Siemens Powermite 599 Series Manuale del proprietario

Powermite 599 Series

Technical Instructions

Document No. 155-199P25

VF 599-8

October 24, 2005

MZ Series Zone Control

Three-way Valves

Siemens Industry, Inc.

Description The Powermite 599 Series ANSI Class 250 MZ Series three-way valves are designed to

work the SSB MZ Series actuator with a 7/32-inch (5.5 mm) stroke.

Features Direct coupled universal bonnet

ANSI Leakage Class IV (0.01% of Cv)

Application A typical application for the Powermite three-way valve is the mixing of hot or chilled

water for convectors, fan coil units, unit conditioners, radiation, reheat coils, and similar

terminal units requiring an actuator that delivers a minimum of 45 pounds force (200 N).

Product Numbers Table 1. Product Numbers.

Flow Rate Line Size Product

Cv (Kvs) inch (mm) Number

0.4 (0.34) 1/2 (15) 599-01132

0.63 (0.54) 1/2 (15) 599-01133

1 (0.85) 1/2 (15) 599-01134

1.6 (1.37) 1/2 (15) 599-01135

2.5 (2.15) 1/2 (15) 599-01136

4 (3.44) 1/2 (15) 599-01137

6.3 (5.43) 3/4 (20) 599-01138

10 (8.6) 1 (25) 599-01139

Technical Instructions

Document No. 155-199P25

October 24, 2005

Page 2Siemens Industry, Inc.

Ordering a Valve

Plus Actuator

Assembly

To order a complete valve plus actuator assembly from the factory, combine the

actuator prefix code with the suffix of the valve assembly product number. See

Technical Bulletin (TB) 252 (155-307P25) for selection procedure and ordering codes.

Valve assemblies can be ordered using the numbers in Table 1.

Specifications

Line size 1/2 to 1 inch (15 to 25 mm)

Capacity See Tables 3 and 4 and Figure 1

Body style Globe

Seat style Metal-to-metal

Action Three-way mixing

Valve body rating ANSI Class 250; See Table 2

Stem travel (Stroke) 7/32-inch (5.5 mm)

Material

Body UNS CA844 bronze

or forged brass C37700

Body trim Brass

Stem Stainless steel ASTM A582 Type 303

Packing Ethylene propylene O-ring

Operating Controlled medium Water, glycol solutions to 50%

Medium temperature range 35°F to 250°F (2°C to 120°C)

Maximum inlet pressure See Table 2

Maximum recommended differential pressure

for modulating service 25 psi (173 kPa)

Rangeability

Cv <1 >50:1

Cv >1 >100:1

Close-off pressures See Table 5 and Figure 2

Close-off ratings According to ANSI/FCI 70-2

Leakage rate Class IV (0.01% of Cv)

Flow characteristics Linear

Miscellaneous

Canadian Registration Numbers 0H7645.5

0C0838.9

Mounting location NEMA 1 (interior only)

Dimensions See Tables 6 and 7 and

Figures 4 and 5

Valve Weight See Table 6

Service Kit Protective black knob

to cover the bonnet

and threads

4 268 8895 0

Powermite 599 Series MZ Zone Control Three-way Valves Technical Instructions

Document No. 155-199P25

October 24, 2005

Siemens Industry, Inc. Page 3

Table 2. Body Temperature-Pressure Rating.

Valve

Body Temperature Pressure

psig (kPa)

F° C° ANSI Class 250

Bronze or

Forged Brass

-20 to +150 (-30 to 66) 400 (2758)

+200 (93) 385 (2655)

+250 (121) 365 (2586)

+300 (149) 335 (2300)

+350 (177) 300 (2068)

Table 3. Maximum Water Capacity - U.S. Gallons per Minute.

