YB7 Back Pressure Valve

Product Description

APLICATION

Back pressure valve is used to the applicable conditions that the common controlling system can not be used, as a kind of special pressure control valves, it commonly match with automatic recirculation valve to protect pump system.Back pressure valve is used to control upstream pressure, enables to achieve factory technological setting pressure value and system required pressure value, preventing vaporization and corrosion phenomena. Carefully matched technological condition between automatic recirculation valve and back pressure valve, ensure pump get the best protection, guarantee long-term stability for safe operation system.

WORKING PRINCIPLE

This valve is self-support type, do axial movement along valve disc by spring force function, so as to generate differential pressure around back pressure valve. Meanwhile, valve seat hole opening bigger and bigger gradually until pressure differential reaches setting point.

INSTALLATION

In order to make the valve to achieve to best performance, BPV should be installed in downstream of the important protected valve, since valve outlet velocity is high, installation location should be close deaerator or water supply tank.

MAINTENANCE

Be easy to operation and maintenance.We can provide installation and maintenance manual.

VALVE SIZE

DN25~DN150(1″-6″)Standard size: DN25~DN150(1″-6″)

PRESSURE RANGE

Nominal pressure range: PN10~PN400(ANSI 150Lbs~ANSI 2500Lbs).Other pressure range is according to requirements.

CONNECTION

Flange connection standard is according to DIN or ANSI, other standard (e.g. ISO, BS, JIS, NF) can be customerized.

MATERIAL TEMPERATURE RANGE

INSTALLATION

In order to make the valve to achieve best performance, YB7 should be installed in the downstream of the protected valve, since valve outlet velocity flow is high, installation location should near close to deaerator or tank.

PARTS AND MATERIAL

Hebei Lufeng Piping Equipment Co., Ltd. is ISO 9001 certified exporter & supplier of steel piping materials. We are committed to provide customers quality products with competitive prices and efficiency service.

Established in 2008, our experienced and friendly staffs are dedicated to provide you professional and considerate services. Located in Cangzhou city—called “the manufacturing base of China pipe fittings” and near to Tianjin port, geographic and economic advantages enable Lufeng to provide customers good prices and delivery time.

Our pipeline products include steel pipes/ tubes, buttwelding fittings, steel flanges, forged fittings, valves, gaskets, fasteners and other accessories. They are strictly manufactured according to ISO, ASME, ASTM, ANSI, API, MSS, AWWA, DIN, BS, EN, JIS, GB and other international standards. Production as per customer’s drawings or requests is also available.

In early 2023, we opened a new warehouse for duplex stainless steel products. Used for storage of duplex stainless steel 2205 & 2507 round bars, steel plates, steel pipes and flange blanks. These materials are from the most professional manufacturers in China.

LUFENG will be at your service at any time. If you have any needs or requirements, please contact us freely. Look forward to be your long-term and trusted partners for pipeline in China.

Catalogue of LFPCO-2020.pdf

Letter of presentation.pdf