Pressure and Differential Pressure Switches, Watertight Enclosure, L-Series ® This broad Ashcroft switch series Pressure psi ranges is easy to use and readily retrofi ts - 316L SS to virtually all process, industrial Differential psid ranges and OEM applications. (7) - Nickel-plated brass  Single or dual independently Pressure and differential inches adjustable setpoints meet all of water ranges setpoint requirements - Epoxy coated carbon steel  Watertight NEMA 4X, IP66 enclosure (7) • Approved for UL, CSA and FM  Choice of switch elements for all ratings applications, including hermetically  Wide choice of actuators, including sealed designs for fi re-safe and NACE (7)  Fixed or adjustable deadband applications  Standard pressure connection  Readily available LOOK FOR THIS AGENCY MARK ON OUR PRODUCTS materials: (1) 4 - ACTUATOR SEAL Range Code Process 1 - FUNCTION (2) & Temp. Vac. 0-600 1000 2000- LPA - Pressure control, single setpoint, Material Limits in.HO psi psi 3000 2 °F psi adjustable deadband LPD - Pressure control, two independently B-Buna N 0 to 150 ● ● ● ● adjustable setpoints, Ţ xed deadband HERMETICALLY SEALED SWITCH V-Viton 20 to 300 ● ● ● We recommend hermetically sealed switch elements LPS - Pressure control, single setpoint, T-Teţ on 0 to 150 ● ● ● ● for improved reliability. The hermetically sealed switch Ţ xed deadband provides uncompromising contact protection in harsh (6),(8) S-SS 0 to 300 ● ● LDA - Differential pressure control, single or corrosive environments. The Ashcroft L Series is also (6) P-Monel 0 to 300 ● ● approved for installation in Division II hazardous areas setpoint, adjustable deadband when supplied with hermetically sealed contacts. (1) 5 - PRESSURE PORT LDD - Differential pressure control, two inde- Features: pendently adjustable setpoints, Ţ xed Order Code • UL-recognized component, deadband 1 guide WSQ2, File E85076 25 ⁄4 NPT Female • All-stainless steel welded LDS - Differential pressure control, single 1 ⁄4 NPT Female and construction 06 setpoint, Ţ xed deadband 1 ⁄2 NPT Male Combination 1 07 ⁄2 NPT Female 2 - ENCLOSURE 6 - OPTIONS N4 - NEMA 4/4X, IP66 See pages 229-230 (watertight and corrosion resistant) 7 - STANDARD PRESSURE RANGES 3 - SWITCH ELEMENTS FOR LPA & LDA See page 228 CONTROLS NOTES: Description/Maximum Electrical Ratings Code UL/CSA Listed 1. These items are wetted by process ţ uid. 10A,125/250 Vac 2. Ambient operating temperature limits –20 to 150°F, H General purpose 1/2A, 125 Vdc all styles. Setpoint shift of ±1% of range per 50°F 1/4A, 250 Vdc temperature change is normal. Switches calibrated at Hermetically sealed 70°F reference. 11A, 125/250 Vac J switch, general 3. Estimated dc rating, 2.5A, 28 Vdc (not UL listed). 5A, 30 Vdc purpose 4. Estimated dc rating, .4A, 120 Vdc (not UL listed). 