Valve

Size

inches

Pressure Differential - psi

Cv\1

2 3 4 5 6 8 10 15 20 25 30 40 50 60 75

1/2

0.4 0.6 0.7 0.8 0.9 1.0 1.1 1.3 1.5 1.8 2.0 2.2 2.5 2.8 3.1 3.5

0.63

0.9 1.1 1.3 1.4 1.5 1.8 2.0 2.4 2.8 3.2 3.5 4.0 4.5 4.9 5.5

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

1.6 2.3 2.8 3.2 3.6 3.9 4.5 5.1 6.2 7.2 8.0 8.8 10.1 11.3 12.4 13.9

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

4 5.7 7 8.0 8.9 10 11.3 12.6 15.5 17.9 20.0 21.9 25 28 31 35

3/4 6.3 8.9 10.9 12.6 14.1 15.4 17.8 20 24 28 32 35 40 45 49 55

1 10 14.1 17.3 20 22 24 28 32 39 45 50 55 63 71 77 87

Table 4. Maximum Water Capacity - Cubic Meters per Hour (m3/hr).

Valve

Size

Pressure Differential - kPa

1 10 20 30 40 50 60 80 Kvs/

100 150 200 300 400 500

0.03 0.11 0.15 0.19 0.22 0.24 0.26 0.30 0.34 0.42 0.48 0.59 0.68 0.76

0.05 0.17 0.24 0.30 0.34 0.38 0.42 0.48 0.54 0.66 0.76 0.94 1.08 1.21

0.09 0.27 0.38 0.47 0.54 0.60 0.66 0.76 0.85 1.0 1.2 1.5 1.7 1.9

0.14 0.43 0.61 0.75 0.87 0.97 1.06 1.23 1.37 1.7 1.9 2.4 2.7 3.1

0.21 0.68 0.96 1.17 1.35 1.51 1.66 1.91 2.15 2.6 3.0 3.7 4.3 4.8

0.34 1.1 1.5 1.9 2.2 2.4 2.7 3.1 3.4 4.2 4.9 6.0 6.9 7.7

20 0.54 1.7 2.4 3.0 3.4 3.8 4.2 4.9 5.4 6.7 7.7 9.4 10.9 12.1

25 0.86 2.7 3.8 4.7 5.4 6.1 6.7 7.7 8.6 10.5 12.2 14.9 17.2 19.2

Technical Instructions

Document No. 155-199P25

October 24, 2005

Page 4Siemens Industry, Inc.

Figure 1. Water Capacity Graph.

Selection Example

See Figure 1.

Select a valve given:

Required flow = 20 gpm.

Desired pressure drop = 5 psi.

Choose a 1-inch (25 mm) valve, Cv 10.

Table 5. Close-off Pressures.

Action Valve Size Inches (mm) SSB Actuator

psi (kPa)

Upper port

1/2", 0.4< Cv <1.6

(15 mm, 0.34< Kvs <1.37) 70 (483)

1/2", 2.5< Cv <4

(15 mm, 2.15< Kvs <3.44) 40 (276)

3/4" and 1" (20 mm and 25 mm) 30 (207)

Bottom port

1/2", 0.4< Cv <1.6

(15 mm, 0.34< Kvs <1.37) 25 (172)

1/2", 2.5< Cv <4

(15 mm, 2.15< Kvs <3.44) 15 (103)

3/4" and 1" (20 mm and 25 mm) 10 (69)

Powermite 599 Series MZ Zone Control Three-way Valves Technical Instructions

Document No. 155-199P25

October 24, 2005

Siemens Industry, Inc. Page 5

Figure 2. Close-off Pressures.

Operation As the valve stem moves downward, the flow through the

NO port decreases and the flow through the NC port

increases. As the valve stem moves upward, the flow

through the NO port increases and the flow through the

NC port decreases.

In the event of power failure, a fail-safe actuator returns

the valve to its normal position. Fail-in-place actuators will

hold the last commanded position. See the Technical

Instructions of the various actuators for additional

information.

Figure 3.

