Pivot Seal Pressure Switches for Fluid Power Applications

Transcription

1 for Fluid Power Applications SOR s Pivot Seal pressure switches are rued, field-mounted instruments that incorporate a flexible modular desin providin cost effective sensin solutions. The pressure sensin element of the Pivot Seal pressure switch is a force-balance, piston-actuated assembly sealed by an o-rin. As with all SOR pressure switches, the actual motion of the piston to actuate the micro switch is only several thousandths of an inch, resultin in minimal o-rin wear. Media pressure on the area of the piston counteracts the force of the rane sprin (adjustable by the adjustin nut screw) and moves the piston shaft and the force transmitter to directly actuate the electrical snap-action switchin element. Application Information The desin of the piston/port assembly results in the device bein well-suited for a wide variety of hih pressure fluid power (hydraulic) applications, especially where hih-shock pressures and hih-cycle rates are expected, and where normal industrial clean hydraulic fluid is used. Form 219 Features and Benefits Modular Desin l Wide rane of electrical enclosures available. Construction l Rued, hih cycle rate tolerance. l Lon life. l Not critical to vibration, hih overrane and proof pressures. l Excellent corrosion resistance to hostile environments. Instrument Quality l Hih repeatability. l Narrow dead band. l Neliible temperature effect. Delivery l Routine shipments 7 to 10 workin days. l Emerency shipments via air same day. Service l Factory service enineers and area factory representatives provide effective and prompt worldwide service. Wetted Parts l Wide selection of materials. Field Adjustability l Excellent resolution of Set Points, adjustment, no special tools required. l No-chare factory calibration. Warranty l 3 years from date of manufacture. Reistered Quality System to ISO 9001 Reistered Quality System to ISO

2 How to Order Model Number System 2NN-K3-P1-D1A-PP Piston Housin Switchin Rane O-Rin Seal Element Sprin Pressure Port Quick Selection Guide Basic Pivot Seal pressure switches with standard wetted parts are normally suitable for a wide variety of hih-pressure fluid power (hydraulic) applications, especially where hih-shock pressures and hih-cycle rates are expected, and where normal industrially clean hydraulic fluid is used. Refer to the Quick Selection Guide section on pae 3. Corrosive service and particular customer requirements may require optional components. Refer to the How to Order section on this pae or the dedicated pae to locate optional components, such as: housins, switchin elements, o-rin seals, pressure ports and accessories. Each position in the model number, except, must have a desinator. Applications The Pivot Seal pressure switches in this catalo are suitable for a wide variety of fluid power applications. Specific application requirements can normally be met by selectin optional components, such as, switchin elements and o-rin seal. Certain applications may require customized specials. Consult area factory representative or the factory. Note: The SOR Pivot Seal is not suitable for process applications. Refer to Form 216 Pressure Vacuum Switches for Pressure Applications. Weathertiht, Conventional Explosion Proof and Hermetically Sealed Explosion Proof models are presented in this catalo. How to Order Steps 1 throuh 5 are required; step 6 is optional. Orders must have complete model numbers, i.e. each component must have a desinator. Step 1: Select Adjustable Rane accordin to set point (pae 4). Step 2: Select Housin for type of service (pae 5). Step 3: Select electrical Switchin Element for housin and electrical service (pae 6). Step 4: Select O-Rin Seal for process compatibility and containment (pae 7). Step 5: Select Pressure Port for process connection (pae 7). Step 6: Select as required for service (pae 8). If Aency Listed, Certified or Approved pressure switches are required, see pae 9 & 10 for components that must be specified. 2 Reistered Quality System to ISO 9001

