Page 13 - Oil & Gas Final

13.594
12.083 2
10.573 1.78
9.062 1.58
7.552 1.33
6.042 1.11
4.531 0.89
3.021 0.67
1.510 0.44
0 0.22
velocity (m/s) 0
pressure (bar)

Fig. 6 – CFD showing the velocity reduction inside the trim (VP2 G). Fig. 7 – CFD showing the pressure reduction inside the trim VP2 G.

5.9E+005 800
Static pressure <Pa> (MIN: 497518, MAX 5887 5.6E+005 700 Cv ISA 75.02
5.8E+005
5.7E+005
5.5E+005
600
5.4E+005
500
5.3E+005
400
5.2E+005
Cv ISA 39.2
5.1E+005
200
5.E+005
4.9E+005 300
100
0 50 100 150 200 250 300 350
Parametric Distance <millimeter> (min: 0, max: 310,882) 0
0 20 40 60 80
Curve legend 15m3_hx2
Fig. 8 – Step-wise pressure drop curve inside the body cavity. Fig. 9 – CV curve of a DN 100 valves with 90° V-ball.

Fig.10 – 90°, 60° and 30°-60° V-Shape.

Valve design & trims available

Trunnion Floating Patterns customized on process parameters are
Rating 150/300/600 Rating 150/300 (PN/40) available, as well as on pressure classes not mentioned
SIZE SIZE on the present standard table.
3” • • • 1/2” • •
4” • • • 3/4” • • Valpres control ball valves can be supplied with
6” • • • 1” • •
8” • • 1”1/2 • • pneumatic, electric or hydraulic actuators and electro-
10” • • 2” • • pneumatic or SMART positioner, sourced from main
12” • • 3” • • • approved suppliers in the Oil&Gas market. For valves
14” • • 4” • • •
16” • • 6” • • • up to 8” 600# Valbia’s rack and pinion pneumatic
18” • • actuators may be used (see also Valbia catalogue or
20” • • • VP0 TRIM www.valbia.it).
24” • • • VP-VBALL TRIM
30” • • • VP1-VP2 TRIM
36” • • For 900#, 1500#, 2500# valves contact BONOMI UK sales office.
40” • • Customized trims available upon request.
42” • •
48” • •

13