Designed for use as a primary relief valve on ASME containers such as 250, 500 and 1,000 gallon tanks. Underwriters' Laboratories lists containers systems on which these types of valves are mounted outside the hood without additional protection, if mounted near the hood and fitted with a protective cap.
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7583 Series Semi-Internal Pop-Action 3/4 Inch (in) Container Connection (A) Size Pressure Relief Valve - (007583G)""

7583 Series Semi-Internal "Pop-Action" 3/4" Container Connection (A) Size Pressure Relief Valve
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7583 Series Semi-Internal Pop-Action 3/4 Inch (in) Container Connection (A) Size Pressure Relief Valve - (007583G)""

8684 Series Semi-Internal "Pop-Action" 1" Container Connection (A) Size Pressure Relief Valve
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7583 Series Semi-Internal Pop-Action 3/4 Inch (in) Container Connection (A) Size Pressure Relief Valve - (007583G)""

8685 Series Semi-Internal "Pop-Action" 1 1/4" Container Connection (A) Size Pressure Relief Valve
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Description N/A

Designed for use as a primary relief valve on ASME containers such as 250, 500 and 1,000 gallon tanks. Underwriters' Laboratories lists containers systems on which these types of valves are mounted outside the hood without additional protection, if mounted near the hood and fitted with a protective cap.
Container Connection (A) Size N/A 3/4 in N/A 1 in N/A 1 1/4 in
Approximate Overall Height (B) N/A 8 3/16 in N/A 9 3/8 in N/A 11 1/16 in
Approximate Height Above Coupling (C) N/A 1 7/16 in N/A 1 9/16 in N/A 1 11/16 in
Wrench Hex Section (D) N/A 1 3/4 in N/A 1 7/8 in N/A 2 3/8 in
Underwriters Laboratories (UL®) (At 120 Percent of Set Pressure) Air Flow Capacity N/A 1980 scfm N/A 2620 scfm N/A 4385 scfm
ASME (At 120 Percent of Set Pressure) Air Flow Capacity N/A 1806 scfm N/A 2565 scfm N/A 4035 scfm
Protective Cap (Included) N/A 7583-40X N/A 8684-40 N/A 7585-40X
Rating N/A American Society of Mechanical Engineers (ASME) Underwriters Laboratories (UL®) Listed
Material N/A Brass
Alternate Part Number N/A 7583G N/A 8684G N/A 8685G
Size N/A 3/4 in N/A 1 in N/A 1-1/4 in