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Flange Adapter Details
125 psi/150 psi
Ductile Iron
Valve Size
Bolt
No.
Size
2
⁄
4
1
2
3
4
4
8
5
8
6
8
8
8
10
12
12
12
Table 1
3.2 Lubricated the inner and outer diameter of the gasket with
the lubricant provided or a similar non-petroleum base
water soluble grease.
3.3 Press the gasket firmly into the flange cavity ensuring
that the sealing lip is pointed outward. When in place, the
gasket should not extend beyond the end of the pipe (Fig.
3).
3.4 Position the adjoining flange or the pipe to the Flange
Adapter and install the remaining bolts. The two locking
bolts should be tightened first in order to position the
flanges correctly as shown in Fig. 1. Note: Care should
be taken to ensure that the gasket is not pinched or bent
between flanges.
3.5 Tighten remaining nuts evenly,
following bolting instructions (Fig.
4), so that the flange faces remain
parallel. Flange bolts should be
tightened to 70 ft./lbs. torque
minimum to assure firm metal-to-
metal contact. When raised face
flanges are used, there will be a
gap between the faces of the outer
diameter.
3.6 F l a n g e g a s k e t s a r e n o t
i n t e r c h a n g e a b l e w i t h o t h e r
mechanical pipe couplings or
flange gaskets.
4.0 PRESSURE TEMPERATURE LIMITS:
B and C
Note: for temperatures between 230˚F and 300˚F
(110˚C and 149˚C) specify Viton Elastomers.
LEGEND:
B
Ductile iron flange adapters
Ductile iron flange adapters
for ANSI 150# flanges.
for ANSI 300# flanges.
250 psi/300 psi
Ductile Iron
Bolt
No.
Size
⁄
8
⁄
5
3
8
4
⁄
8
⁄
5
3
8
4
⁄
8
⁄
5
3
8
4
⁄
8
⁄
3
3
4
4
⁄
12
⁄
3
3
4
4
⁄
12
⁄
3
7
4
8
⁄
16
1
7
8
⁄
16
1
⁄
7
1
8
8
Recommended Bolt
Tightening Procedure
Fig. 4
C
Grooved end with 375 psi
rated pipe coupling.
5.0 FIELD CONVERSION
(Straight to Angle pattern valve):
5.1 Open valve at least one complete turn.
5.2 Remove the body bolts from valve body using Allen Key.
5.3 Rotate one half of the valve body 180˚ making sure the
lower valve seat and "O" Ring stay in position. Inspect the
"O" Ring for any cuts or nicks and replace if necessary.
5.4 Replace body bolts and torque evenly to 70 ft./lbs.
6.0 FLOW MEASUREMENT:
6.1 Where approximate indication of flow is acceptable the
Aurora Triple Duty valve can be used.
6.2 FLOW MEASUREMENT VALVE IN WIDE OPEN
POSITION.
6.21 Measure and record the differential pressure across
the valve using an Aurora CompuFlo Meter with high
pressure range transducer or pressure gauges with PMP
adapters.
CAUTION
Safety glasses should be used and the probe should not
be left inserted into fittings for prolonged periods of time
(overnight, etc), as leakage from the PMP may occur
when probe is removed.
6.22 Refer to Triple Duty Performance Curves with valve in
full open position (Fig 4).
Locate Pressure Differential on left hand side of chart and
extend line horizontally across to valve size being used.
Drop line vertically down and read flow rate from bottom
of chart.
6.3 DETERMINING FLOW RATE WITH VALVE IN
THROTTLED POSITION.
Triple Duty Performance Curve
with Valve in Full Open Position
Fig. 5
7
SECTION 2 ITEM 1040
DATED NOVEMBER 2012
SUPERCEDES MAY 2010
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