User Guide

Powertop Two-Way Flared Valves Normally Open/Normally Closed Technical Instructions
155-310P25
May 16, 2005
Siemens Industry, Inc. Page 9
Table 8. Valve Assembly Parts and Service Kits. See Figures 3, 4 and 5.
Item Description Qty
Normally Open Normally Closed
Material
Cv 0.5 Cv 1 Cv 2.5 6.3 10 16 Cv 1 Cv 2.5
1 Actuator housing-upper 1 Item 29 Kit Nylon
2 Thread forming screw 8 Items 26 and 29 Kits Steel
3 Diaphragm 1 EP rubber
4 Piston plate 1
Item 29 Kit
Aluminum
5 Actuator compression spring 1 Cad. pl. steel
6 Actuator housing-lower 1 Nylon
7 Stem lock nut 2
—
— — — — — — —
Steel
8 Cap 1 — — — — — — — — Brass
9 Packing washer 1
Item 27 Kit
Copper
10 Stem packing large o-ring 2 EP rubber
11 Stem packing small o-ring 2 EP rubber
12 O-ring retainer 2 Brass
13 Packing ring 1 Teflon®
14 Bonnet 1 — — — — — — — — Brass
15 Stem 1
—
— — — — —
— —
Stainless
Steel
16 Disc holder 1 — — — — — — — — Phos. Bronze
17 Shut-off disc 1 Item 28 Kit EP rubber
18 Throttle plug 1 — — — — — — — — Brass
19 Valve body and seat 1 — — — — — — — —
Stainless
Steel
20
(Figure 3) Tail piece,
Angle Union Outlet only
1
657-276 657-276 657-276 657-115 413-003 657-121 — —
Brass or
Bronze
20 (Figure 4) Washer NC only 1 — — — — — — — — Brass
21
(Figure 3) Union Nut,
Union Outlet only
1
657-094 657-094 657-094 230-117 657-100 609-004 — —
Brass or
Bronze
21
(Figure 4) Retaining nut NC
only
1 — — — — — — — — Brass
22 (Figure 3) O-ring Refer to Items 25 or 26 Kits EP Rubber
22
(Figure 4) Shoulder washer
NC only
1 — — — — — — — — Bronze
23 Valve cap 1 — — — — — — — — Brass
24 O-ring 1 Item 27 and 28 Kits EP rubber
25 Back-up ring 2 Item 27 Kit Teflon
26 Diaphragm kit — 658-166 —
27 Stem packing kit — 658-167 —
28 Shut-off disc kit — 657-800 —
29
Actuator assembly
2 to 6 psi (12 to 41 kPa)
— 658-067 — —
Actuator assembly
10 to 14 psi (60 to 97 kPa)
— 658-068 658-068 —
— Valve body assembly — 658-373 658-312 658-313 658-324 658-312 658-325 658-383 358-384 —