Siemens VVG44.15-1U, VVG44.15-1S, VVG44.15-1.6U, VVG44.15-1.6S, VVG44.15-2.5U Technical Instructions

VE VVG Series

Technical Instructions

Electronic Two

-

way Valves

Normally Closed

Document No. 155-112P25

VE VVG-1

Rev. 3 August, 2002

Description

Features

Application

The VE VVG electronic two-way valves control the flow of water or glycol solutions. The
electronic actuator requires a 24 Vac supply and receives a 0 to 10 Vdc cont rol signal
to control the 7/32-inch (5.5 mm) nominal stroke valve.

• Maintenance free actuator with reversible motor.

• Selector plug on actuator permits selection of linear or equal percentage flow

characteristics.

• Reduced seat diameter produces reduced Cv (Kvs) in 1/2-inch valve bodies.

• 0 to 10 Vdc or 0 to 1000 ohms signal input.

• Position output signal 0 to 10 Vdc.

• Available with union or sweat end connect ions (1/2-inch and 3/4-i nch).

• Double O-ring packing with Teflon® wiper.

• Manual override knob with indication of stroke allows for repositioning of the valve

in power-off condit ions (SQS65U only).

• Spring return closes f low port i n power-of f condition (SQS65.5U only).
Use the VE VVG as a control and shutoff valve in small to medium HVAC installations

for hot water and chill ed water applications. Use in closed circ uits only.

NOTE: This valv e is not designed for steam applications. See valve body

specifications for details.

Product Numbers
and Ordering
Information

Order the valve and actuator separately. See Table 1 for product information.

Siemens Industry, Inc.

VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Product Numbers
and Ordering
Information,
Continued

Table 1. Product Information.

Nominal

Valve Size

Inches

(mm)

1/2 (15) 0.47 (0.4) VVG44.15-0.4U VVG44.15-0.4S SQS65U SQS65.5U 50 232 (1600) 58 (400)
1/2 (15) 1.17 (1) VVG44.15-1U VVG44.15-1S SQS65U SQS65.5U 50 123 (850) 58 (400)
1/2 (15) 1.87 (1.6) VVG44.15-1.6U VVG44.15-1.6S SQS65U SQS65.5U 100 123 (850) 58 (400)
1/2 (15) 2.92 (2.5) VVG44.15-2.5U VVG44.15-2.5S SQS65U SQS65.5U 100 58 (400) 58 (400)
1/2 (15) 4.68 (4) VVG44.15-4U VVG44.15-4S SQS65U SQS65.5U 100 58 (400) 58 (400)
3/4 (20) 7.37 (6.3) VVG44.20-6.3U VVG44.20-6.3S SQS65U SQS65.5U 100 116 (800) 58 (400)
1 (25) 11.7 (10) VVG44.25-10U - - - SQS65U SQS65.5U 100 585 (400) 43.5 (300)
1-1/4 (32) 18.7 (16) VVG44.32-16U - - - SQS65U SQS65.5U 100 32 (225) 29 (200)
1-1/2 (40) 29 (25) VVG44.40-25U - - - SQS65U SQS65.5U 100 14.5 (100) 14. 5 (10 0)

Max ∆ P * = Maxi mum rec ommend ed differential pr essure for modulating ser vice.

Specifications

Actuator

Power Requirement s

Cv (Kvs) Valve Prod uct Number Actuator Pr od uct Number Spring & Non-Spring Retur n

Union Sweat Non-

Spring
Return

Spring Return Range-

Ability

Close-Off

psig (kPa)

Max ∆ P *

psig (kPa)

Operating Voltage
60 Hz 24 Vac, +20%, -15%
50 Hz 24 Vac, ± 20%

Power Consumpti on
SQS65U 4.5 VA
SQS65.5U 7 VA

Functional Operation Running Time

At 60 Hz 30 seconds
At 50 Hz 35 seconds

Spring Return (SQS65.5U only) ≈8 seconds
Nominal Strok e 7/32-inch (5.5 mm)
Nominal Force 67 lbs. (300 N)

Control Characteristics Control Signal (Y )

Voltage 0 to 10 Vdc
Current 0.1 mA
Input Impedance 100K ohms

Control Signal (R)
Resistance 0 to 1000 ohms

Position Output (U)
Voltage 0 to 10 Vdc
Current 0.5 mA maximum

Flow Characteristic Linear or equal percentage

Environmental Conditions Ambient Temperature

Operating 5°F to 122°F (-15°C to 50°C)
Transport and storage -13°F to 149°F (-25°C to 65°C)

Physical Characteristics Weight

SQS65U 1.1 lbs. (0.5 kg)
SQS65.5U 1.3 lbs. (0.6 kg)

Dimensions See Figure 6

Page 2 Siemens Industry, Inc.

VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Specifications,
Continued

Body Style Globe
Body Bronze
Connections Union with brass nut, composi te

Valve

Composition

gasket, forged bronze tail piece with
internal NPT
or
Sweat end for use in 7/8-inch
ODcopper tubi ng

Trim
1/2-inch and 3/4-inch Stainless Steel
1-inch to 1-1/2 inch Bronze

Packing Double O-ring
Body Rating ANSI 125 (PN 16)

Operating Conditions Line Size/Capacity See Tables 1 and 2

Medium Water, glycol to 50%
Rangeability See Table 1
Flow Characteristics II to I Field selectable. See Start-up section.
Leakage Rate 0.02% of Cv
Medium Temperature 36 to 248°F (2 to 120°C)
Maximum Inlet Pressure 232 psig (1600 kPa)
Maximum Pressure Differential for

Modulating Service See Table 1
Close-Off Press ure See Table 1

Agency Approvals

UL UL873
C-UL Certified to Canadian

Standards
CSA C22.2 No. 24-93

Physical Characteristics Weight See Figure 6

Dimensions See Figure 6

Table 2. Maximum Water Capacity — US Gallons per Minute.

Valve

Cv

1/2 (15) 0.47 (0.4) 0.66 0.94 1.15 1.32 1.48 1.81 2.09 12.34 2.56 2.96 3.31
1/2 (15) 1.17 (1.0) 1.65 2.34 2.87 3.31 3.70 4.53 5.23 5.85 6.41 7.40 8.27
1/2 (15) 1.87 (1.6) 2.65 3.74 4.59 5.29 5.92 7.25 8.37 9.36 10.25 11.84 13.24
1/2 (15) 2.92 (2.5) 4.14 5.85 7.16 8.27 9.25 11.33 13.08 14.63 16.02 18.50 20.68
1/2 (15) 4.68 (4.0) 6.62 9.36 11.46 13.24 14.80 18.13 20.93 23.40 25.63 29.60 33.09
3/4 (20) 7.37 (6.3) 10.42 14.74 18.06 20.85 23.31 28.55 32.96 36.86 40.37 46.62 —

1 (25) 11.7 (10) 16.55 23.40 28.66 33.09 37.0 45.31 52.32 58.5 64.08 — —
1-1/4 (32) 18.7 (16) 26.47 37.44 45.85 52.95 59.2 72.5 — — — — —
1-1/2 (40) 29 (25) 41 58 71 82 91 112 — — — — —

Siemens Industry, Inc. Page 3

Kvs 2 4 6 8 10 15 20 25 30 40 50

1

Pressure Differential (psi)