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伯尔梅特 消防系统

型号: FP 450-80 400 系列

工作原理
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FANCYIND FP 450-80 型阀门由导阀控制，配有可调式 3 通高度导阀。导阀通过连接到蓄水池底部某静止点的导管[1]来感应蓄水池水位静压力。
The Model FP 450-80 is a pilot controlled valve equipped with an adjustable, 3-way, altitude pilot. The pilot senses the

static head of the reservoir level via a tube [1] connected to a “still point” at the bottom of the reservoir.
静压力升高超过导阀设置值时，导阀[2]使压力通过球阀[4]进入上控制腔[3]，主阀关闭。
Should static head rise to pilot setting, the pilot [2] applies pressure to the control chamber [3] via cock valve [4],
powering the main valve to shut.
静压力低于导阀设置水位约 1 米时，压力排出上控制腔，主阀全开。
Should static head fall below pilot setting by approximately 1m (3 ft), the pilot vents the control chamber, causing the
利用 3 通球阀[4]可手动关闭主阀。
main valve to fully open.
对于 8”及更大尺寸的阀门，增配加速器[5]可以加快阀门反应速度。
The 3-way cock valve [4] enables manual closing of the main valve.

For 8” valves and larger, an accelerator [5] quickens valve response.

尺寸范围: 1½”-6” 尺寸范围: 8”-12”

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技术规格

该款液位控制阀在预先设置的高水位时关闭，水位大约下降一米时全开，主阀上安装的 3 通高度导阀可感应水位下降。
The Level Control Valve shall shut at pre-set high reservoir level and fully open in response to an approximately
one-meter (three-foot) level drop, as sensed by the 3-way altitude pilot mounted on the main valve.
主阀：阀门为球型或角型阀体，阀体内具有弹性隔膜组件。阀门流道无阻隔，无阀杆导向或支承杆。阀体阀盖材质为球墨铸铁。所
Main Valve: The main valve shall be an elastomeric type globe (or angle) valve with a rolling-diaphragm. The valve shall
有外部螺栓和螺母采用 316 不锈钢材料。阀门所有零部件都可在线维修更换，无需将阀门从管道上拆除。
have an unobstructed flow path, with no stem guide or supporting ribs. The body and cover shall be ductile iron. All
驱动：阀门动作由一体化隔膜组件完成。隔膜组件包括全支撑平衡式模压隔膜和内衬加强型硬化阀盘，阀盘采用径向密封。隔膜组
external bolts and nuts shall be of Stainless Steel 316. All valve components shall be accessible and serviceable
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without removing the valve from the pipeline.
Actuation: Valve actuation shall be accomplished by a fully peripherally supported, one-piece balanced

控制系统：控制系统由 3 通高度导阀（具有弹簧和 8” (200 mm)隔膜）、隔离球阀、3 通球阀和过滤器组成。所有接头都是不锈钢材
rolling-diaphragm, vulcanized with a rugged radial seal disk. The diaphragm assembly shall be the only moving part.
质。装配完成的阀门经过水力测试。
Control System: The control system shall consist of a 3-way, altitude pilot valve with a covered, centered spring

and 8” (200 mm) sensing diaphragm, (for 10” and larger valves, an accelerator shall be added), an isolating cock valve,
质量保障：阀门制造厂通过 ISO 9000 和 ISO 9001 质量认证标准认证。
a 3-way cock valve, and a filter. All fittings shall be of stainless steel. The assembled valve shall be hydraulically tested.
Quality Assurance: The valve manufacturer shall be certified according to the
ISO 9000 and 9001 Quality Assurance Standard.

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