Emerson Penberthy K2C Kurulum, Çalıştırma ve Bakım Talimatları - Sayfa 3
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Sayfayı Yazdır
Penberthy SerieS N2/K2 Tubular gagecocKS
InstallatIon, operatIon and maIntenance InstructIons
3 aVaIlable MOdels
Tubular gagecock standard features are listed in
the table below:
table 1
Model
offset pattern
integral bonnet
union bonnet
Stuffing box connection
Screwed in seat
integral seat
table 2 - desIGn ratInGs at MaxIMuM and MInIMuM OPeratInG teMPeratures
Gagecock series
Material of construction
N2a
carbon
K2a
steel
316 STS
N2b
carbon
N2c
steel
K2b
316 STS
K2c
Pressure/temperature ranges in the table above are subject to the limitations of the tubular glass.
See Table 3 below.
table 3 - tubular glass - ratings ⅝" (16 mm) and ¾" (19 mm) Od
Center to center distance for vessel
connections
Inches [mm]
10 [254]
15 [381]
20 [508]
25 [635]
30 [762]
35 [889]
40 [1016]
45 [1143]
50 [1270]
55 [1397]
60 [1524]
65 [1651]
70 [1778]
N/a - Not available
warnInG
NEVER exceed these design ratings or application
data. Exceeding design ratings or
application data may result in mechanical failure
of gagecock components resulting in serious
personal injury or property damage.
3.1 design ratings at maximum and minimum
operating temperatures (see table 2)
To determine the maximum allowable working
pressure for a specific temperature within
the design limits stated below, the user must
refer to relevant technical data sheets or, when
n2
K2
provided, the specifically stated design limits on
a product proposal.
X
X
X
X
X
X
X
X
PtFe packing
675 psig [4650 kPa] at -20°F [-29°c] to 100°F [38°c]
555 psig [3830 kPa] at 500°F [260°c]
675 psig [4650 kPa] at -300°F [-184°c] to 100°F [38°c]
555 psig [3830 kPa] at 500°F [260°c]
750 psig [5170 kPa] at -20°F [-29°c] to 100°F [38°c]
610 psig [4210 kPa] at 500°F [260°c]
750 psig [5170 kPa] at -300°F [-184°c] to 100°F [38°c]
610 psig [4210 kPa] at 500°F [260°c]
no corrosion up to 150°F [66°C]
high pressure
410 [2830]
385 [2650]
355 [2450]
300 [2070]
275 [1900]
240 [1650]
210 [1450]
200 [1380]
180 [1240]
150 [1030]
140 [970]
125 [860]
100 [690]
3.2 steam application
Penberthy series N2 and K2 gagecocks are
designed for process conditions. in low pressure
steam/water applications (< 350 psig [2410 kPa]
at 434°F [223°c], the use of N2 and K2 series
gagecocks is allowed because the potential
mechanical stress imposed on the gagecock
assembly by the thermodynamic steam
environment is relatively small.
Maximum allowable working pressure
heavy wall
red line
psig (kPa)
600 [4140]
340 [2340]
600 [4140]
310 [2140]
600 [4140]
285 [1960]
580 [4000]
260 [1790]
550 [3790]
230 [1590]
500 [3450]
200 [1380]
420 [2890]
180 [1240]
360 [2480]
170 [1170]
340 [2340]
160 [1100]
N/a
140 [970]
N/a
120 [830]
N/a
100 [690]
N/a
90 [620]
Grafoil
packing
®
675 psig [4650 kPa] at -20°F [-29°c] to 100°F [38°c]
400 psig [2760 kPa] at 750°F [399°c]
675 psig [4650 kPa] at -300°F [-184°c] to 100°F [38°c]
400 psig [2760 kPa] at 750°F [399°c]
750 psig [5170 kPa] at -20°F [-29°c] to 100°F [38°c]
450 psig [3100 kPa] at 750°F [399°c]
750 psig [5170 kPa] at -300°F [-184°c] to 100°F [38°c]
450 psig [3100 kPa] at 750°F [399°c]
steam boiler service up to 425°F [218°C]
high pressure
heavy wall
psig (kPa)
310 [2140]
345 [2380]
280 [1930]
325 [2240]
265 [1830]
315 [2170]
250 [1720]
300 [2070]
Not recommended
red line
275 [1900]
265 [1830]
260 [1790]
250 [1720]
3