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SANZHOU PRODUCTS

SDP Top and Bottom Double Guiding Parabolic Plug Type Control Valve

SDP Top and Bottom Double Guiding Parabolic Plug Type Control Valve

SDP Top and Bottom Double Guiding Parabolic Plug Type Control Valve

Information

Metal-seated quick-changeable trim combination with top and bottom guiding. This double guiding construction stabilizes stem and plug over the full travel range. The bottom guiding is located right below the seat ring and can be easily replaced. Most conventional body designs with top and bottom guided trim have a bolted bottom flange which requires an extra body gasket plus the risk of additional external leakage.

SDP is recommended for large pressure drop, high flow rate and instability fluids applications.
 
    Standard Specification
Valve Body
Type: Cast globe Valve
Nominal Size: DN 40, 50, 65, 80, 100, 150, 200, 250,
300, 350, 400
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:STD type……-46℃~200℃; 200℃~300℃
Radiation fin type……300℃~530℃
(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 shownn 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:Parabolic column plug
Flow Characteristic:EQ%、Linearity、Quickly opening(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 5.1~5.5
Air Connection:G1/8(SA1);G1/4(SA2);G3/4(SA3)
STD Specification:As shown in Table 5.1~5.5
 
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