In the spring-loaded, steam pressure,...

Question 1 / 205eccefa5bacbc34ba4d487bd

Question 1 of 205eccefa5bacbc34ba4d487bd

In the spring-loaded, steam pressure, reducing valve shown in the illustration, the high pressure steam ______. See illustration GS-0044.

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Question 1 of 20

5eccefa5bacbc34ba4d487bd

In the spring-loaded, steam pressure, reducing valve shown in the illustration, the high pressure steam ______. See illustration GS-0044.

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🔍 Key Concepts

• Trace the steam flow path from the INLET through ports A, B, and C and see which components are directly exposed to high pressure steam. • Review how a pilot-operated (auxiliary) valve works in a spring-loaded pressure-reducing valve: the pilot usually controls pressure on a piston or diaphragm that moves the main valve. • Identify which side of the diaphragm E and piston H should see reduced (outlet) pressure versus inlet (high) pressure in order for the valve to regulate downstream pressure.

💭 Think About

• Looking at the cross‑section, which surfaces of the main valve K, piston H, diaphragm E, and auxiliary valve D are actually in communication with the high‑pressure inlet passage? • In normal operation, does high pressure steam tend to force the main valve more open or tend to shut it if the pilot were not venting/controlling anything? How does that help keep the outlet pressure constant? • Compare the purpose of the high pressure port C with the passage J that comes from the outlet side: which one is more likely to carry reduced pressure for feedback to the diaphragm?

✅ Before You Answer

• Verify which passage from the INLET actually leads to the area above or below the main piston H—do not assume it without tracing the drilled passages in the illustration. • Confirm whether the diaphragm E is connected to the outlet (low pressure) or inlet (high pressure) side; a pressure‑reducing valve usually senses downstream (reduced) pressure at the diaphragm. • Make sure that any option you pick matches the control function of the valve: high pressure should be used to move or load a part in a way that allows the spring and diaphragm feedback to regulate downstream pressure, not to bypass that control.

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Question 1 of 20

In the spring-loaded, steam pressure, reducing valve shown in the illustration, the high pressure steam ______. See illustration GS-0044.

acts to close the main valve "K"

acts to open the auxiliary valve "D"

acts directly on the lower part of the main piston "H"

bleeds pressure off the controlling diaphragm "E" via the high pressure port "C"

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Question 1 / 205eccefa5bacbc34ba4d487bd

Question 1 of 205eccefa5bacbc34ba4d487bd

In the spring-loaded, steam pressure, reducing valve shown in the illustration, the high pressure steam ______. See illustration GS-0044.

Back

Question 1 of 20

5eccefa5bacbc34ba4d487bd

In the spring-loaded, steam pressure, reducing valve shown in the illustration, the high pressure steam ______. See illustration GS-0044.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed