Double seated, pneumatically controlled,...

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Question 1 of 205eccefa5bacbc34ba4d487ec

Double seated, pneumatically controlled, regulating valves exhibit good balancing characteristics essential for low-sensitivity applications because __________.

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Question 1 of 20

5eccefa5bacbc34ba4d487ec

Double seated, pneumatically controlled, regulating valves exhibit good balancing characteristics essential for low-sensitivity applications because __________.

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🔍 Key Concepts

• Double-seated control valve design – how forces on the two plugs/seats interact • Pressure distribution in a valve body – where high pressure acts and in what direction • Difference between mechanical balancing (by geometry/pressure) and control-system balancing (by signals, springs, diaphragms)

💭 Think About

• Think about what makes a valve "self-balancing" even if the control air signal or spring is not changing – what part of the valve must be doing that work? • In a double-seated valve, how does having two flow paths and two seats affect the net force on the stem from the process fluid pressure? • Which choices describe built-in hydraulic/pressure balancing, and which describe external control or actuation components?

✅ Before You Answer

• Identify which option directly involves process fluid pressure acting on both seats rather than on the diaphragm or spring • Eliminate any options that rely mainly on control signal behavior instead of valve geometry/seat arrangement • Ask: which choice would still provide balancing even if the control signal and spring were held fixed – that’s your key balancing mechanism

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Study

Question 1 of 205eccefa5bacbc34ba4d487ec

Double seated, pneumatically controlled, regulating valves exhibit good balancing characteristics essential for low-sensitivity applications because __________.

Back

Question 1 of 20

5eccefa5bacbc34ba4d487ec

Double seated, pneumatically controlled, regulating valves exhibit good balancing characteristics essential for low-sensitivity applications because __________.

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