Description
SGC also is the
basic type among SH***0 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 ***0dBA.
SGC series is suitable to verous heavy duty services.
â– Standard
Specification
Valve Body
Type: Cast globe
Valve
Nominal Size: DN*5, *0, *5, *2, *0, *0, *5, *0, **0,
**0, **0, **0, **0, **0, **0
Nominal Pressure: ANSI **0, **0
DIN PN*6, *5, *0
JIS *0K, *0K, *0K
GB PN1.6, 2.5, 4.0 MPa
End Connection: Flange ANSI B*6.5 RF, RTJ
DIN***3/***4/***5 RF
JISB***1 RF
JB/T*1 RF
JB/T*2.2 FM
Weld: ANSI B*6.5 SW（DN≤*0）;
BW（DN＞*0）
Face to Face Dimension:
ANSI**0RF, JIS*0K（IEC********1
*7 Series）
ANSI**0RF, JIS*0K, JIS*0K（IEC********1
*8 Series）
ANSI**0/**0 RTJ（ASME
B*6.*0 CLASS **0/**0RTJ）
DIN PN*6, *5, *0（DIN****-F1）
GB PN1.6, 2.5, 4.0 MPa（ISO***2
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……**6℃～**0℃;
**0℃～**0℃
Radiation fin type……**0℃～**0℃
(Please pay attention to the different Temp. &Pressure Range of
material)
Packing Material：PTFE
V-ring compound packingã€graphite
compound packingã€
graphite packing,
Operating Temp. &Pressure range is shown in table
2，figure2
Seal Gasket：Spiral
wound gasket（PTFE***6ã€Flexible
Graphite***6）,
Graphite with metal gasket（Graphite***6ã€Graphite***4）
Valve
Trim
Plug
Type：Perforated
cylinder plug
Flow Characteristic：EQ%ã€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.：**0℃~**0℃
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：*0:1
Seat leakage：Metal
seal is according to ANSI B*6.**4 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：
â—‹Special
inspection
Flow characteristic test，material
test，low
temperature test，steam
test，non-damages
test
â—‹copper-free treatment
â—‹non-standard painting
â—‹dust and sand proof
â—‹vacuum service
â—‹tropical area proof
○completely oil-free，water-free
treatment
â—‹special air piping and fitting
â—‹strong corrosion proof
â—‹stainless steel bolt and nut for exposed parts
â—‹cold area proof