3 Quick Selection Guide Specify model number from table below. Model Number Rane Typical Dead Band (psi) Ratin Housin 15 amps VAC 3/4" NPT(F) Aluminum Model Number Rane Typical Dead Band (psi) Ratin Housin 2NN - K3 - P1- D1A 100 to NN - K5 - P1- D1A 500 to NN - K45 - P1- D1A 1000 to Weathertiht NEMA 4, 4X, IP65 2L - K3 - P1 - D1A 100 to L - K5 - P1- D1A 500 to L - K45 - P1- D1A 1000 to amps VAC 3/4" NPT(F) Cast Iron Hazardous Locations Class I, Groups C & D: Class II, Groups E, F, G; Divisions 1 & 2 (as an outlet box) Model Number Rane Typical Dead Band (psi) Ratin Housin 2AG - EF3 - P1 - D1A 100 to AG - EF5 - P1 - D1A 500 to AG - EF45 - P1 - D1A 1000 to amps VAC 1/2" NPT(M) Aluminum Hazardous Locations Class I, Groups A, B, C, & D: Class II, Groups E, F, G; Divisions 1 & 2 Standard Construction Pressure Port Overrane Proof Pressure 1/4 NPT(F) 8,000 psi 10,000 psi Wetted s Piston 300 Series stainless steel O-Rin Buna-N Pressure Brass Reistered Quality System to ISO

4 Step 1: Adjustable Rane 2NN-K3-P1-D1A-PP Piston-Sprin Desinators Adjustable psi Rane bar Typical Dead Band psi bar Overrane Pressure psi bar Proof Pressure psi bar to to to to , to to Notes 1. Ambient temperature rane: -30 to 180 F (-34 to 80 o C). Check restrictions, pae 6, for optional electrical switchin elements and pae 7 for optional o-rin seals. 2. Bar values may not be exact mathematical conversions. They are practical equivalents. Dead Band Considerations 1. Dead band values are expressed as typical expected at mid-adjustable rane usin the standard K switchin element. 2. A dead band multiplier must be applied to the typical dead band value shown in adjustable rane above whenever an optional switchin element is specified. 3. Dead band can be widened by selectin an optional switchin element with a multiplier reater than 1.0. Example: Model 2NN-L3-P1-D1A-PP Typical Dead Band: 80 psi L Switchin Element Multiplier 1.5 Corrected Typical Dead Band 80 x 1.5 = 120 psi Switchin Element Desinators A, B, BD, D, E, EF, G, GA, J, JF, JR, K, KA, KB, M, W, Y AF, C, EB, EE, EG, GG, JB, JG, JJ, KK, L, S, YY Dead Band Multiplier AA, AG, BB, LL Reistered Quality System to ISO 9001