5. Not UL listed at 480 Vac. SWITCH ELEMENTS FOR LPD, LPS, 6. Available on pressure only. LDD & LDS CONTROLS 7. Refer to Option Table. Code 8. Order Option XUD, stainless steel process connection. Switch Elements Single Dual S UL/CSA Listed (PS) (PD) TO ORDER THIS L-SERIES PRESSURE SWITCH: (4) K KK Narrow deadband 15A, 125/250 Vac (4) F FF Sealed environment 15A, 125/250 Vac Select: LPD N4 GG B 25 XK3 30 psi proof 1. Function: 15A, 125/250/480 Vac (5) 2. Enclosure: G GG General purpose 1/2A, 125 Vdc 1/4A, 250 Vdc 3. Switch Element: Hermetically sealed 4. Actuator Seal: (3) P PP switch, narrow 5A, 125/250 Vac deadband 5. Pressure Port: Hermetically sealed 6. Options (see pages 229-230): 11A,125/250 Vac J JJ switch, general 5A, 30 Vdc 7. Pressure Range (see page 228): purpose Nominal Ranges and Deadbands Pressure and Temperature Switches, L- and G-Series PRESSURE/VACUUM SWITCHES (2) Overpressure Approximate Deadband Switch Element (Buna-N Diaphragm) Ratings (3) (4) (4) LPA-GPA LPS-GPS LPD-GPD Switch Element Minimum Proof psi (1) Burst psi Nominal Range J, H G J, H K, F P GG JJ, HH KK,FF PP Vacuum –30 in.Hg –760 mmHg 500 1000 6-24 2.5-4 4-6 1-2 1-2.5 3-5.5 4-6.5 1-2 1-2.5 Compound –30 in.Hg/ –760 mmHg/ 500 1000 6-24 2.5-4 4-6 1-2 1-2.5 3-5.5 4-6.5 1-2 1-2.5 2 15 psi0 1.0 kg/cm 3-12 1-2.5 1-3.5 0.5-1.5 0.5-2 1.5-3.5 1.5-4 1-2 1-2 Pressure 30 in.H O 750 mmH O 20 35 4.0-27 1.5-3.5 2.0-4.0 0.5-1.0 0.7-2.0 2.1-4.9 2.8-5.6 0.7-1.4 0.7-2.8 2 2 60 in.H O 1500 mmH O 20 35 5.0-54 1.5-4. 2.5-5.0 0.5-1.4 1.0-2.5 3-5.6 3.5-7.0 0.7-2.0 2-3.5 2 2 100 in.H O 2500 mmH O 20 35 8.5-90 2.0-5.5 4.0-8.5 1.0-2.0 1.4-3.0 4-7.7 5.6-11.7 1.4-2.8 2-4.2 2 2 150 in.H O 3750 mmH O 20 35 18-135 5.0-11 10-18 1.5-3.0 2.0-6.0 7.0-16 14-25.1 2.1-4.2 5-9.2 2 2 2 15 psi 1 kg/cm 500 1500 2.5-13 1.0-1.5 1.0-2.5 0.5-1.0 0.75-1.5 1.4-2.1 1.4-3.5 .7-1.4 1-1.4 2 30 psi 2 kg/cm 500 1500 3.0-27 1.0-2.8 1.0-3.2 .75-1.5 1-1.8 1.4-5 3-6 1-2.1 1.4-2.5 2 60 psi 4 kg/cm 500 1500 5.0-54 2.0-4.0 2.0-4.5 1.0-2.0 1.0-2.5 3-7 4-8 1.4-2.8 1.4-3.5 2 100 psi 7 kg/cm 1000 3000 10-90 3-6 5.0-10 1.0-2.5 1.4-3.2 7-12 7.0-14 1.4-3.5 3-7 2 200 psi 14 kg/cm 1000 3000 18-180 7-14 10-18 1.0-4.0 5.0-8.0 10-23 14-25 1.4-5.6 7.0-11.2 2 400 psi 28 kg/cm 2400 3000 45-360 16-30 16-45 4.0-8.0 5.0-15 22-42 22-63 5.6-11.2 7.0-21 2 600 psi 42 kg/cm 2400 3000 75-540 16-50 20-75 5.0-15 6.0-25 22-70 28-105 7.0-21 8.0-35 (10) 2 1000 psi 70 kg/cm 12000 14000 160-900 75-130 50-160 7.0-30 10-85 70-180 70-223 10-42 14-119 2 2000 psi 140 kg/cm 12000 14000 350-1800 150-200 150-350 20-50 25-110 209-279 209-488 28-70 35-154 2 3000 psi 210 kg/cm 12000 14000 400-2600 180-250 180-400 30-70 30-190 251-349 251-558 42-98 42-226 DIFFERENTIAL PRESSURE SWITCHES (2,7) Overpressure Approximate Deadband Switch Element (Buna-N Diaphragm) Ratings (3) (4) (4) LDA-GDA LDS-GDS LDD-GDD Switch Element Minimum Static psi (1) Proof psi Nominal