Jamieson Equipment Co
Jamieson Equipment Co
5314 Palmero Court
Buford, GA 30518
Ph:800-875-0280
Website: www.jamiesonequipment.com
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The Series 30/31 is built to meet the stringent requirements for many of today’s applications. Availiable in wafer or lug style body with unique features that results in longer service life, easy parts replacement, and interchangability of components. The unique Double-D Disc/Stem connection eliminates exposure of the stem and stem retention componets to the line media. The unique tougue-in-groove seat design provides for easy replacement and are self-sealing between flanges.

Specifications:
• Size Range: 2" - 20" (50mm - 500mm)
• Body Style: Wafer, Lug
• Temperature Range: -20°F to 400°F (-29°C to 204°C)
• Pressure Ratings: Bidirectional Bubble-tight Shut-Off: to 175 psi (12 Bar)
• Body (CWP): 250 psi (17.2 Bar)
• Body Materials: Cast Iron, Ductile Iron, Carbon Steel, Aluminum
• Disc Materials: Nylon 11 Coated Ductile Iron, Aluminum Bronze, Stainless Steel, Hastelloy®*, Halar®* Coated Ductile Iron
• Stem Materials: Stainless Steel, Monel K500
• Seat Materials: BUNA-N, EPDM, FKM*, Polyurethane
• Applications: Potable Water, Wastewater, Seawater, HVAC

Series 30 & 31 Butterfly Valve
Series 30/31 Cut Drawing
Unit of Measure
1 2 

Item #

Item Name

Dimension A

No. of Holes

300200-11010119 N/A Series 30 Wafer Body Valves Full Cut (2" Butterfly Valve) N/A 3.69 N/A 4
300250-11010119 N/A Series 30 Wafer Body Valves Full Cut (2 1/2" Butterfly Valve) N/A 4.19 N/A 4
300300-11010119 N/A Series 30 Wafer Body Valves Full Cut (3" Butterfly Valve) N/A 4.88 N/A 4
300400-11010119 N/A Series 30 Wafer Body Valves Full Cut (4" Butterfly Valve) N/A 6.06 N/A 4
300400-11011119 N/A Series 30 Wafer Body Valves Under Cut (4" Butterfly Valve) N/A 6.06 N/A 4
300500-11010119 N/A Series 30 Wafer Body Valves Full Cut (5" Butterfly Valve) N/A 7.06 N/A 4
300500-11011119 N/A Series 30 Wafer Body Valves Under Cut (5" Butterfly Valve) N/A 7.06 N/A 4
300600-11011119 N/A Series 30 Wafer Body Valves Under Cut (6" Butterfly Valve) N/A 8.12 N/A 4
300600-11010119 N/A Series 30 Wafer Body Valves Full Cut (6" Butterfly Valve) N/A 8.12 N/A 4
300800-11011119 N/A Series 30 Wafer Body Valves Under Cut (8" Butterfly Valve) N/A 10.50 N/A 4
301000-11011119 N/A Series 30 Wafer Body Valves Under Cut (10" Butterfly Valve) N/A 12.75 N/A 4
301200-11011119 N/A Series 30 Wafer Body Valves Under Cut (12" Butterfly Valve) N/A 14.88 N/A 4
14" Butterfly Valve N/A Series 30 Wafer Body Valves Under Cut N/A 17.05 N/A 4
16" Butterfly Valve N/A Series 30 Wafer Body Valves Under Cut N/A 19.21 N/A 4
18" Butterfly Valve N/A Series 30 Wafer Body Valves Under Cut N/A 21.12 N/A 4
20" Butterfly Valve N/A Series 30 Wafer Body Valves Under Cut N/A 23.25 N/A 4
2" Butterfly Valve N/A Series 31 Lug Body Valves Full Cut N/A 3.69 N/A 4
2 1/2" Butterfly Valve N/A Series 31 Lug Body Valves Full Cut N/A 4.19 N/A 4
3" Butterfly Valve N/A Series 31 Lug Body Valves Full Cut N/A 4.88 N/A 4
4" Butterfly Valve N/A Series 31 Lug Body Valves Full Cut N/A 6.06 N/A 8
5" Butterfly Valve N/A Series 31 Lug Body Valves Full Cut N/A 7.06 N/A 8
6" Butterfly Valve N/A Series 31 Lug Body Valves Under Cut N/A 8.12 N/A 8
8" Butterfly Valve N/A Series 31 Lug Body Valves Under Cut N/A 10.50 N/A 8
10" Butterfly Valve N/A Series 31 Lug Body Valves Under Cut N/A 12.75 N/A 12
12" Butterfly Valve N/A Series 31 Lug Body Valves Under Cut N/A 14.88 N/A 12
Unit of Measure
1 2