5 General Purpose NEMA 1 : 3/4 NPT(F)-Riht PP See Aency Listins pae 10. See Switchin Element Groups 1, 2, 3, 4 pae 6. Weathertiht NEMA 4, 4X, IP65 : 3/4 NPT(F)-Riht NN See Aency Listins pae 10. See Switchin Element Groups 1, 2, 3, 4 pae 6. : 3/4 NPT(F)-Left, Riht P3 See Switchin Element Groups 1, 2, 3, 4 pae 6. : 3/4 NPT(F)-Left, Riht N3 See Aency Listins pae10 See Switchin Element Groups 1, 2, 3, 4 pae 6. Step 2: Housins 2NN-K3-P1-D1A-PP : Exposed Contacts Open bracket with exposed switchin element does not meet NEMA 1. H3 See Switchin Element Groups 1, 3 pae 6. : 3/4 NPT(F) - Riht Cover: Heavy duty with Viton asket N4 Switchin Element Groups 1, 2, 3, 4 pae 6. : 3/4 NPT(F)-Riht : Carbon Steel N6 See Switchin Element Groups 1, 3 pae 6. See Form 987 for Omni Weathertiht Pivot Seal. Contains UL Listed and CSA Certified hermetically sealed switchin element. : 1/2 NPT(M)-Top : Copper-free** aluminum AG Contains UL Listed and CSA Certified hermetically sealed switchin element. : 1/2 NPT(M)-Top : 316SS AH UL Listed Class I, Group C & D; Class II. Group E, F, G; Division 1 & 2 as an outlet box only. : 3/4 NPT(F)-Riht : Cast Iron Weathertiht with Option CG *L UL Listed Class I, Group C & D; Class II, Group E, F, G; Division l & 2 as an outlet box only. : 3/4 NPT(F)-Left, Riht, Top : Cast Iron Weathertiht with Option CG * S Class I, Group A, B, C & D; Class II, Group E, F, G; Division l & 2 as an outlet box only. : 3/4 NPT(F)-Left, Riht, Top (Housin): Cast Iron : (Cover): Aluminum Weathertiht with Option CG See Switchin Element Groups 1, 3 pae 6. RN RM Hazardous Locations Hermetically Sealed See Switchin Element Group 5 pae 6. See Switchin Element Group 5 pae 6. - RN: 3/4 NPT(F)-Riht - RM: M20 x Riht Standard terminal block See Aency Listins pae10. SwItchin Element Groups 1, 2, 3, 4, 5 pae 6. CENELEC/BASEEFA Certified (EE xd IIC T6) : 1/2 NPT(M)-Top : Copper-free*aluminum BG CENELEC/BASEEFA Certified (EExd IIC T6) : 1/2 NPT(M)-Top : 316SS BH Hazardous Locations Conventional Explosion Proof See Switchin Element Groups 1, 3 pae 6. See Switchin Element Groups 1, 3, 7 pae 6. *TA See Aency Listins pae 10. Switchin Element Group 5, pae 6. See Aency Listins pae 10 Switchin Element Group 5 pae 6. UL Listed Class I, Group C, D; Class II, Group E, F, G; Division 1 & 2 as an outlet box only. : 3/4 NPT(F)-Riht : Copper-free**aluminum Weathertiht *LC See Switchin Element Groups 1, 2, 3, 4 pae 6. UL Listed Class I, Group C, D; Class II, Group E, F, G; Division 1 & 2 as an outlet box only. : 3/4 NPT(F)-Left, Riht, Top : Copper-free** aluminum Weathertiht *SC Switchin Element Groups 1, 2, 3, 4, 7 pae 6. Explosion Proof IIB-T4. Separate electrical and set point adjustment compartments. Aluminum. Six-place screw-type teminal block is standard. Riht hand electrical outlet: PF 3/4 (F) *J4 See Switchin Element Groups 1, 2, 3, 4 pae 6. RT RS -RT: 3/4 NPT(F)-Riht -RS: M20 x 1.5-Riht Standard terminal block : 316SS : 3/4 NPT(F)-Riht Manual reset only Standard terminal block Mini Hermet Type JIS/RIIS Approved (IIC T6) 316SS housin 1/2 NPT(M) electrical connection JH Contains UL Listed and CSA Certified hermetically sealed switchin elements. : 3/4 NPT(F) - Top : Copper-free** aluminum Weathertiht: NEMA 4/4X *BA Separate electrical and set point adjustment compartments Weathertiht Standard terminal block UL Listed with WV option - pae 10. CENELEC/BASEEFA with CL option pae10. CSA Certified with CS option - pae10. *B3 *B4 *B5 *B6 See Aency Listins pae 10. Switchin Element Groups 1, 2, 3,4,5 pae 6. RB See Aency Listins p. 10. See Switchin Element Group 7 pae 6. See Aency Listins pae 10. See Switchin Element Group 5 pae 6. See Switchin Element Group 6 pae 6. : 3/4 NPT(F)-Left, Riht : M20 x 1.5-Left, Riht : M20 x 1.5-Left, Riht : Cast Iron : 3/4 NPT(F)-Left, Riht : Cast Iron Switchin Element Groups 1, 2, 3, 4, 5 pae 6. * Not recommended for direct mount where vibration is expected. Housin should be securely mounted to a flat surface (bulkhead or panel rack) or pipe stanchion. ** Consult factory. Reistered Quality System to ISO

