Catalogue 10 - STAUFF Hydraulic Accessories

A www.stauff.com/10/en/#17 17 Level Gauge (Compact Design) Type SNKK Characteristics Visual / electrical fluid level indication in hydraulic reservoirs with maximum tank pressures not exceeding 2 bar / 29 PSI; ideal for applications in which space is limited Nominal Sizes and Designs ƒ 6 nominal sizes from 127mm / 5.00 in to 381mm / 15.00 in ƒ Compact design allows space-saving installation: Always 40mm / 1.57 in shorter than Level Gauges SNK of the comparable nominal size ƒ Display either undivided (SNKK-127 ... 176) or subdivided by strut(s) into 2 (SNKK-254) or 3 sections (SNKK-305 and SNKK-381) Media Compatibility ƒ Suitable for use with Mineral and Petroleum based hydraulic fluids (HL and HLP) Materials ƒ Housing made of Aluminium, black powder-coated ƒ Sight tube and plugs made of Polyamide (PA) ƒ Float made of Polypropylene (PP) ƒ Seals made of FKM (Viton®) For the individual components of the level gauge (sight glass, housing, Seals, bolts), alternative materials for improved UV or chemical resistance, low-temperature applications down to -50°C / -58 °F and use with special media (such as bio-degradable fluids, diesel oils, gasolines) are available on request. Electrical Specifications ƒ Magnetic float activates switch when fluid level drops below contact level within 60mm / 2.36 in of lower banjo bolt ƒ Available as a SPDT (Single Pole Double Throw) contact ƒ Equipped with five-pin circular connector M12 or Deutsch connector ƒ Direction of the electrical contact box is right to top by default Technical Data ƒ IP 67 protection rating: Dust tight and protected against powerful water jets; even immersion (up to 1m / 3.28ft) in water is possible under defined conditions of pressure and time (IP 69K on request) ƒ Operating temperature range: -30°C ... +80 °C / -22°F ... +176 °F ƒ Recommended tightening torque: 8N·m / 5.9ft·lb ƒ Minimum lateral distance to other magnetic components and cables: 10 mm / .39 in Accessories / Options ƒ Dial thermometers with probe and a Celsius or a dual Celsius / Fahrenheit scale with a temperature display range of up to +100 °C / +200 °F ƒ Thermo Switches ƒ Temperature Sensors ƒ Deutsch Adaptor Cable Please see pages 18 / 19 / 20 for details. Dimensions Nominal Size Dimensions (mm / in) A B1 B2 C (Max.) D E F (with T1) F (with T2) L1 L2 L3 SNKK-127 56 34,5 ~55 8 35,1 51,5 157,5 257,5 165 127 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 6.50 5.00 ~2.36 SNKK-150 56 34,5 ~55 8 35,1 51,5 157,5 257,5 188 150 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 8.98 5.91 ~2.36 SNKK-176 56 34,5 ~55 8 35,1 51,5 157,5 257,5 214 176 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 8.43 6.93 ~2.36 SNKK-254 56 34,5 ~55 8 35,1 51,5 157,5 257,5 292 254 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 11.50 10.00 ~2.36 SNKK-305 56 34,5 ~55 8 35,1 51,5 157,5 257,5 343 305 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 13.50 12.00 ~2.36 SNKK-381 56 34,5 ~55 8 35,1 51,5 157,5 257,5 343 381 ~60 2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 13.50 15 ~2.36 f Banjo Bolt Size Metric ISO thread M12 (standard option) 12 Metric ISO thread M10 10 Unified coarse thread 1/2 – 13 UNC U1 Unified fine thread 1/2 – 20 UNF U2 Unified extra-fine thread 1/2 – 28 UNEF U3 g Thermo Switch / Temperature Sensor / Anti-Drain Valve Option Supplied without Thermo Switch / Temperature Sensor / Anti-Drain Valve - Break Contact, opens at contact level (normally closed); Equipped with standard connector 0 Break Contact, opens at contact level (normally closed); Equipped with connector M12 OD Make Contact, closes at contact level (normally open); Equipped with standard connector C Make Contact, closes at contact level (normally open); Equipped with connector M12 CD Temperature Sensor TS-SNA/SNK-PT100; Equipped with connector M12 PT100 Anti-Drain Valve Set A DA Anti-Drain Valve Set B DB Thermo Switches / Temperature Sensors only available for banjo bolt size M12. Please see pages 18 to 20 for details. h Switching Temperature Contact switches at +60°C / +140°F 60 Contact switches at +70°C / +158°F 70 Contact switches at +80°C / +176°F 80 Contact switches at +90°C / +194°F 90 Only to be indicated when using a Thermo Switch. Options T1C/CF and T2C/CF are not available for banjo bolt size M10 and not be used in conjunction with Thermo Switches or Temperature Sensors. Please see page 18 for details. Order Codes a Type Level Gauge with visual / electrical fluid level indication (compact design) SNKK b Nominal Size SNKK-127 (nominal size of 127mm / 5.00 in) 127 SNKK-150 (nominal size of 150mm / 5.91 in) 150 SNKK-176 (nominal size of 176mm / 6.93 in) 176 SNKK-254 (nominal size of 254mm / 10.00 in) 254 SNKK-305 (nominal size of 305mm / 12.00 in) 305 SNKK-381 (nominal size of 381mm / 15.00 in) 381 Contact STAUFF for alternative nominal sizes and designs. c Sealing Material FKM (Viton®) V d Electrical Function SPDT (Single Pole Double Throw) contacts, 1 contact opens and 1 contact closes at DD contact level; Equipped with connector M12 e Thermometer Option Supplied without thermometer (standard option) 0 Dial thermometer with probe (200mm / 7.87 in) and a Celsius scale up to 100°C T1C Dial thermometer with probe (300mm / 11.81 in) and a Celsius scale up to 100°C T2C Dial thermometer with probe (200mm / 7.87 in) and a dual scale up to 100°C / 200°F T1CF Dial thermometer with probe (300mm / 11.81 in) and a dual scale up to 100°C / 200°F T2CF Connection Details and Electrical Functions Type DD: Five-pin circular connector M12, A-coded, according to IEC 61076-2-101 A B1 L2 L1 D C E F B2 L3 Contact Level ~55 (~2.17) 26 (1.02) M12 7 (.28) Maximum admissible tolerance for the bolt center spacing (dimension L2) according to DIN ISO 2768-f: ±0,20mm / .008in for all nominal sizes. Dimensional drawings: All dimensions in mm (in). –40mm / –1.57in in comparison with Level Gauges SNK 1 Contact opens and 1 contact closes when fluid level drops below contact level Pin assignment at empty reservoir (default setting at point of delivery) Clearance Hole: Ø13 (Ø.51) for M12 / Ø10,5 (Ø.41) for M10 / Ø13,5 (Ø.53) for UNC, UNF and UNEF Dial Thermometer with Probe T1/T2 (optional) SNKK - 127 - V - DD - O - 12 - O - 60 Catalogue 10 § Edition 01/2024 Fluid Level and Temperature Indicators