Siemens VRD40.040U 기술 지침 - 페이지 7
{카테고리_이름} Siemens VRD40.040U에 대한 기술 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. Siemens VRD40.040U 11 페이지. Double valves for use with skp electro-hydraulic actuators
페이지 인쇄
VRD4 Series Double Valves
Gas flow charts
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Siemens AG Building Technologies Division
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Flow rate (SCFH)
Figure 2. Sizing double valves
Assumptions:
1) Pressure downstream of valve is atmospheric
2) Maximum gas temperature of 140 °F
3) Valve in fully open position
NOTE:
Pressure drop is total drop across both valves when using SKPx5...
actuator, with or without an AGA66.
CAUTION:
Do not oversize valves equipped with regulating actuators SKP2..., SKP5... or SKP7...
Oversizing may limit turndown and could cause oscillations.
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Document Number CC1N7649us
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Technical Instructions
September 08, 2016
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Natural gas
Digester gas
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Air
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