The illustrated valve, figure "A", needs to...

Question 1 / 2066636ef128f7522a1c522fb5

Question 1 of 2066636ef128f7522a1c522fb5

The illustrated valve, figure "A", needs to be repaired due to a leak across the valve disk. To disassemble the valve you should __________. Illustration GS-0140

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Question 1 of 20

66636ef128f7522a1c522fb5

The illustrated valve, figure "A", needs to be repaired due to a leak across the valve disk. To disassemble the valve you should __________. Illustration GS-0140

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🔍 Key Concepts

• Identify how a typical globe valve stem is threaded relative to the handwheel (right‑hand threads: which way opens vs closes). • Determine the function of part 8 in Figure A (is it locking/packing the bonnet or actually holding the bonnet to the body?). • Look at the threads between the bonnet and the body in Figure A and how turning the stem will tend to move the disk and bonnet when part 8 is loose.

💭 Think About

• When you loosen part 8 completely, what parts are then free to move relative to the body, and what is still held in place by threads? • If the stem has right‑hand threads, which direction on the handwheel (clockwise or counter‑clockwise, viewed from the top) will raise the stem and disk away from the seat, and how would that motion help separate the bonnet from the body? • Which choices would increase loading on the seat or packing, and which would actually relieve pressure and allow disassembly without damaging parts?

✅ Before You Answer

• Confirm visually that part 8 clamps the bonnet to the body and must be fully loosened before any turning will separate them. • Trace the thread directions on the stem and bonnet in the illustration to verify which way the handwheel moves the stem up vs down. • Eliminate any option that would tend to tighten the disk against the seat or apply extra force to a closed valve, since that would not be a safe first step in disassembly.

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Question 1 of 20

The illustrated valve, figure "A", needs to be repaired due to a leak across the valve disk. To disassemble the valve you should __________. Illustration GS-0140

tighten part 4

first fully loosen part 8, then turn the handwheel clockwise to separate the bonnet from the body

first fully loosen part 8, then turn the handwheel counter-clockwise to separate the bonnet from the body

turn the handwheel clockwise as viewed from the top, using a pipe wrench for assistance

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Question 1 / 2066636ef128f7522a1c522fb5

Question 1 of 2066636ef128f7522a1c522fb5

The illustrated valve, figure "A", needs to be repaired due to a leak across the valve disk. To disassemble the valve you should __________. Illustration GS-0140

Back

Question 1 of 20

66636ef128f7522a1c522fb5

The illustrated valve, figure "A", needs to be repaired due to a leak across the valve disk. To disassemble the valve you should __________. Illustration GS-0140

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