Specifications include, but are not limited to: A. Item No. 1, Relief Valve with Flame Arrester. 1. Manufacturer, Model: Varec, 5811B42S or approved substitute. 2. Series: 5000 Series. 3. Configuration: Vent to atmosphere. 4. Type: All weather. 5. Size: 4 inches. 6. Dimensions: Height: Radius: Maximum 31 inches. Maximum 13 inches. 7. Construction: Aluminum body and stainless steel trim on valve. Aluminum housing and extensible bank. Stainless steel sheets on flame arrester. Flat face flange connections drilled to ANSI 150. 8. Accessories: Furnish connection kit(s), mounting hardware, gaskets, spare parts for a complete operating unit. 9. Other Accessories: Any and all other standard items of equipment, components and accessories as listed in the manufacturer’s specifications and/or brochures for a complete operating unit, whether specified herein or not, shall be included. B. Item No. 2, Safety Selector Valve. 1. Manufacturer, Model: Varec, SVR-1605B-ASTO or approved substitute. 2. Style: Rotary style, single active. 3. Size: 4 inches. 4. Pressure Class: ANSI 150. 5. Connection Type: Flat face flange. 6. Body Material: Aluminum. 7. Trim Material: Stainless Steel. 8. Dimensions: Height: Width: Maximum 21 inches Maximum 32 inches 9. Accessories: Furnish bleed valve, active/inactive process indicator, padlocking provision, connection kit, mounting hardware, gaskets, spare parts for a complete operating unit. 10. Other Accessories: Any and all other standard items of equipment, components and accessories as listed in the manufacturer’s specifications and/or brochures for a complete operating unit, whether specified herein or not, shall be included.
