Richter NKLP-C Series Butterfly Valves - Manual (Page 2)

Series NKS-C, NKSP-C, NKL-C, NKLP-C
Page 2
9520-072-en Revision 03
TM 8668 Edition 10/2012
List of Contents
List of Contents......................................... 2
Relevant documents ................................. 3
1 Technical data ...................................... 3
1.1 Overview of sizes ....................................... 4
1.2 Type codes ................................................ 4
1.3 Name plate, CE and body markings ........... 5
1.4 Tightening torques ..................................... 6
1.5 Dimensions - Installation ............................ 8
1.6 Flow rate value kv [m³/h] ........................... 8
1.6.1 Disc/stem unit PFA-lined ................................... 8
1.6.2 Disc/stem unit stainless steel, Hastelloy, Titan . 9
1.7 Weights (ca. kg) ........................................ 9
1.8 Breakaway torques .................................. 10
1.9 Cavitation coefficient z for 75% duty ......... 10
1.10 Pressure-temperature-diagram ................. 10
2 Notes on safety .................................. 11
2.1 Intended use ............................................ 11
2.2 For the customer / operator ...................... 11
2.3 Improper operation ................................... 11
3 Safety notes for applications in
potentially explosive areas based on
the Directive 94/9/ EC (Atex 95) ........ 12
3.1 Intended use ............................................ 12
4 Safety note for valves, certified to
Clean Air Act (TA-Luft) ...................... 13
5 Transport, storage and disposal ...... 13
5.1 Storage .................................................... 13
5.2 Transport preparations ............................. 13
5.3 Return consignments ............................... 13
5.4 Transport securing device ........................ 13
5.5 Disposal ................................................... 14
6 Installation .......................................... 14
6.1 Installation possibilities ............................. 14
6.2 Flange caps and gaskets.......................... 14
6.3 Direction of flow and installation position . 14
6.4 Installation................................................ 14
6.4.1 Additional advice for shut-off and control
butterfly valve with actuator ............................. 14
6.5 Earthing ................................................... 14
7 Operation............................................ 15
7.1 Initial commissioning................................ 15
7.2 Improper operation and their consequences
............................................................ 15
7.3 Shutdown ................................................ 15
7.3.1 Additional advice for shut-off and control
butterfly valve with actuator ............................ 15
8 Malfunctions ...................................... 16
9 Maintenance ....................................... 16
9.1 Notes for assembly .................................. 16
9.2 Valve actuation ........................................ 17
9.2.1 Actuated with lever .......................................... 17
9.2.2 Actuated by means of worm gear ................... 17
9.2.3 Remotely actuated .......................................... 17
9.2.4 Required breakaway torque............................ 17
9.3 Tests ....................................................... 17
10 Drawings ............................................ 18
10.1 Legend .................................................... 18
10.2 Sectional drawing NKS-C ....................... 18
10.3 Sectional drawing NKL-C ......................... 19
10.4 Worm gear .............................................. 19
10.5 Actuator ................................................... 20
10.6 Connection actuator ................................ 20
10.7 Dimensional drawing NKS-C with hand
lever ........................................................ 21
10.8 Dimensional drawing NKS-C with worm gear
............................................................ 22
10.9 Dimensional drawing NKSP-C ................. 23
10.10 Dimensional drawing NKL-C with hand
lever ........................................................ 25
10.11 Dimensional drawing NKL-C with worm
gear ......................................................... 26
10.12 Dimensional drawing NKLP-C ............. 27