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  • SZEL Electric Single Seat Control Valve
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  • SCN Perforated Plug Low Noise Type Control Valve
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  • V230X  Self-operated/regulating Differential Pressure Control Valve
  • SPV Pneumatic V-notch Ball Control Valve
  • SPFO Pneumatic Teflon-lined Ball Valve
  • SPTO/SPLO Pneumatic 3-way Ball Valve
  • SERB Electric lining rubber butterfly valves
  • SELO/SETO electric O-type 3-way ball valve
  • SEFO Electric o-type fluorine-butterfly ball valve
  • SEFB Electric fluorine-butterfly valves
  • SEB Electric Triple eccentric butterfly valve
  • SECO Electric ceramics o-type ball valve

SANZHOU PRODUCTS

SCW Perforated Plug Bellows Sealing Type Control Valve

SCW Perforated Plug Bellows Sealing Type Control Valve

SCW Perforated Plug Bellows Sealing Type Control Valve

Information

Based on SGC structure, Sealing bellows is added in SCW. The pressure-proof and elastic stainless steel bellows is tightly seal-welded to the valve stem and upper adapter ring. For safety reasons the construction includes a standard stem sealing as back-up in case of bellows failure.

SPW series is suitable for process fluids when stem leakage can't be tolerated at all(e.g. toxic fluids).
 
    Standard Specification
Valve Body
Type: Cast globe Valve
Nominal Size: DN15, 20, 25, 32, 40, 50, 65, 80, 100,
150, 200, 250, 300
Nominal Pressure: ANSI 150, 300
DIN PN16, 25, 40
JIS 10K, 20K, 30K
GB   PN1.6, 2.5, 4.0 MPa
End Connection: Flange ANSI B16.5 RF, RTJ
DIN2543/2544/2545 RF
JISB2201 RF
JB/T81 RF
JB/T82.2 FM
Weld: ANSI B16.5 SW(DN≤50); BW(DN>50)
Face to Face Dimension:
ANSI150RF, JIS10K (IEC60534-3-1 37 Series)
ANSI300RF, JIS20K, JIS30K (IEC60534-3-1 38 Series)
ANSI150/300 RTJ (ASME B16.10 CLASS 150/300RTJ)
DIN PN16, 25, 40 (DIN3202-F1)
GB PN1.6, 2.5, 4.0 MPa (ISO5752 1 Series)
Please refer to table 6.1~6.4
Body Material:Please refer to table1 Please refer to figure 3 for Operated Temp. &Pressure Range
Bonnet Type:Low temp. type……-196℃~-46℃
 (Please pay attention to the different Temp. &Pressure Range of material)
Packing Material:PTFE V-ring compound packing、graphite compound packing、
graphite packing,
Operating Temp. &Pressure range is shown in table 2,figure2
Seal Gasket:Spiral wound gasket(PTFE+316、Flexible Graphite+316),
Graphite with metal gasket(Graphite+316、Graphite+304)
 
Valve Trim
Plug Type:Perforated cylinder plug
Flow Characteristic:EQ%、Linearity (Please refer to figure4)
Trim Material:Please refer to table 3 for STD material assembly,operated Temp. &Pressure Range
 
Actuator
Type:Multi-spring diaphragm
Air Supply:Max. 6bar
Ambient Temp.:-20℃~+80℃
Spring range:As shown in Table 5.1~5.4
Air Connection:G1/8(SA1);G1/4(SA2);G3/4(SA3)
STD Specification:As shown in Table 5.1~5.4
 
Accessory
Positioner,Filter-regulator valve,Solenoid valve,Limit switch,
Valve position Transmitter,Booster relay,Lock-valve,Handwheel,etc.
 
Action
Air to open,Air to close

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CONTACT US

SHANGHAI SANZHOU AUTOMATION DASH CO.,LTD
ADD:No.2651, Waiqingsong Road, Baihe Town Qingpu District, Shanghai, 201709, P.R.C.
TEL:86-21-59748861
FAX:86-21-59747999
Website:www.szvalves.com
E-mail:info@szvp.cn