HDG200 Series Cage Regulating Valve
Features
1. Compact structure;
2. Low overall height;
3. S streamlined;
4. Wide adjustable range;
5. High accuracy.
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Parameter
| Type | Fluid pressure balanced plug | ||
| Size Range | 20 ~ 400 mm (3 / 4¨ ~ 1 6¨) | Body and Bonnet material | WCB, WC6, LCB, CF8 CF8M, CF3, CF3M Hastelloy C |
| Flow characteristics | Equal percentage, linear, switch | Trim Material | 0Cr18Ni9 (304); 0Cr17Ni12Mo2 (316)
00Cr17Ni14Mo2 (316L) Above + R.TFE (Reinforeced PTFE) Above + Stellite ( hard faced) |
| Nominal Pressure | PN 1.6, 2.5, 4.0, 6.3, 10.0 MPa
ANSI Class 150, 300, 600 ; JIS 10K, 20K, 30K, 40K
|
Upper bonnet type | HDG330A series standard type -30 ~ 200 ℃
HDG330B series extended type -60 ~ 560 ℃ HDG330C series low temperature type -196 ~ -45 ℃ HDG330D series bellows seal type |
| Connection Method | Flange (RF, FM concave, RTJ)
Threaded Welding [Socket welding SW (DN≤50) Butt welding BW (DN≥65)] |
Structure | HDG310 series cage regulating valve
HDG3301 series low noise type simple double seat regulating valve |
| Plug Type | Double sealing face balance type | Packing | PTFE V-packing
Reinforced PTFE packing Expanded graphite packing |
| Flange Standard | ASME B16.5-2013
DIN EN 1092-1-2008 GB/T 9113-2010 HG/T 20615-2019 HG/T20592-2019 |
Face to face distance | GB / T12221-2005 |
Summary
HDG200 series cage two-seat regulating valve (referred to as cage regulating valve) is a pressure-balanced regulating valve. The valve body has a compact structure and low overall height, and the fluid path is S streamlined. It has the advantages of small pressure drop loss, large flow, wide adjustable range, high accuracy of flow characteristic curve, good dynamic stability, low noise and small cavitation corrosion. Because the valve plug adopts a fluid pressure balance type structure, stable operation can be achieved with a small operating force.
The throttle unit of the HDG300 series simple two-seat regulating valve has two types, which are HDG310 series with wide opening and HDG3301 series with small holes (low noise). The latter has the function of reducing noise and reducing resonance, which can be used for special Low noise applications.
This series of regulating valve can be easily made into special structures such as bellows sealing type, steam jacket type and extended upper bonnet.
