User Guide

ManualsBrandsSiemens ManualsControl Valves1/2" 2-Way N/C Brass Equal Percentage Valve Body, Female x Female (2.5 Cv)

Flowrite 599 Series Two-Way Valves, 1/2 to 2-Inch, Bronze Body, ANSI 250 Technical Instructions

Document Number 155-184P25

August 25, 2009

Siemens Industry, Inc. Page 9

Table 8. Maximum Available Close-off Pressures for Pneumatic Actuators, with Normally Open Valves.

Action

Valve

Size

Inch

(mm)

Spring Range

3 to 8 psi ( 21 to 55 kPa)

10 to 15 psi (69 to 103 kPa)

4-Inch

Actuator

8-Inch Actuator 12-Inch Actuator

4-Inch

Actuator

8-Inch

Actuator

12-Inch

Actuator

15 psi

(103 kpa)

15 psi

(103 kpa)

30 psi

(207 kPa)

15 psi

(103 kpa)

30 psi

(207 kPa)

0 psi

(0 kPa)

0 psi

(0 kPa)

0 psi

(0 kPa)

Normally Open

1/2 (15)

142 (979) 250 (1724) 250 (1724) — — — — —

3/4 (20)

80 (552) 231 (1593)

250 (1724)

— — — — —

1 (25)

52 (359 150 (1034)

250 (1724)

— — —

1-1/4 (32)

32 (221) 93 (641)

250 (1724)

— — —

1-1/2 (40 )

20 (138) 60 (414) 198 (1365)

205(1413)

250 (1724)

— — —

2 (50)

12 (83) 37 (255) 123 (848) 130 (896) 250 (1724) — — —

Normally Closed

1/2 (15)

— — — — — 236 (1627)

250 (1724)

—

3/4 (20)

— — — — —

155 (1069) 250 (1724)

—

1 (25)

— — — — —

91 (627) 250 (1724)

250 (1724)

1-1/4 (32)

— — — — —

52 (359) 148 (1020) 250 (1724)

1-1/2 (40 )

— — — — —

32 (331) 92 (634) 250 (1724)

2 (50)

— — — — —

20 (138) 55 (379) 185 (1776)

Table 9. Close-off Pressures for Electronic Actuators.

Action

Valve

Size

Inches

(mm)

SQX

psi (kPa)

Rack &

Pinion

SKD

psi (kPa)

SKB

psi (kPa)

Normally Open

1/2 (15) 250 (1724) 250 (1724) 250 (1724) 250 (1724)

3/4 (20) 173 (1193) 231 (1593) 250 (1724) 250 (1724)

1 (25) 112 (772) 149 (1028) 201 (1386) 250 (1724)

1-1/4 (32) 69 (476) 92 (634) 124 (855) 250 (1724)

1-1/2(40) 44 (303) 59 (407) 80 (552) 250 (1724)

2 (50) 27 (186) 36 (248) 49 (338) 201 (1386)

Normally Closed

1/2 (15) 250 (1724) 250 (1724) 250 (1724) 250 (1724)

3/4 (20) 221 (1524) 250 (1724) 250 (1724) 250 (1724)

1 (25) 130 (896) 173 (1193) 203 (1400) 250 (1724)

1-1/4 (32) 75 (517) 100 (690) 117 (807) 250 (1724)

1-1/2(40) 46 (317) 61 (421) 73 (503) 208 (1334)

2 (50) 28 (193) 37 (255) 44 (303) 126 (869)