Range J, H G J, H K, F P GG JJ, HH KK,FF PP Pressure 30 in.H Od 750 mmH O 5.4 21.6 4.0-27 1.5-3.5 2.0-4.0 0.5-1.0 0.7-2.0 2.1-4.9 2.8-5.6 0.7-1.4 0.7-2.8 2 2 60 in.H Od 1500 mmH O 5.4 21.6 5.0-54 1.5-4.0 2.5-5.0 0.5-1.4 1.0-2.5 2.5-6 3.5-7.0 0.7-2.0 2-3.5 2 2 100 in.H Od 2500 mmH O 5.4 21.6 8.5-90 4.0-5.5 4.0-8.5 1.0-2.0 1.4-3.0 5.6-7.7 5.6-11.9 1.4-2.8 2-4.2 2 2 150 in.H Od 3750 mmH O 5.4 21.6 18-135 5.0-11 10-18 1.5-3.0 2.0-6.0 7.0-15.4 14-25.2 2.1-4.2 2.8-8.4 2 2 2 30 psid 2 kg/cm 500 2000 3.0-27 1.0-2.5 1.0-3.0 1.0-1.5 1.0-1.8 2-5 3-6 1-2.1 1.4-2.4 2 60 psid 4 kg/cm 500 2000 5-54 2-4 2-4.5 1-2 1-2.5 3-7 4-8 1.4-2.8 1.4-3.5 2 200 psid 14 kg/cm 1000 4000 18-180 10-15 10-18 1.0-4.0 5.0-8.0 14-23 14-30 1.4-5.6 7.0-11.2 2 400 psid 28 kg/cm 1000 8000 45-360 16-30 16-45 4.0-8.0 5.0-15 22.4-42 22.4-36 5.6-11.2 7.0-21.0 TEMPERATURE RANGE SELECTION (8) Approximate Deadband Switch Element (3) (4) (4) Adjustable Range Max. LTA-GTA LTS-GTS LTD-GTD Temp. Switch Element °F °F °C J, H G J, H K, F P GG JJ, HH KK,FF PP –40 to 60 –40 to16 400 18-90 4.0-10 9.0-18 1.5-3 2-5 4-10 9.0-18 1.5-3 2-5 0 to 100 –20 to 40 400 30-90 5.0-15 10-30 1.5-5.5 3-7 5-15 10-30 1.5-4.5 3-7 75 to 205 20 to 95 400 34-120 6.0-18 10-34 3-5.5 3-8 6-18 10-34 3-5.5 3-8 150 to 260 65 to125 400 25-100 3-13 9.0-25 1.5-4 3-7 3-13 9.0-25 1.5-4 3-7 235 to 375 110 to 190 500 35-130 6-19 10-35 2-5.5 3-8 6-17 10-35 2-5.5 3-8 (9) 350 to 525 175 to 275 700 40-165 5-27 15-40 3-7 3.5-11 5-27 15-40 3-7 3.5-11 (6) 500 to 750 260 to 400 900 50-200 20-36 5-10 6-21 20-36 20-36 36-60 5-10 6-21 NOTES: Viton: Multiply Buna N value by 1.4 5. Switches can be set at increase or decrease through- 1. Switches may generally be set between 15% and 100% Teţ on: Multiply Buna N value by 1.2 out the nominal range. of nominal range on increasing pressure. Consult fac- Stainless Steel: Multiply Buna N value by 1.7 6. Available with remote mount thermal system only. tory for applications where setpoints must be lower. Monel: Multiply Buna N value by 1.7 7. Deadbands given are for zero static working pressure. 2. All deadbands are given in English units as shown in 3. Deadbands for LTA, LPA and LDA are adjustable 8. All deadbands given in °F. 3 the nominal range column. Deadbands shown are for between the values shown for all diaphragm materials. 9. Not available with 2 /4˝ stem. switches with Buna N diaphragm. 4. Deadbands for LPS, LPD, LDS, LDD, LTD, and LDS 10. Proof pressure is 4000 psi with stainless steel and Approximate deadbands for optional diaphragms: models are Ţ xed within the range of values shown. monel welded diaphragms. Pressure Switch – psi Ranges Pressure Switch – Inches Of Water Ranges 2.7 lb. 1.2 kg 3.6 lb. 1.6 kg Differential Pressure Switch – Differential Pressure Switch – psi Differential Ranges Inches Of Water Ranges 4.5 lb. 2.0 kg 3.8 lb. 1.7 kg