Cameron BARTON 289A - Changing Switch Set Point

22
Figure 4-4. Model 291B Outside Dimensions (Part 2 of 2)
PRESSURE
RATING
PSI (MPa)
HOUSING
MATERIAL
PRESSURE
CONNECTION
DIM. A
INCHES
(mm)
DIM. B
INCHES
(mm)
# BOLTS
TOP BOTTOM
1,000
(6.9)
CAST ALUM. 356-T6
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12
(304.8)
6-5/8
(168.3)
6
FORGED STNL. ST. 316
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12
(304.8)
6-5/8
(168.3)
12
2,500
(17.2)
FORGED ST. AISI C1018
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12-1/4
(309.9)
7-1/8
(181.0)
6
3,000
(20.7)
FORGED STNL. ST. 316
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12-1/4
(309.9)
7-1/8
(181.0)
12
4,500
(31.0)
FORGED ALLOY ST 4142
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12-1/4
(309.9)
7-1/8
(181.0)
12
6,000
(41.4)
FORGED ALLOY ST 4142
FORGED STNL ST 17-4 PH
9/16-18
UNF
(Note 2)
9/16-18
UNF
(Note 2)
12-1/4
(309.9)
7-1/8
(181.0)
12
FORGED ALLOY ST 4142
FORGED STNL ST 17-4 PH
1/2 NPT
(Note 1)
1/4 NPT
(Note 1)
12-1/4
(309.9)
7-1/8
(181.0)
12
Note 1: Can be reversed when ordered or can be rotated 180° in the eld.
Note 2: Suitable for use with Aminko ttings (American Inst. Co., Silver Springs, MD) or equiv.
Note 3: For Aminco ports, dimension is 2 in. (50 8 mm).
Metric conversions are approximate.
Table 4-2. Model 291B Dimensions (as shown in Figure 4-3, pg. 21)