Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 5 Sign for transport securing device for actuator Pipe screws, flanges to ISO/DIN Flange Screws Tightening nom. size torque [mm] [ISO/DIN] [Nm] 4 x M16 8 x M16 8 x M16 8 x M20 8 x M20 12 x M20 12 x M20...
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 7 Weights (ca. kg) Sandwich- Double-flange Nom. size Lug style body body body open open open [mm] [inch] Lever Gear staff ende staff ende staff ende 2“ 3“ 4“ 6“ 16,0 11,0 12,0 8“...
Intended use information which is to be observed during installation, operation and maintenance. Richter shut-off and control butterfly valves are It must therefore be read before installation and pressure-maintaining components in accordance with commissioning! the German Pressure Equipment Directive (DGRL) for For valves which are used in potentially explosive the passage and shut-off of fluids.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 9 Product features: the valve has been properly installed in the pipe system Wide sealing surfaces of the body lining the usual flow rates are not exceeded in continu- Long valve neck for optimum heat insulation ous operation.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 10 If the valve is not completely filled with medium, If the valve is heated (e.g. heating jacket), it must e.g. during evacuation and filling, the formation of be ensured that the temperature classes pre- an explosive atmosphere must be prevented, e.g.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 11 Storage Transport securing device If the valve is not installed immediately after delivery, it must be put into proper storage. It should be stored in a dry, vibration-free and well- ventilated room at as constant a temperature as possible.
920/1 and a tooth lock washer 936/1 to the with a metal inlay should be used. These gaskets are underside of the head flange. available as special accessories in the Richter range. The other end is metallically secured in the plant. Series NK/F, NKP/F Butterfly valves with tapped bores are earthed by the pipe screws.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 13 Operation Initial commissioning Operation during cavitation leads to increased wear. Normally, the valves have been tested for leaks with Non-observance pressure-temperature air or water. Prior to initial operation check body diagram can lead to damage of the plastic lining. bolting.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 14 Malfunctions Flange connection valve/pipe is leaking The ball no longer closes completely Retighten the flange screws to a tightening torque Is the stem deformed? according to Section 1.2. If this does not remedy Is the coupling worn? the leak, the recommended torques may be With a worm gear or actuator, check whether the...
9.1.1 Safety stuffing box 9.2.3 Remotely actuated Insert sealing foil 413 between the upper and Richter butterfly valves can be remotely actuated by lower halve of the shell 120. means of pneumatic, hydraulic or electric quarter-turn actuators equipped with a connection as per ISO Displace packing rings 402/1 by 90°...
Tests respectively MSS SP-67. Following tests would be done after the assembly. For detailed installation and inspection regulations see QM No. 0910-08-1005, available from Richter on Measurement of the breakaway torque request. The breakaway torque required for opening and closing the valve is to be ascertained. The maximum torque should not exceed the values given in Section 1.8.
Series NK/F, NKP/F, NKS/F, NKSP/F, NKL/F, NKLP/F Page 24 10.10 Option safety stuffing box Lever unit Option monitoring connection Worm gear Option monitoring connection see lever unit Actuator Option monitoring connection see lever unit 9520-070-en Revision 10 TM 8361 Edition 10/2010...
Page 37
Das Unternehmen Richter Chemie-Technik GmbH bescheinigt hiermit, dass die o.a. Baureihen die grundsätzlichen Anforderungen der aufgeführten Richtlinien und Normen erfüllt. Richter Chemie-Technik GmbH confirms that the basic requirements of the above specified directives and standards have been fulfilled. Für nicht aufgeführte Nennweiten ist eine Kennzeichnung nicht zulässig.
Page 39
A Unit of IDEX Corporation Kempen, 27.01.2011 Declaration by the Manufacturer Functional Safety according to IEC 61508 We declare, that the devices NK, NKS, NKL are suitable for use in a safety related application, if the safety instructions and the following parameters are observed: Device Type: Proof Test Interval:...
Page 40
Safety Information / Declaration of No Objection Concerning the Contamination of Richter-Pumps, -Valves and Components SCOPE AND PURPOSE Each entrepreneur (operator) carries the responsibility for the health and safety of his employees. This extends also to the personnel, who implements repairs with the operator or with the contractor.
Page 41
A. Details of Richter-product: Failure description: Classification: Article number: Equipment: Serial number: Application tool: Application process: B. Condition of the Richter-product: Contamination : Was it in operation ? toxic Drained (product/operating supply item) ? caustic All openings hermetically locked! inflammable...
Page 42
Waste Management Law (AbfG) and the Water Resources Act (WHG) An inspection/repair of Richter products and parts will only take place, if the attached explanation is filled out correctly and completely by authorized and qualified technical personnel and is available.
Need help?
Do you have a question about the NK/F series and is the answer not in the manual?
Questions and answers