Bushing and Port Guiding Perforated Plug Type
SGC also is the basic type among SH6000 high performance control valves.
Metal-seated quick-changeable trim combination. Particular effective for liquids and
compressible fluids at high pressure drop ratios. Perforated cylinder Plug can
effectively protect sealing surface of seat to be damaged by high speed flow scoured.
The flow which directly pass through the holes of the trim is divided into numerous
jets of cavitation liquid. In the centre of the cage the jets impact and the vapour
bubbles collapse. Here, they don't cause any damage to the valve internals and the
noise level is also reduced by 5-10dBA.
SGC series is suitable to verous heavy duty services.
Standard Specification
Valve Body
Type: Cast globe Valve
Nominal Size: DN15, 20, 25, 32, 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 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
Performance
Range ability:50:1
Seat leakage:Metal seal is according to ANSI B16.104 ClassⅣ,ClassⅤ
Hysteresis:3%(Without Positioner) 1%(With Positioner)
Linearity:±5%(Without Positioner) ±1%(With Positioner)
Rated CV:As shown in table 4
Allowable pressure differential:As shown in table 5.1~5.4
Figure Size:As shown in figure5.1,5.2,table 6.1~6.4
Weight of product:As shown in table 6.1~6.4
Specifications:
Special inspection
Flow characteristic test,material test,low temperature test,steam test,non-damages test
copper-free treatment
non-standard painting
dust and sand proof
vacuum service
tropical area proof
completely oil-free,water-free treatment
special air piping and fitting
strong corrosion proof
stainless steel bolt and nut for exposed parts
cold area proof
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