6 Switchin Element Group/Housin Compatibility Group 1 A, AA, B, BB, BD*, C**, E, EE, G, J, JJ, K, KA, L, S, W, Y *BD only available with RN, RT housins Switchin Element Service Contact Type Type AC Ratin Volts Amps Volts DC Ratin Resistive Amps Volts Amps Dead Band Multiplier SPDT DPDT Desinator SPDT Normal Service AC 15. 4* 30 5* K KK Low Power Gold Contacts Wide Dead Band AC * 1 - KA DPDT N/ A J JJ G GG AC or DC 11. 5* A AA Wide Dead Band DC Narrow Dead Band DC Very Wide Dead Band DC Very Hih Capacity DC Manetic Blow-Out Hi Ambient Temperature Ratin F Manual Reset - Decreasin Pressure (Automatic Actuation Increasin Pressure) Manual Reset - Increasin Pressure (Automatic Actuation Decreasin Pressure) Corrosion Resistant Explosion Proof Hermetically Sealed Switchin Element Corrosion Resistant Explosion Proof Lower Power Service Hermetically Sealed Gold Contacts Explosion Proof EEx d IIC T * L LL 5. 5* * E EE C N/ A 10 Step 3: Switchin Element 2NN-K3-P1-D1A-PP Cross reference compatibility chart above to ensure that switchin element will fit in housin. Sinle Switchin Element SPDT (1) SPDT Double Switchin Element DPDT (2) SPDT Synchronized actuation/deactuation at increasin/decreasin Set Points. Group 2 GG, KK, LL, YY K, KA, G, L, C, N, S, Y, W Switchin Elements Screw Terminals other switchin elements AWG Color coded wire leads except when terminal blocks are specified. Group 3 T Group 4 H 15. Minimum 10.0 Maximum Group 5 AF, AG, EF, EG, JF, JG **C micro switch is not available in L, S, and TA housins Group 6 EB, JB, JR, KB S N/ A B BB 5 5* Y YY 5. 3* W N/ A * 30 5* 1 - KB * 30 5* N/ A * AF * 30 5* EF * 1 - JR N/ A JF BD D M Group 7 D, M N/ A N/ A N/ A EB AG EG N/ A JB JG N/ A 6 Reistered Quality System to ISO 9001

7 Notes 1. Double switchin elements have wire leads except when supplied in housins RN, RT RB, B3, B4, B5, B6 and J4. Terminal blocks are standard in these housins. 2. Dead band multipliers must be applied to the typical dead band fiures iven in the specification tables on pae Switchin element ambient temperature limits: -65 to 400 F (-54 to 200 C) B, Y, W -65 to F (-54 to 120 C) A, E & J -40 to 167 F (-40 to 75 C) AF, AG, EB, EF, EG, JB, JF, JG, JR, KB -13 to 158 F (-25 to 70 C) BD -65 to 180 F (-54 to 80 C) others 4. The hermetically sealed switchin element capsule is UL Listed, CSA Certified and SAA Approved as an explosion proof snap switch accordin to the followin table with conditions and exceptions specified in Note 3. Aency UL Listed CSA Certified SAA Approved O-Rin (Wetted) Hazardous Location Conditions Class I, Groups A, B, C & D Class II, Groups E, F & G; Division 1 & 2 Ex s IIC T6 IP65 Class 1, Zone 1 DIP T6 IP65 Desinator Buna N (Standard) P1 EPR Y1 Viton S1 Desinator AF, EF, AG, EG, KB, EB, JB, JF, JG, JR AF, EF, AG, EG, KB, EB Step 3: Switchin Element 2NN-K3-P1-D1A-PP 5. Switchin Elements W & Y have Eliloy sprins. 6. Certain switchin elements can handle reater voltae and/or amperae. Consult the factory should your requirements exceed catalo values. switchin elements above except BD are UL Reconized and CSA Certified. The DC current ratins marked with an asterisk (*) are not UL Listed but have been verified by testin and/or experience. 7. Use of BD switchin elements may allow certain weathertiht housins to be used in flammable or hazardous atmospheres. Contact the factory for details. See NEMKO/CENELEC block under Aency Listins on pae 10. CAUTION: The switchin element assembly has been precisely positioned in the housin at the factory for optimum performance. Any inadvertant movement or replacement in the field will derade performance, could render the device inoperative, and can void the warranty unless factory authorized procedures are followed. Step 4: O-Rin Seal 2NN-K3-P1-D1A-PP iven process. Empirical experience by users should be the final uide. Alternate materials based on this are enerally available. 2. This table shows allowable minimum and maximum temperatures for o-rins. Notes 1. Wetted parts have been selected as representin the most suitable commercially available material for use in the service intended. However, they do not constitute a uarantee aainst corrosion or permeation, since processes vary from plant to plant and concentration of harmful fluids, ases or solids vary from time to time in a Size O-Rin Note C1A pressure port is standard on AH and BH housins. D1A is standard on all other housins. F C Viton 32 to 0 to 120 Buna-N EPR 32 to to 93 Step 5: Pressure Port 2NN-K3-P1-D1A-PP Desinator Brass D1A 1/4" NPT(F) 316SS C1A Brass D4C 9/16-18" (F) SAE Straiht Thread O-Rin Seal 316SS C4C Reistered Quality System to ISO

