VALVE SIZE: 1~ 8 INCH PRESSURE RATING: ANSI 150 ~ ANSI 600 TEMPERATURE: -198o C~ 316o C FLOW CHARACTER: EQUAL-PERCENTAGE LINEAR QUICK-OPENING SHUT-OFF CLASS: CLASS IV ~ VI END CONNECTION: FLANGED, WELDDED, SCREWED
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Type 2002 is a kind of global-style, single seat, cage-guided and direct-acting control valve, it offers push down-to-close plug action. The design features balanced valve plug, metal-PTFE seating for strict shutoff requirements, and SILEN-E cage and metal-to-metal seating for higher temperature application. All standard Trims for 2002 control valve are easy and quick interchangeable, noise-reducing cages and anti-cavitations cages with different designs attenuate aerodynamic noise in gaseous service, and reduce cavitations damage in liquid service. 2002 cage guided control valves are used for on-off and throttling control. They are suitable for wide range of pressure drops and temperature ranges. The process mediums include different kinds of gases and liquids. The applications cover different areas such as petrol-gas, chemical, power generation and steel industries.
Valve Size 1, 1-1/2, 2, 2-1/2, 3,4 , 6 &  8  inch
Maximum  inlet pressure With cast iron Valve body Flange connection: Class 125B, 250B comply with standard ASME B16.1
With steel and stainless steel valve body Flange connection: Class 150,300 &600 comply with standard ASME B16.34
Screw or weld connection: Class  600 comply with standard ASME B16.34
Maximum pressure Drop Same as above  maximum inlet pressure rating, other restrictions in bellow:
Temperature-pressure chart  for typical valve trim in Figure18
Temperature-pressure chart  for valve with SILEN-C cage in Figure20
Temperature-pressure chart  for valve with SILEN-E cage in Figure19
Temperature-pressure chart  for valve trim comply with NACE standard in Figure21
Process connection and size With cast iron Valve body Flange connection: 1 8 inch
with FF (Flat Flange~), Class 125 comply with   standard  ASME B16.1
with RF (Raise-face Flange), Class 250 comply with  standard  ASME  B16.1
With   steel   or stainless steel valve body Flange connection: 1 8 inch
~
with RF (Raise-face) Flange, Class150, 300 & 600 comply with standard ASME B16.5
with RTJ (Ring-Type-Joint Flange), Class150, 300 & 600 comply with  standard ASME  B16.5
Screw connection: 1~2 inch, Class 600,comply with  standard  ASME B16.11
SW (socket weld): 1~8 inch, Class 600,comply with  standard  ASME B16.11
BW (butt weld): 1~8 inch, Class 600,comply with  standard  ASME B16.25
Valve trim material design Valve trim has different material designs for plug, stem, seat ring, cage, etc.
Detail in Table 12, Table13 ,Table 14 , Table 15 & Table 16.
Packing PTFE, Graphite, Duplex packing
Detail in description of packing system, Table 2, 3, 4 and  Figure3, 4, 5,6 & 7
Flow characteristics Standard cage Noise-reducing cages Anti-cavitations cage
Quick opening Linear
Equal-percentage 
Linear Linear
Flow direction Standard cage  Noise-reducing cages  Anti-cavitations cage 
Normal downward  Always upward  Always downward 
Valve shutoff classification Description of shutoff classification  in Table 5, Table 6 & Figure 8, Figure 9, comply with standard ANSI/FCI 70-2 & IEC60534-4
Flow coefficient Flow coefficient and noise calculation in Table 23~Table 31 & Figure 22
Pressure-temperature limitation for valve body/trim/construction material Different material pressure-temperature range in Table 20, Table 21 & Table 22
Valve body/trim  temperature limitation in Table 17
Temperature limitation for valve body/trim with SILEN-C cage  in Table 15
Temperature limitation for valve body/trim with SILEN-D cage  in Table 14
Temperature limitation for valve body/trim with SILEN-E cage  in Table 13
Temperature limitation for screw material comply with NACE standard  in Table 18
Other parts: temperature limitation for  construction materials  in Table 19
Construction Material Valve body and bonnet Cast Iron, WCC steel, CF8M( 316 stainless steel), LCC,WC9
LCC,WC9(chrome-molybdenum steel) Other materials please specify
Bonnet spacer
Bottom flange
Valve plug, cage & metal seating Detail in valve trim design Table12~Table18
Bellows seal part 316Lstainless steel, N04400
Other parts Detail in construction materials and temperature limits Table 19
Port diameter and
valve plug travel/Yoke boss & valve stem diameter
Detail of port diameter and valve plug travel in table 32,33&35. Detail of Yoke boss & valve stem diameter in Table 34 & 35
Bonnet styles Standard bonnet B0 Detail in bonnet selection guides Table 7, Table 8, Table 9 & Figure 14, Figure 15
Extension B1 & Extension B2
Bellow type bonnet B3
NACE application Comply with NACE  standard MR0175, material requirement in Table 16, Table 18 & Figure 21
Dimension and Weight  Detail in Table 36,Table37, Table 38, Table 39 & Figure 23, Figure 24

Balanced plug design increase stability Plug construction has balanced and standard design, valve can be assembled with small thrust and low cost actuator, reduce the inventory need for parts. Different flow control In additional to the standard full flow trims, we also offer different flow-restrict trims for low flow control requirements. Full-sized trims and restricted-flow trims match the variable process flow demands. Save maintenance cost Different types of valve trims with standard design are easy and fast interchangeable, the valve body can stay on the pipe lines when dis-assemble the valve trims. Satisfy different process application Different combination of valve trim materials satisfy the special requirements for plug, stem, cage and seat ring, for the most flexible application. Stainless steel trims are hard facing to give the great wear resistance. PTFE seating to keep longer sealing Controlled compression of standard seat construction protects PTFE disk between metal disk seat and disk retainer. A back-up ring or spring-loaded forces the valve plug seal ring against the cage to maintain the excellent shutoff ability.The temperature limits are extended to 316 (600) for non-oxidizing service and to 260 (500 ) for oxidizing service. Different flow characteristics Standard valve cage/plug offer the following particular flow characteristics: Quick-opening, Linear, Equal percentage Higher flow capacity The flow channel has the character linear design, improves the flow capacity compare to normal valves. Valve plug stability under high pressure The valve cage guiding is strong and durable; reduce the damage by vibration and mechanical noise. Noise-reducing and anti-cavitations design Different effective designs of noise-reducing cages and anti-cavitations cages, attenuate aerodynamic noise in gaseous service, and reduce cavitations damage in liquid service. Cage SILEN-E1 (standard travel) and SILEN-E2(long travel) can be assembled to all 1” ~8” valve and prolong valve life time and reduce maintenance cost. Sour gas service capability The valve’s corrosive design follows NACE standard construction and trim parts material comply with standard MR-0175/ISO 15156 and NACE MR0103, available for sour fluids and gasses applications. Excellent packing sealing The packing system use material of PTFE, graphite or duplex packing, with live-loading design, offer reliable and excellent stem sealing, reduce the cost of packing replacement. Bonnet styles There are different bonnet types available: standardB0, extension B1, extension B2 and bellow typeB3, particular designed for different process temperature and leakage requirement.



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