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Valves and Accessories
Model B303 Grooved End Butterfly Valves Gear Operator
Tech Data Sheet: G315
The 50 through 300mm (2" through 12") Model B303 Butterfly Valve with Gear Operator is a self-locking, travelling nut gear operator (50 through 200mm) and segmented gearbox (250 through 300mm) type. It is equipped with adjustable stop screws to lock the valve at the full open and shut positions.
(Page 3 of 3)
Valve Material Specifications
Item No.
Description
Material
Qty.
C
1
2
3
4
5
6
7
8
9
10
11
12
Upper Stem
Bearing
O-ring
Body
Disc
Lower Stem
Dust Plug
Nameplate
Gear Operator
Handwheel
Spring Pin
Hex. Bolt
Stainless Steel 1
Polyacetal
4
9
EPDM, Nitrile, or Fluoroelastomer 4
Ductile Iron RILSAN Coated 1
H
12 8
3 11 4
A
Ductile Iron Encapsulation per Table on page 96
Stainless Steel
1
1
1
2 7
4.28 4.28 4.28 4.28 4.28 5.79 5.79 5.79 5.79 8.19 8.19 8.19
10 G
EPDM, Nitrile, or Fluoroelastomer 1
Aluminium
Ductile Iron, Steel
Ductile Iron
Steel
Zinc-Plated Steel
2 2.375 21⁄2 2.875 76,1mm 3.000 3 3.500 4 4.500 139,7mm 5.500 5 5.563 165,1mm 6.500 6 6.625 8 8.625
1
1
1
1
2
8.43 2.85 9.34 3.35 9.34 3.35 9.60 3.58
5B
6 DFE
Part Number
Pipe Size
Dimensions - mm Inches
Approx Weight Kg. Lbs.
EPDM
Nitrile
Nominal mm Inches
O.D. mm Inches
A
B
C
D
E
F
G
H
B30320EG
B30325EG
B30326EG
B30330EG
B30340EG
B30356EG
B30350EG
B30366EG
B30360EG
B30380EG
B30310EG
B30312EG
B30320TG
B30325TG
B30326TG
B30330TG
B30340tG
B30356TG
B30350TG
B30366TG
B30360TG
B30380TG
B30310TG
B30312TG
10.59 11.42 11.42 11.93 11.93 12.91
4.29 4.16 4.16 5.71 5.71 6.69 7.68
2.76 3.80 3.03 3.80 3.03 3.80 3.78 3.80 4.88 4.54 5.75 5.21 5.75 5.21 6.89 5.21 6.89 5.21 8.82 5.80
10.83 6.26 13.15 6.50
0 4.9 4.92 15.9 0 5.50 4.92 19.2 0 5.50 4.92 19.2 0 5.76 4.92 21.0 0 6.75 4.92 24.3 0 7,93 5.91 32.0 0 7,93 5.91 32.0
50
60.3
214,0
72,5
108,6
70.0
96,4
124,5
125,0
7,2
65
73.0
237,3
85,0
108,6
77,0
96,4
139,8
125,0
8,7
65
76.1
237,3
85,0
108,6
77,0
96,4
139,8
125,0
8,7
80
88.9
243,8
91,0
108,6
96.0
96,4
146,3
125,0
9,5
100
114.3
269,0
109,0
108,6
124.0
115,4
171,5
125,0
11,0
125
139.7
290,0
131,0
147,0
146,0
132,4
201,5
150,0
14,5
125
141.3
290,0
131,0
147,0
146,0
132,4
201,5
150,0
14,5
150
165.1
303,0
145,0
147,0
175,0
132,4
6,8
214,5
150,0
16,2
150
168.3
303,0
145,0
147,0
175.0
132,4
6,8
214,5
150,0
16,2
200
219.1
328,0
170,0
208,0
224.0
147,4
24,0
236,0
225,0
22,5
250
273.0
374,0
195,0
208,0
275,0
159,0
41,8
282,0
225,0
33,0
10 10.750 14.72
12 12.750 402,0 9.51
0.27 0.27 0.94 1.65 2.70
8,44 5.91 35.7 8,44 5.91 35.7 9.29 8.86 49.6 11.10 8.86 72.8 12.20 8.86 89.3
300
323.9
15.83
241,5
208,0
339,0
165,0
68,5
310,0
225,0
40.4
Note: recommended for mounting with GRINNELL Rigid couplings
For information on alternative sizes, contact a GRINNELL Sales Representative.
For instructions on part numbers, ordering information, and availability, refer to page 13 or contact a GRINNELL Sales Representative. Just for inside usage
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