Data sheet * * Fill Level Limiter. Application

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*09005536* D_EN_NK10-2009 Rev.A 06/13 *09005536* ca. 60 mm ca.

lowest permissile level. As a limiter the device conforms to the requirements of DIN 4754. The devices in this series are... Type-tested according to DIN 32728.

The EC-type examination test was carried out y the German inspection authority TÜV Nord Plant Engineering. GL 65 353-93 HH certified. The certification was made y Germanischer Lloyd.

Design and mode of operation The swim system of the fill level limiter is contained in the fluid-filled reservoir (expansion tank).

The fulcrum of the swimmer rod is located outside of the pressure chamer.

1 * * D_EN_NK Rev.A 06/13 * * ca. 60 mm ca. 10 mm Data sheet NK10 Fill Level Limiter Application The NK10 fill level limiter is used in thermothechnical and process plants as a safeguard against the fill level falling elow the lowest permissile level. As a limiter the device conforms to the requirements of DIN The devices in this series are... Type-tested according to DIN Certified under EC guideline 97/23/EC with certificate no Z 0063/2/1. The EC-type examination test was carried out y the German inspection authority TÜV Nord Plant Engineering. GL HH certified. The certification was made y Germanischer Lloyd. Copies of the certificates can e found in the appendices to the operating manual. Design and mode of operation The swim system of the fill level limiter is contained in the fluid-filled reservoir (expansion tank). The swimming motions generated y changes in the fill level are transmitted directly to a microswitch y a swimmer rod sealed in a stainlesssteel ellows. The fulcrum of the swimmer rod is located outside of the pressure chamer. There is a test utton outside the pressure chamer with which a function check as per DIN can e made without lowering the fill level. When pressed, the ody of the swimmer is moved against its uoyancy. Important features Temperature staility up to 400 C Parts that come into contact with media made of stainless steel Doule-walled stainless-steel ellows Heat-resistant finish Functional Schematic Swimmer Welding sockets Counterflange Switch lever Microswitch A locking and unlocking system as per DIN must e incorporated into the downstream electrical control if the device is used as a fill level limiter. This safety system must conform to DIN Swimmer rod Metal ellows Test utton Cale screw connection M16 x 1.5

2 Technical data Variants NK101 NK102 NK103 NK104 NK105 NK106 NK107 NK10A NK10 Max. operating pressure 20 ar 20ar 10ar 16ar 16ar 20ar 20ar 10ar 20ar Max. temperature of medium 400 C 400 C 350 C 400 C 400 C 400 C 400 C 350 C 400 C Permissile amient temperature 70 C Variants NK10F NK10G NK10H NK10K NK10M NK10N NK10P Max. operating pressure 20 ar 20 ar 20 ar 150ls 300ls 300ls 300ls Max. temperature of medium 400 C 400 C 400 C 400 C 400 C 400 C 400 C Permissile amient temperature 70 C General data Max. load data 250 VAC, 6A resistive load 250 VDC, 250mA resistive load Electrical connection Inner terminal strip Type of protection IP55 as per DIN EN Specific minimum density ρ=0.6 kg/dm 3 Switch hysteresis Installation position ca. 6 mm Horizontal All variants with 2 microswitches Switching point differential Switching point differential on the medium surface max. 30 mm dependent on medium density Materials Swimmer system Stainless steel Metal ellows Stainless steel Welding sockets St 35.8 Flange (H II) or 15Mo3 and Page

Ød Ø110 Ø94 D ØC Dimensional drawings Variant Flange A C D material NK104 1.0425 220 365 82.5 77.8 x 77.8 NK105 1.0425 250 395 88.

3 Ød Ø110 Ø94 D ØC Dimensional drawings Variant Flange A C D material NK x 77.8 NK x 90 ca. 110 A Variant Flange Connecting D LK d Numer of material dimensions NK DN62 PN Ø62 ca. 240 ca Page

Ød Ød Variants Flange material Connecting dimensions D LK d Numer of NK102 1.0425 Type 1 DN80 PN40 200 160 24 22 18 8 NK10G 1.4571 Type 1 DN80 PN40 200 160 24 22 18 8 ca. 220 ca.

4 Ød Ød Variants Flange material Connecting dimensions D LK d Numer of NK Type 1 DN80 PN NK10G Type 1 DN80 PN ca. 220 ca. 365 Variant Flange material Connecting dimensions D LK d Numer of NK Type 1 DN65 PN NK Type 1 DN65 PN NK Type 1 DN65 PN Ø62 ca. 240 ca Page

5 Ød Ø106 Ød Ø120 Ø106 Variant Flange Connecting D LK d Numer of material dimensions NK10F Type C DN80 PN ca. 220 ca. 365 Variants Flange Connecting D LK d Numer of material dimensions NK10H Type G DN80 PN ca. 220 ca Page

6 Ød Ød Ø110 Ø94 Variant Flange Connecting D LK d Numer of material dimensions NK DN65 PN Ø62 ca. 240 ca. 385 Variant Flange material Connecting dimensions D LK d Numer of NK10P ANSI ls NK10N ANSI ls NK10M ANSI ls NK10K ANSI ls ca. 220 ca Page

7 Order Codes Fill Level Limiter NK Series Flange DIN EN Type 1 DN65 PN > 1 Flange DIN EN Type 1 DN80 PN > 2 Flange DIN EN Type 1 DN65 PN > 3 Flange DIN EN Type C DN65 PN > 6 Flange DIN EN Type 1 DN65 PN > 7 Welding connection mm (S80)... > 4 Welding connection mm (S90)... > 5 Flange DIN EN Type C DN65 PN > A Flange DIN EN Type D DN65 PN > Flange DIN EN Type C DN80 PN > F Flange DIN EN Type 1 DN80 PN > G Flange DIN EN Type G DN80 PN > H Flange ANSI ls > K Flange ANSI ls > M Flange ANSI ls > N Flange ANSI ls > P Switching Elements 1 microswitch... > 1 2 microswitches... > Page

8 Technische Änderungen vorehalten Suject to change without notice Changements techniques sous réserve Fischer Mess- und Regeltechnik GmH ielefelder Str. 37a D ad Salzuflen Tel Fax

Data sheet NK10. Fill Level Limiter DB_EN_NK10 ST4-C 04/17 * *

Data sheet NK10. Fill Level Limiter DB_EN_NK10 ST4-C 04/17 * * ata sheet NK10 09005536 _EN_NK10 ST4-C 04/17 *09005536* Fill Level Limiter 1 Prouct an functional escription FISCHER Mess- un Regeltechnik GmH 1 Prouct an functional escription 1.1 elivery scope NK10 accoring