Sizing The sizing of a valve is important for correct system operation. An undersized valve will

not have sufficient capacity at maximum load. An oversized valve can initiate cycling,

and the seat and throttling plug can be damaged because of the restricted opening.

Correct sizing of the control valve for actual expected conditions is considered essential

for good control.

The following variables must be determined:

•The medium to be controlled: water, etc.

•The maximum inlet temperature and pressure of the medium at the valve.

•The pressure differential that will exist across the valve under maximum load

demand.

Technical Instructions

Document No. 155-199P25

October 24, 2005

Page 6Siemens Industry, Inc.

Sizing, Continued •The maximum capacity the valve must deliver.

•The maximum line pressure differential the valve actuator must close against.

See Application Bulletin (AB)-1 Control Valve Selection and Sizing (155-285) for further

recommendations.

See Tables 3 and 4 for valve capacities.

Mounting and

Installation Install the valve so that the flow follows the direction of the arrow indicated on the valve

body.

For best performance, install the valve assembly with the actuator above the valve body.

The valve and actuator can be installed in any position between vertical and horizontal.

It is not recommended to install the valve assembly so that the actuator is below

horizontal or up side down.

Allow sufficient space for servicing the valve and actuator. See Table 6 for valve body

dimensions. See Figure 5 and Table 7 for dimensions of the service envelope

recommended around the actuator.

NOTE: Instructions for field mounting an actuator, wiring diagrams, and start-up

are covered in the Technical Instructions and Installation Instructions for

each actuator.

Service Replace the valve if inoperable.

Dimensions See Table 6 for valve body dimensions. The letters in Figure 5 refer to the valve

centerline to top of actuator, the actuator width, and service envelope dimensions in

Table 7.

Figure 4. Three-way Valve.

Table 6. Three-way Valve Dimensions.

Valve Size

inch (mm) A B C Weight

lb (kg)

1/2

(15) 2-3/4

(70) 2-15/16

(74) 1-5/16

(33) 1.10

(0.5)

3/4

(20) 3-1/4

(83) 3-9/16

(90) 1-5/16

(33) 1.44

(.65)

(25) 3-7/8

(98) 3-15/16

(99) 1-9/16

(39) 2.20

(1.0)

Powermite 599 Series MZ Zone Control Three-way Valves Technical Instructions

Document No. 155-199P25

October 24, 2005

Siemens Industry, Inc. Page 7

Figure 5.

Table 7. Dimensions of the Actuator and Recommended Service Envelope.

Dimensions in Inches (Millimeters).

Actuator Actuator

Prefix

Code

Valve

line Size Center line to

Top of

Actuator, H1

Service

Height

Actual width of

the Actuator

Service

Width

SSB

254

255

1/2 (15) 4-7/8 (124) 13-1/8 (330) 3-1/4 (83) 11-1/4 (282)

3/4 (20) 4-7/8 (124) 13-1/8 (330) 3-1/4 (83) 11-1/4 (282)

1 (25) 5-1/8 (130) 13-3/8 (335) 3-1/4 (83) 11-1/4 (282)

Technical Instructions

Document No. 155-199P25

October 24, 2005

Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as

design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners.

Siemens Industry, Inc.

Building Technologies Division

1000 Deerfield Parkway

Buffalo Grove, IL 60089

+ 1 847-215-1000

Your feedback is important to us. If you have

comments about this document, please send them

to sbt_technical.editor.us.sbt@siemens.com

Document No. 155-199P25

Printed in the USA

Page 8

Parts Of The Valve

Table 8. Three-way Bronze/Forged Brass Valves.

Item Part Name Part No. Q’ty Material

1 Bonnet Ass’y — 1 —

2 Spring — 1 Stainless steel

3 Wiper — 1 Nylon

4 Valve Body — 1 Bronze or

Forged Brass

5 Stem and Plug

Assembly — 1 Stainless steel

or brass

6 Upper guide disc — 1 Brass

7 Retaining ring — 1 Stainless steel

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