This line of MARZOLF™ Flanges is designed to mate up with class 300 bolt hole pattern. MARZOLF™ Flanges save money and reduce down time by eliminating the need to cut and reweld piping when installing or replacing Van Stone style flanges. These rings are available with different corrosion resistant coatings including Zinc Electro Plate and E-Coat Epoxy.
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Item #

Legacy Part Number

Size

Inside Diameter (I.D.)

Outside Diameter (O.D.)

Thickness (T)

Bolt Circle (B.C.)

Number of Holes

Holes Diameter (H.D.)

Weight Each

0050G80-300-IPS N/A 361G80-300-IPS N/A 1/2 in N/A 0.90 in N/A 3-3/4 in N/A 3/4 in N/A 2-5/8 in N/A 4 N/A 5/8 in N/A 3 lb
0075G80-300-IPS N/A 360G80-300-IPS N/A 3/4 in N/A 1.11 in N/A 4-5/8 in N/A 3/4 in N/A 3-1/4 in N/A 4 N/A 3/4 in N/A 3 lb
01G80-300-IPS N/A 357G80-300-IPS N/A 1 in N/A 1.38 in N/A 4-7/8 in N/A 3/4 in N/A 3-1/2 in N/A 4 N/A 3/4 in N/A 3 lb
0125G80-300-IPS N/A 358G80-300-IPS N/A 1-1/4 in N/A 1.72 in N/A 5-1/4 in N/A 3/4 in N/A 3-7/8 in N/A 4 N/A 3/4 in N/A 4 lb
0150G80-300-IPS N/A 359G80-300-IPS N/A 1-1/2 in N/A 1.97 in N/A 6-1/8 in N/A 3/4 in N/A 4-1/2 in N/A 4 N/A 7/8 in N/A 6 lb
02G80-300-IPS N/A 268G80-300-IPS N/A 2 in N/A 2.46 in N/A 6-1/2 in N/A 1 in N/A 5 in N/A 8 N/A 3/4 in N/A 7 lb
0250G80-300-IPS N/A 182G80-300-IPS N/A 2-1/2 in N/A 2.97 in N/A 7-1/2 in N/A 1 in N/A 5-7/8 in N/A 8 N/A 7/8 in N/A 10 lb
03G80-300-IPS N/A 172G80-300-IPS N/A 3 in N/A 3.60 in N/A 8-1/4 in N/A 1-1/8 in N/A 6-5/8 in N/A 8 N/A 7/8 in N/A 13 lb
04G80-300-IPS N/A 149G80-300-IPS N/A 4 in N/A 4.60 in N/A 10 in N/A 1-1/2 in N/A 7-7/8 in N/A 8 N/A 7/8 in N/A 22 lb
05G80-300-IPS N/A 292G80-300-IPS N/A 5 in N/A 5.69 in N/A 11 in N/A 1-1/2 in N/A 9-1/4 in N/A 8 N/A 7/8 in N/A 28 lb
06G80-300-IPS N/A 126G80-300-IPS N/A 6 in N/A 6-3/4 in N/A 12-1/2 in N/A 1-1/2 in N/A 10-5/8 in N/A 12 N/A 7/8 in N/A 39 lb
08G80-300-IPS N/A 144G80-300-IPS N/A 8 in N/A 8-3/4 in N/A 15 in N/A 1-1/2 in N/A 13 in N/A 12 N/A 1 in N/A 58 lb
10G80-300-IPS N/A 150G80-300-IPS N/A 10 in N/A 10.92 in N/A 17-1/2 in N/A 1-7/8 in N/A 15-1/4 in N/A 16 N/A 1-1/8 in N/A 82 lb
12G80-300-IPS N/A 152G80-300-IPS N/A 12 in N/A 12.92 in N/A 20-1/2 in N/A 1-7/8 in N/A 17-3/4 in N/A 16 N/A 1-1/4 in N/A 115 lb
14G80-300-IPS N/A 184G80-300-IPS N/A 14 in N/A 14.18 in N/A 23 in N/A 2-1/4 in N/A 20-1/4 in N/A 20 N/A 1-1/4 in N/A 163 lb
16G80-300-IPS N/A 175G80-300-IPS N/A 16 in N/A 16.19 in N/A 25-1/2 in N/A 2-1/4 in N/A 22-1/2 in N/A 20 N/A 1-3/8 in N/A 220 lb
18G80-300-IPS N/A 176G80-300-IPS N/A 18 in N/A 18.20 in N/A 28 in N/A 2-1/4 in N/A 24-3/4 in N/A 24 N/A 1-3/8 in N/A 280 lb
20G80-300-IPS N/A 177G80-300-IPS N/A 20 in N/A 20.25 in N/A 30-1/2 in N/A 2-5/8 in N/A 27 in N/A 24 N/A 1-3/8 in N/A 325 lb
24G80-300-IPS N/A 325G80-300-IPS N/A 24 in N/A 24.25 in N/A 36 in N/A 2-5/8 in N/A 32 in N/A 24 N/A 1-5/8 in N/A 492 lb
30G80-300-IPS N/A 326G80-300-IPS N/A 30 in N/A 30.25 in N/A 43 in N/A 3-3/8 in N/A 39-1/4 in N/A 28 N/A 1-7/8 in N/A 779 lb
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