What is used to protect a direct sensing...

Question 1 / 270705eccefa5bacbc34ba4d4876f

Question 1 of 270705eccefa5bacbc34ba4d4876f

What is used to protect a direct sensing steam pressure gauge from damage from contact with steam?

Question 1 of 27070

What is used to protect a direct sensing steam pressure gauge from damage from contact with steam?

🔍 Key Concepts

• Direct sensing steam pressure gauge construction and how steam can damage it • Purpose and shape of a siphon (pig-tail) tube in steam service • How condensate (water) is used to protect instruments from high steam temperature

💭 Think About

• How does the temperature of live steam affect the internal parts (Bourdon tube, springs, etc.) of a pressure gauge? • What role does a loop or pig-tail in the line play in forming and holding a water seal between the steam line and the gauge? • Would the orientation of the siphon affect its ability to trap condensate and keep steam from directly entering the gauge? If so, how?

✅ Before You Answer

• Identify which option(s) involve a water/condensate seal between the steam and the gauge mechanism. • Consider which orientation of a siphon tube will most reliably trap condensate and keep it in place during normal operation. • Verify whether simply restricting flow (needle valve) or insulating the gauge alone can prevent direct steam contact and high-temperature damage.

Question 1 of 27070

What is used to protect a direct sensing steam pressure gauge from damage from contact with steam?

The installation of a siphon tube (pig-tail) oriented horizontally in the entrance to the gauge.

The installation of a damping needle valve in the entrance to the gauge.

The installation of thermal insulation on the gauge.

The installation of a siphon tube (pig-tail) oriented vertically in the entrance to the gauge.

Question 1 / 270705eccefa5bacbc34ba4d4876f

Question 1 of 270705eccefa5bacbc34ba4d4876f

What is used to protect a direct sensing steam pressure gauge from damage from contact with steam?

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Question 1 of 27070

What is used to protect a direct sensing steam pressure gauge from damage from contact with steam?