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A vertical spring loaded valve is required for a compressed air receiver. The valve is to start opening at a pressure of I N/mm' gauge and must be fully open with a lift of 4 mm at a pressure of 1.2 N/mm gauge. The diameter of the port is 25 mm. Assume the allowable shear stress in steel as 480 MPa and shear modulus as 80 kN/mm. Design a suitable close coiled round section helical spring having squared ground ends. Also specify

A vertical spring loaded valve is required for a compressed air receiver. The valve is to start opening at a pressure of I N/mm' gauge and must be fully open with a lift of 4 mm at a pressure of 1.2 N/mm gauge. The diameter of the port is 25 mm. Assume the allowable shear stress in steel as 480 MPa and shear modulus as 80 kN/mm. Design a suitable close coiled round section helical spring having squared ground ends. Also specify

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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4. A vertical spring loaded valve is required for a compressed air receiver. The valve is to start opening at a pressure of 1 N/mm2 gauge and must be fully open with a lift of 4 mm at a pressure of 1.2 N/mm? gauge. The diameter of the port is 25 mm. Assume the allowable shear stress in steel as 480 MPa and shear modulus as 80 kN/mm. Design a suitable close coiled round section helical spring having squared ground ends. Also specify initial compression and free length of the spring.
Transcribed Image Text:4. A vertical spring loaded valve is required for a compressed air receiver. The valve is to start opening at a pressure of 1 N/mm2 gauge and must be fully open with a lift of 4 mm at a pressure of 1.2 N/mm? gauge. The diameter of the port is 25 mm. Assume the allowable shear stress in steel as 480 MPa and shear modulus as 80 kN/mm. Design a suitable close coiled round section helical spring having squared ground ends. Also specify initial compression and free length of the spring.
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