on-site consulting service could be provided according to clients’ request, and we also could dispatch our after-sales team to client’s site for equipment commissioning and maintenance if needed. Please believe that all of the clients are in good hands, since our experienced engineers and sales team are eager to solve all your faced problems.