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        LJTS Insulating Jacket Single-seat Control Valve


        Overview
        The LJTS insulating jacket single-seat control valve spool adopts the guiding structure with a compact structure. There is an S streamlined channel to reduce pressure drop and increase flow with a wide adjustable range ,which conforms to IEC534-1976.
         The valve applies to the environment in need of heat preservation. When the crystallization temperature of media is lower than environment temperature and the condition results in increased viscosity or fluid solidification,heating jacket device is adopted between the body and bonnet to ensure the technology process. The leakage of the control valve meets the standard of ANSI B16.104.The valve is equipped with the multi-spring diaphragm actuator for compact structure and large output force. This product conforms to  GB / T4213-92
         
        Actuator:
        Type: ZHA multi-spring film actuator
        ZVA5 single-spring diaphragm actuator
        ZVA6 single action cylinder piston actuator
        ZVP double action cylinder piston actuator
        Diaphragm material: Ethylene-propylene rubber clip nylon cloth,Nitrile rubber clip nylon cloth.
        Spring range:20~100,80~240Kpa(ZHA,ZVA5),190~350,190~400Kpa(ZVA6)
        Air Supply pressure: 140~400Kpa(ZHA),140~280Kpa(ZVA5),400~500Kpa(ZVA6),300~500Kpa(ZVP)
        Air source connection: Rc1 / 4 "
        Temperature of operation : -30~+70℃
         
        Valve body
        Type: Straight-through single seat casting ball valve
        Nominal diameter:40,50,65,80,100,150mm
        Nominal pressure:ANSI 125,150,300
        JIS 10、16、20K
        PN1.6,4.0Mpa
        Connection type: Flange RF
        Flange standard: JIS B2201-1984,ANSI B16.5-1981,GB/T9112~9124-2000 etc.
        Welded connection: Welded solder SW( 40~50mm) ,Butt welding BW (65 ~ 200mm)
        Material: Cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG316L), titanium, etc.
        Upper valve cover: Normal temperature type: 0~+230℃
        Elongation type I (EI):   + 230 to + 566 ° C
        Gland Form: Bolt Compression
        Stuffing: Impregnated polytetrafluoroethylene asbestos woven asbestos woven, graphite
         
        Valve components
        Spool type: Single seat plunger-type spool
        Flow characteristics: High capacity flow characteristics.
        Metal seat:Equal percentage characteristics (% C) and linearity (LC)  
        High accuracy flow characteristics  
        Metal seat:Equal percentage characteristics (% CF) and linearity (LCF)
        Material: stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L), Stainless steel surfacing stellite-alloy, titanium and corrosion-resistant alloys.
         
        Performance
        Leakage:Metal seat: Less than 0.01% of the rated capacity of the valve, in accordance with ANSI B16.104-1976IV
        Hysteresis: with positioner: less than 1% of the full travel
        Without positioner: less than 3% of the full travel
        Basic error: with positioner: less than ± 1% of the full travel
        Without positioner: less than ± 5% of the full travel
        Note: Standard V-type PTFE stuffing is adopted
        Adjustable range: 50:1.

        Research and Development Center in China Shanghai Lapar Control Valve Co.,Ltd
        Manufacturing Center in China (LAPAR Control Valve (Jiangsu) CO.,Ltd (WFOE)
        Tel:021-64423400  54823610  64966087  64961744  Fax: 021-64961482
        Shanghai ICP Licensing No. 08010624

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