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LBV Double Butterfly Valve

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LBV Double Butterfly Valve

Double butterfly valves can be used in most liquid product applications in the food-processing, pharmaceutical and chemical industries. The LBV (Leakage Butterfly Valve) valve offers an easy and safe separatation of products and prevents accidental mixing in case of gasket failure. The most usual applications are the ones that require safe separation of the product and CIP solutions in a single point (not in manofolds), or at the end of a manifold (e.g. CIP return) or entry of a CIP solution into a tank (through a spray ball).

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LBV Double Butterfly Valve

Operating principle

The LBV valve provides double safety:  the two butterflies are simultaneously actuated by only one actuator.
When the two valves are closed, there is a chamber between them. The chamber is under atmospheric pressure as it open to the exterior, thus, in case of failure of any of the two gaskets, leakage of the liquid product will indicate any possible mixing of products. 
The state of the gaskets is supervised by means of either of the leakage detectors. 
The other detector (superior) controls the entry of the cleaning solution to prevent any kind of contamination in the chamber. 
These 2 leakage detectors provide optimal protection and enable cleaning of the intermediate chamber.

Design and features

Compact and robust design.
Low pressure losses.
Interchangeable half-bodies (any connection type).
Connections:
weld DIN 11850
CLAMP DIN 32676
threaded DIN 11851
weld OD ASME BPE
CLAMP OD ASME BPE

Materials

Parts in contact with the products: AISI 316L
Other St.St. parts: AISI 304
Gasket: EPDM according to FDA 177.2600
Internal surface finish: Ra ≤ 0,8 μm
External surface finish: Machined

Options

Gaskets: NBR, VMQ or FPM.
Connections: SMS, RJT, FIL-IDF, etc.
Double-acting pneumatic actuator.
Inductive position sensors.
C-TOP control head (inductive position sensors or microswitches).

Documents

Operating principle

The LBV valve provides double safety:  the two butterflies are simultaneously actuated by only one actuator.
When the two valves are closed, there is a chamber between them. The chamber is under atmospheric pressure as it open to the exterior, thus, in case of failure of any of the two gaskets, leakage of the liquid product will indicate any possible mixing of products. 
The state of the gaskets is supervised by means of either of the leakage detectors. 
The other detector (superior) controls the entry of the cleaning solution to prevent any kind of contamination in the chamber. 
These 2 leakage detectors provide optimal protection and enable cleaning of the intermediate chamber.

Materials and Options

Parts in contact with the products: AISI 316L
Other St.St. parts: AISI 304
Gasket: EPDM according to FDA 177.2600
Internal surface finish: Ra ≤ 0,8 μm
External surface finish: Machined

Gaskets: NBR, VMQ or FPM.
Connections: SMS, RJT, FIL-IDF, etc.
Double-acting pneumatic actuator.
Inductive position sensors.
C-TOP control head (inductive position sensors or microswitches).

Document № FT.LBV.2_ES
Title Válvula de Doble Mariposa LBV
File type .pdf
Summary Las válvulas de doble mariposa se pueden utilizar en la mayoría de aplicaciones de productos líquidos en las industrias alimentaria, farmacéutica y química.
    Download
  • E-mail
Document № FT.LBV.2_EN
Title Double Butterfly Valve LBV
File type .pdf
Summary Double butterfly valves can be used in most liquid product applications in the food-processing, pharmaceutical and chemical industries.
    Download
  • E-mail
Document № FT.LBV.2_FR
Title Vanne Papillon Double LBV
File type .pdf
Summary La vanne papillon double peut être utilisée dans la plupart des applications de produits liquides dans les industries alimentaire, pharmaceutique et chimique.
    Download
  • E-mail
Document № FT.LBV.2_DE
Title Doppelklappenventil LBV
File type .pdf
Summary Doppelabsperrklappen können in den meisten Anwendungen für flüssige Produkte in der Lebensmittel-, Pharma- und Chemieindustrie eingesetzt werden.
    Download
  • E-mail
Document № FT.LBV.2_IT
Title Valvola a Doppia Farfalla LBV
File type .pdf
Summary Le valvole a doppia farfalla si possono utilizzare nella maggior parte delle applicazioni sui prodotti liquidi nelle industrie alimentari, farmaceutiche e chimiche.
    Download
  • E-mail
Document № FT.LBV.2_RU
Title Двойной Дисковый Затвор LBV
File type .pdf
Summary Двойные дисковые затворы широко используются в процессах пищевой, косметической, фармацевтической и химической промышленностей.
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Document № FT.LBV.2_CN
Title 双密封蝶阀 LBV
File type .pdf
Summary D气动执行的双密封蝶阀,可广泛适用于食品饮料,啤酒,制药,和化工等相关流体 的领域。LBV(防泄漏蝶阀)阀可简单安全的将两种液体分开,避免由于 密封垫损 坏发生泄漏的风险。它通常被使用在需要在同一点位(不是阀阵), 安全地将产品 与CIP分开;或者在阀阵的末端(如CIP回流),或CIP液体(通过清洗球)进入罐子 时。
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Document № 10.006.30.00ES_revC
Title INSTRUCCIONES DE INSTALACIÓN, SERVICIO Y MANTENIMIENTO VÁLVULA DE DOBLE MARIPOSA LBV
File type .pdf
Summary Este manual de instrucciones contiene aquellas indicaciones básicas que se deberán cumplir durante la instalación, puesta en marcha y mantenimiento.
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Document № 10.006.30.00EN_revC
Title INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS DOUBLE BUTTERFLY VALVE LBV
File type .pdf
Summary This instruction manual contains basic indications which should be fulfilled during the installation, start-up, and maintenance of this product.
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  • E-mail
Document № 10.006.30.00FR_revC
Title INSTRUCTIONS D’INSTALLATION, DE SERVICE ET DE MAINTENANCE VANNE PAPILLON DOUBLE LBV
File type .pdf
Summary Ce manuel d’instructions contient les indications de base à respecter pendant l’installation, la mise en service et l'entretien.
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