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Pressure/temperature

correlation:

1) Connection type

Code 0: Spigot DIN

Code 1: Threaded socket DIN ISO 228

Code 1A: Spigot DIN 11866 series A

Code 1B: Spigot DIN 11866 series B

Code 3C: Threaded socket Rc ISO 7-1, EN 10226-1, JIS B 0203, BS 21, end-to-end dimension ETE DIN 3202-4

series M8

Code 3D: Threaded socket NPT, end-to-end dimension ETE DIN 3202-4 series M8

Code 9: Threaded spigot DIN ISO 228

Code 10: Flange EN 1092, PN 25, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic

series 1

Code 13: Flange EN 1092, PN 25, form B

Code 16: Spigot EN 10357 series B, formerly DIN 11850 series 1

Code 17: Spigot EN 10357 series A (formerly DIN 11850 series 2)/DIN 11866 series A

Code 18: Spigot DIN 11850 series 3

Code 37: Spigot SMS 3008

Code 47: Flange ANSI Class 150 RF

Code 59: Spigot ASME BPE

Code 60: Spigot ISO 1127/EN 10357 series C/DIN 11866 series B

Code 80: Clamp ASME BPE, face-to-face dimension FTF ASME BPE

Code 82: Clamp DIN 32676 series B, face-to-face dimension FTF EN 558 series 1

Code 86: Clamp DIN 32676 series A, face-to-face dimension FTF EN 558 series 1

Code 88: Clamp ASME BPE, face-to-face dimension FTF EN 558 series 1

2) Valve body material

Code 34: 1.4435, investment casting

Code 37: 1.4408, investment casting

Code 40: 1.4435 (F316L), forged body

Code C2: 1.4435, investment casting

Kv values:

DN Butt weld spigot

DIN 11850

Butt weld spigot

DIN 11866

Threaded socket

DIN ISO 228

6 1.6 - -

8 1.8 2.2 -

10 2.4 4.5 4.5

15 2.4 5.5 5.4

20 - 11.7 10.0

25 - 20.5 15.2

32 - 33.0 23.0

40 - 51.0 41.0

50 - 61.0 68.0

65 - 110.0 95.0

80 - 117.0 130.0

Kv values in m³/h

Kv values determined in accordance with EN 60534. The Kv value data refers to control function 1 (NC) and the

largest actuator for each nominal size. The Kv values for other product configurations (e.g. other connection

types or body materials) may differ.

7.4 Product conformity

Food: Regulation (EC) No. 1935/2004*

Regulation (EC) No. 10/2011*

FDA*

* depending on version and/or operating parameters

Pressure Equipment Dir-

ective:

2014/68/EU

Machinery Directive: 2006/42/EC

www.gemu-group.com16 / 46GEMÜ 550

7 Technical data

Brand	GEM
Model	550
Category	Control Unit
Language	English

GEM 550 User Manual

Table of Contents

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Questions and Answers:

GEM 550 Specifications

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