Cascade and Super Cascade Trims - Copes-Vulcan - #2

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Features
Caging guiding, a Copes-Vulcan standard, includes a seating angle of 30° on the plug and 32° in the cage seat. Seat contact width is approximately .025" (.635mm). The valve actuator is selected to produce exceptionally tight seating under actual operating conditions. The high force produces a slight deforma­tion of the seating surfaces, ensuring tight shutoff. The cage and plug are made of ASTM A-276, Type 420 stainless steel with Rockwell C-43 to C-47 hardness, ASTM A-351 Type 316 stainless steel with optional hardfacing and 17-4PH.
Cv/Kv Factors
(For Estimating Purposes Only) Cascade Trim
This material is highly resistant to erosion and has proven most suitable for the service. Tolerance controlled machining and well defined quality control measures ensure consistent conformance to Copes-Vulcan engineering specifications.
Cascade Trim has been fully tested and has many years of proven and successful service. On one test, conducted in a test loop of a major utility, it was operating only .05" (1.3mm) off the seat, with 300-350°F (149-177°C) water
and 4400 psi (30,320 kPa) differential, for over one year. Upon inspection, the seating surfaces were still undamaged and the trim was kept in service. Other manufacturers' designs utilizing the same Type 420 stainless steel were also sampled under the same conditions. Maximum service gained from the other designs ranged from a few days to three months.
Valve Size
Trim Size
1" 25mm
1.5" 40mm
2" 50mm
2.5" 65mm
3" 80mm
4" 100mm
5" 125mm
6" 150mm
1" 25mm
14 12
1.5" 40mm
15.4 13.3
22 19
N
ot Availa
ble
2" 50mm
16 14.0
24.2 20.9
36.6 31.7
2.5" 65mm
16.2 14.0
25.1 21.7
40.3 34.9
63.6 55.0
3" 80mm
16.2 14.0
25.5 22.1
41.8 36.2
70 60.6
86.9 75.2
4" 100mm
16.2 14.0
25.5 22.1
42.5 36.8
72.3 62.5
95.6 82.7
149 129
5" 125mm
16.2 14.0
25.5 22.1
42.5 36.8
73.5 63.6
99 86
164 142
265 229
6" 150mm
42.5 36.8
73.5 63.6
101
87
169 146
292 253
387 335
8" 200mm
42.5 36.8
73.5 63.6
101
87
172 149
301 260
425 368
10" 250mm
Specials
73.5 63.6
101
87
172 149
307 266
442 382
12" 300mm
101
87
172 149
307 266
449 388
Full Travel
1.5" 40mm
1.5" 40mm
1.5" 40mm
2" 50mm
2" 50mm
2.5" 65mm
3" 80mm
3" 80mm
P2 = 800 psi (5510 kPa)
psi
800 1500 2200 2900 3600 4300
5000
kPa
5510
10340
15160
19980 24800 29630 34450
P1 = 5000 psi (34450 kPa)
Area in bold lines indicates product within standard delivery cycle. For Numbered Cascade Trim, see Bulletin135.
FLOW ---
Theoretical Pressure Drop
Super Cascade Trim
Trim
.75
.875
1
1.125
1.25
1.5
1.75
2
2.25
2.5
3
3.5
Size
20
25
25
30
35
40
45
50
60
65
75
90
Min. Body
1
1.5
2
2.5
3
4
Size
25
40
50
65
75
100
Cv
2.5
3.1
3.7
4.2
4.7
5.6
6.8
11.5
13.1
20
23
27
Kv
2.2
2.7
3.2
3.6
4.1
4.8
5.9
9.9
11.3
17
20
23
Full
.9375
1.8125
1.875
Travel
25
45
50
Inches Millimeters
Sales and Service
For information about our worldwide locations, approvals and certifications, and local representatives, please visit our web site.
Web Site: www.spxvalves.com E-Mail: info@spxvalves.com
VALVES & CONTROLS"
250 Riverside Ave. N. Sartell, Minnesota 56377-1743 Telephone: 320-259-2000 Fax: 320-259-2227
SPX Valves & Controls reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only and should not be relied upon unless confirmed in writing by SPX Valves & Controls. Certified drawings are available upon request.
Printed in the U.S.A. 010302

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