User Guide

ManualsBrandsSiemens Manuals658 Series Globe Valves658 Powertop 2-Way 1-1/4" Normally Open Flared Valve, 2-6 psi 16 cv

Siemens Industry, Inc.

Powers™ Controls

Technical Instructions

Document No. 155-310P25

VP 658-5

May 16, 2005

Powertop Two-Way Valves

Normally Open/Normally

Closed

Description

The VP 658 normally open and normally closed flared valves are pneumatically operated

valves designed to control the flow of both water and steam.

Features

• Stainless steel valve stem for smooth operation and durability

• Large diaphragm area for control accuracy and tight close-off

• Equal percentage plugs and long stroke for controllability

• Removable actuator for ease of servicing

Application

The VP 658 flared valves are recommended for control of hot or chilled water and steam for

terminal units such as unit ventilators, reheat coils, fan coil units, induction units, and duct

coils.

They are particularly suited to the minimum profile and low space requirements of schools,

hospitals, office buildings and factories.

Product Numbers

See Tables 1 and 2.

Table 1. Normally Open.

Valve

Size

Inch (mm)

Spring

Range

PSI (kPa)

(Kvs)

Product

Number

.50 (15)

2 to 6 (12 to 41)

1.0 (0.85)

658-0004

658-0007

2.5 (2.14)

658-0005

658-0008

.75 (20) 6.3 (5.4) 658-0010

1.0 (25) 10 (8.6) 658-0012

1.25 (32) 16 (13.7) 658-0014

.50 (15)

10 to 14 (69 to 97)

1.0 (0.85)

658-0062

658-0064

2.5 (2.14) 658-0063

658-0065

.75 (20) 6.3 (5.4) 658-0067

1.0 (25) 10 (8.6) 658-0069

1.25 (32) 16 (13.7) 658-0071

Summary of content (10 pages)

PAGE 1
Technical Instructions Document No. 155-310P25 VP 658-5 May 16, 2005 Powers™ Controls Powertop Two-Way Valves Normally Open/Normally Closed Description The VP 658 normally open and normally closed flared valves are pneumatically operated valves designed to control the flow of both water and steam.
PAGE 2
Technical Instructions Document No. 155-310P25 May 16, 2005 Powertop Two-Way Flared Valves Normally Open/Normally Closed Table 2. Normally Closed. Valve Size Inch (mm) Spring Range PSI (kPa) .50 (15) 10 to 14 (69 to 97) Cv (Kvs) Product Number 1.0 (0.85) 658-0085 2.5 (2.14) 658-0043 Stem travel Valve body rating Inches (mm) .50 (15) .75 (20) 1.0 (25) 1.25 (32) See Tables 3 through 6 Globe-flared, Angle Union Outlet Glob-flared, Angle Union Outlet Normally Open (NO) Normally Closed (NC) .
PAGE 3
Powertop Two-Way Flared Valves Normally Open/Normally Closed Miscellaneous Service Kits Dimensions Weight NO NC Technical Instructions 155-310P25 May 16, 2005 See Figures 6, 7 and 8 3 lb (1.4 kg) 4 lb (1.8 kg) Diaphragm replacement kit (package of 5) Repack kit (for 10 valves) Shut off disc kit (package of 10) Actuator assembly NO (2 to 6 psi) NO/NC (10 to 14 psi) 658-166 658-167 657-800 658-067 658-068 Valve body assembly Normally Open: Cv (Kvs) Part Number 1.0 (0.85) 658-312 2.5 (2.
PAGE 4
Technical Instructions Document No. 155-310P25 May 16, 2005 Powertop Two-Way Flared Valves Normally Open/Normally Closed Table 3. Maximum Water Capacity - U.S. Gallons per Minute. Valve Size Cv\1 Inches Pressure Differential - psi 2 3 4 5 6 8 10 15 20 25 30 40 50 60 75 1.0 1.4 1.7 2.0 2.2 2.5 2.8 3.2 3.9 4.5 5.0 5.5 6.3 7.1 7.8 8.7 2.5 3.5 4.3 5.0 5.6 6.1 7.1 7.9 9.7 11.2 12.5 13.7 15.8 17.7 19.4 22 .75 6.3 9.
PAGE 5
Powertop Two-Way Flared Valves Normally Open/Normally Closed Technical Instructions 155-310P25 May 16, 2005 Table 6. Steam Capacity - Kilograms per Hour. Inlet Pressure - kPa Valve Size in mm 50 Pressure Differential – kPa Kvs 15 20 25 32 100 0.85 2.15 5.4 8.6 13.7 10 25 10 20 50 4.3 6.8 6.04 8.54 14 10.7 17 15 21 34 27.1 42.8 38 54 85 43 68 60 85 135 68.8 109 97 137 216 Table 7. Body Temperature-Pressure Rating.
PAGE 6
Technical Instructions Document No. 155-310P25 May 16, 2005 Powertop Two-Way Flared Valves Normally Open/Normally Closed Warning/Caution Notations Operation WARNING: Personal injury/loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage may occur if you do not follow procedure as specified. The actuator spring provides the necessary force to hold the stem in the raised or normal position.
PAGE 7
Powertop Two-Way Flared Valves Normally Open/Normally Closed Technical Instructions 155-310P25 May 16, 2005 Service Diaphragm replacement Instructions for replacement are included in the kit. Stem packing Instructions for repacking the valve stem are included in the kit. Valve disc replacement Instructions for replacing the valve disc are included in the kit. Actuator replacement Figure 2. Actuator Replacement. 1. Loosen the two lower housing screws that clamp it to the bonnet. 2.
PAGE 8
Technical Instructions Document No. 155-310P25 May 16, 2005 Powertop Two-Way Flared Valves Normally Open/Normally Closed Parts of the Valve Assembly Figure 4. Angle Union Outlet, Normally Open. Figure 3. Normally Open. Insert Detail Figure 5. Normally Closed. Page 8 Siemens Industry, Inc.
PAGE 9
Powertop Two-Way Flared Valves Normally Open/Normally Closed Technical Instructions 155-310P25 May 16, 2005 Table 8. Valve Assembly Parts and Service Kits. See Figures 3, 4 and 5. Normally Open Item Description Normally Closed Qty Material Cv 0.5 Cv 1 Cv 2.5 6.3 10 16 Cv 1 Cv 2.
PAGE 10
Technical Instructions Document No. 155-310P25 May 16, 2005 Powertop Two-Way Flared Valves Normally Open/Normally Closed Dimensions Figure 6. Normally Open. Figure 7. Normally Closed. Figure 8. Angle Union Outlet, Normally Open. Table 9. Dimensions in Inches (Millimeters). Valve Body Valve Size Inch (mm) A B C D Normally Open .50 (15) 5.50 (140) 5.25 (133) 1.00 (25) 2.00 (51) Normally Closed .50 (15) 5.50 (140) 5.25 (133) 1.94 (33) 2.00 (51) .50 (15) 5.50 (140) 5.00 (127) 1.