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Powermite 599 Series

Technical Bulletin

Document No. 155-307P25

TB 252

February 9, 2018

MZ Series Zone Control Valve and Actuator Assembly

Selection

Siemens Industry, Inc.

Description

This Technical Bulletin will aid in selecting a Powermite 599 MZ Series zone control

valve and actuator assembly. Begin with the graph of water capacity and the chart of

close-off pressures to select a valve and actuator according to specificat

ions. Use Table

1 to identify product numbers.

Table 1 shows all the possible combinations of the Powermite 599 Series valves and

compatible actuators that can be ordered as complete valve assemblies from the

factory.

The dimensions of all valves and the service envelope required for each actuator are

included in Tables 2 through 4.

How To Use The

Selection Graphs

Use Figure 1, the water capacity graph, to select a valve. Locate the specified flow rate

on the vertical axis. Follow across on the horizontal line to the point of intersection with

the specified pressure drop. Chose the valve size from the heavy diagonal lines across

the graph.

Use Figure 2, the close-off pressure graphs, to select an actuator. First locate the graph

for the valve action specified. Locate the bar that represents the valve line size. The top

of the bar indicates the maximum close-off pressure for tight close-off.

How To Use The

Valve Tables

Table 1 has been organized to help select a valve and actuator combination using

additional specifications.

Moving from left to right, identify the valve assembly needed. Continue to the right to

match the valve to a desired actuator.

A valve and actuator assembly part number is determined by combining the actuator

prefix code with the suffix of the valve product number.

No valve will combine with all actuators. The symbol “—

” indicates a combination that is

a special order. A shaded space indicates an inappropriate combination.

Selection Example

Select a two-way, normally closed, female by female NPT threaded valve and actuator

assembly for an ANSI 250 piping system that will deliver 20 gpm (4.5 m

h) chilled

water with no more than 5 psi (35 kPa) pressure drop across the fully open valve.

Specification

The valve shall be operated by a 24 Vac powered, three-position control signal, fail-in-

place electronic actuator, and must close off tightly against a pump head pressure of

15 psi (1 bar).

Summary of content (6 pages)

PAGE 1
Technical Bulletin Document No. 155-307P25 TB 252 February 9, 2018 Powermite 599 Series MZ Series Zone Control Valve and Actuator Assembly Selection Description This Technical Bulletin will aid in selecting a Powermite 599 MZ Series zone control valve and actuator assembly. Begin with the graph of water capacity and the chart of close-off pressures to select a valve and actuator according to specifications. Use Table 1 to identify product numbers.
PAGE 2
Technical Bulletin Document No. 155-307P25 February 9, 2018 Valve Sizing Use Figure 1, the water capacity graph, to begin valve sizing. 3 1. Locate 20 gpm (4.5 m /h) on the vertical axis to find the required flow. 2. Read across the horizontal axis to find 5 psi (35 kPa), the maximum allowable pressure drop across the open valve. Select a 1-inch (25 mm) 10 Cv (8.5 Kvs) line size valve because the point of intersection falls close to the 1-inch line.
PAGE 3
Powermite 599 MZ Series Zone Control Valve and Actuator Assembly Selection Technical Bulletin 155-307P25 February 9, 2018 Figure 1. Water Capacity Graph. Two-way Three-way Figure 2. Maximum Available Close-off Pressures. Siemens Industry, Inc.
PAGE 4
Technical Bulletin Document No. 155-307P25 February 9, 2018 Table 1. MZ Series 1/2- to 1-inch Valves.
PAGE 5
Powermite 599 MZ Series Zone Control Valve and Actuator Assembly Selection Technical Bulletin 155-307P25 February 9, 2018 Dimensions Figure 3. Table 2. Dimensions of the Actuator and Recommended Service Envelope.
PAGE 6
Technical Bulletin Document No. 155-307P25 February 9, 2018 Table 3. Three-way Valve Dimensions. Valve Size inch (mm) 1/2 (15) A B C 2-3/4 (70) 2-15/16 (74) 1-5/16 (33) Weight lb (kg) 1.10 (0.50) 3/4 (20) 3-1/4 (83) 3-9/16 (90) 1-5/16 (33) 1.44 (0.65) 1 (25) 3-7/8 (98) 3-15/16 (99) 1-9/16 (39) 2.20 (1.0) Female NPT × Female NPT Female NPT × Union Male Angle Female × Union Male FxF FxUM AFxUM Table 4. Two-way Valve Dimensions.