EAGLEBURGMANN
33
Buralloy ring type joint 2961/R
Style R ring type joints are manufactured
in oval (2962/R) and octagonal
profiles (2961/ROK). Both styles are
interchangeable in the modern flat-
bottomed groove. Octagonal profile joints
are interchangeable on flat-bottomed
Buralloy ring type joint 2961/RX
Designed for pressures up to approx.
10,000 PSI (700 bar). This is self-sealing
that uses a pressure-energized effect.
The Style RX ring type joint is manufactured
in accordance with API 6A and ASME B
16.20, to suit API 6B and ASME B 16.5
flanges. The Style RX is designed to fit
the modem flat-bottom groove, and is
interchangeable with the standard Style R
环型关节。何wever, since the Style RX
is significantly taller than a Style R, larger
flange make-up distances will result.
Buralloy ring type joint 2961/BX
The Style BX ring type joint is
manufactured in accordance with API 6A.
All BX ring type joints incorporate a
pressure passage hole to allow for
pressure equalization each side of the
sealing faces. On assembly, metal-to-metal
contact of the flange faces is achieved.
The Style BX is not interchangeable with
any other style and is only suited for
P
B
A
2961/R
H
P
A
23°
2961/ROK
23°
23°
A
P
H
H
P
A
D
23°
2961/BX
P
H
A
D
23°
2961/SBX
Buralloy ring type joints according to the “R” standard
Buralloy ring type joints according to the “RX” standard
Buralloy ring type joints according to the “BX” standard
Tolerances (inches)
A (width of ring)
±0.008
B, H (height of ring)
±0.020
P (average pitch diameter of ring)
±0.007
23° (angle)
±0.5°
Tolerances (inches)
A (width of ring)
+0.008 ... 0.000
B, H (height of ring)
+0.008 ... 0.000
OD (outside diameter of ring)
+ 0.020……0.000
23° (angle)
±0.5°
Tolerances (inches)
A (width of ring)
+0.008 ... 0.000
D(孔大小)
±0.02
H (height of ring)
+0.008 ... 0.000
OD (outside diameter of ring)
+0.000 ... 0.006
23° (angle)
±0.25°
groove flanges which have a 23° angle
groove wall. Style R ring type joints are
designed to seal pressures up to 6,250
PSI (425 bar) in accordance with ASME
B 16.5 ratings and up to 5,000 PSI (340
bar) in accordance with API 6A pressure
ratings.
Style RX ring type joints are designed to
seal pressures up to 6,250 PSI (425 bar)
in accordance with ASME B16.5 pressure
ratings, and up to 5,000 PSI (340 bar) in
accordance with API 6A pressure ratings.
Selected sizes incorporate a pressure
passage hole to allow for pressure
equalization each side of the sealing faces.
API 6BX flanges. Style BX ring type
joints are designed to seal pressures up
to 20,000 PSI (1,360 bar) in accordance
with API 6A pressure ratings. Styles SRX
and SBX are derived from Styles RX and
BX and are produced in line with the API
Standard 17 D for use on subsea wellhead
and Christmas tree equipment.