8 Step 6: 2NN-K3-P1-D1A-PP Neoprene Accessory / Option & Description cover asket (o-rin) to make L, S and TA explosion proof housins weathertiht. CENELEC (BASEEFA) Certified pressure switch. Available with B3, B4, B5, and B6 housins. See Aency Listins on pae 10. CSA Certified pressure switch. Available with PP, NN, RB, RN, RT, B3 and B6. Housin has earth (round) lu. Cemented cover asket on weathertiht housins. Sealed electrical lead adapter. Provides protection to housin interior, switchin element dry side of pressure sensin assembly from condensate in electrical conduit and corrosive atmospheres. CSA Certified Classes I, II, Ill, Groups A, B, C, D, E, F, G; Type 4, 4X. (Protrudes approximately 2" from housin.) Universal Universal terminal box. Stainless steel. 1/2" NPT(F). CENELEC Certified EEx d lic T4, T5, T6. terminal box. Stainless steel. M20 x 1.5(F). CENELEC Certified EEx d llc T4, T5, T6. Universal terminal box. Stainless steel. 1/2" NPT(F). FM Approved and CSA Certified. Explosion proof Class I, Groups A, B, C, D; Class II, Groups E, F, G, Class Ill Division 1 (NEMA 4X, IP65) Breather Drain Crouse Hinds ECD-15 for Hazardous Locations Class I, Groups C & D; Class II, Groups E, F and G; on S or SC housins only. Sintered metal plu in weathertiht housin. Terminal block. 6-place compression type standard in B and R series housins. Optional in LC and SC housins. 6-place screw-type standard in J4 housin. Carbon steel body with stainless steel adjustin nut. Pipe (stanchion) mountin kit for (1-1/2 to 2" pipe). Order as a separate line item for UL Listed and CSA Certified pressure switches. Ta, fiber. Attached with plastic wire to housin. Stamped with customer specified tain information. Ta, stainless steel. Attached with stainless steel wire to housin. Stamped with customer specified tain information. (2 lines, 18 characters and spaces per line.) Stainless steel body, force transmitter and adjustin nut for corrosive environments. Standard on stainless steel housins Explosion proof and weathertiht electrical junction box with screw terminals. 3/4" NPT(F) top or riht conduit connections as required. UL Listed and CSA Certified Class I, Groups A, B, C & D; Class II, Groups E, F & G; Division 1 & 2. (L, LC, S, SC and TA housin.) Includes cover o-rin for weathertih t applications. Oversize stainless steel nameplate or separate stainless steel ta. Permanently attached to housin. Stamped with customer specified tain information. Funicidal Epoxy Chained varnish. Covers exterior and interior except workin parts. coatin. Exterior only. Polyamide epoxy with 316SS piment. cover with captive screws to conform to former JIC specification X is used as a suffix to the Model Number for special requirements not keyed elsewhere in the model number by an X. Each X must be completely identified in the text of the order or inquiry. When more than one X is required, use X followed by the number of such items. For example, X3 means three separate otherwise unidentifiable requirements Desinator Representative Information Only: A slash and a three-diit number (/000) appearin after the last Accessory desinator letter in the model number denotes special administrative procedures with respect to factory representatives. It is not part of the model number and is used only by the factory or a factory representative. CG CL CS GC GG HB HBME HT KK LL PB PK PP RR SB TB TT VV YY ZZ X 8 Reistered Quality System to ISO 9001

9 Reistered Quality System to ISO Pivot Seal Aency Listins CSA JIS/RIIS 1 & 2 Division G; F, E, Groups II, Class D; C, B, Groups I Class Locations Hazardous For iston P prin S ousin H t Elemen Switchin Diaphram & O-Rin Port Pressure & Size 3, 2 l l A 3 B E, C, BB, B, AA, A, JJ, J, H, GG, G, EE, LL, L, KA, KK, K, JL, YY Y, W, T, S,, N l l A l Al CS Required Maximum: 300 VAC VDC except LL, KK, GC ZZ, 4) (CSA Enclosed Weathertiht and Purpose General iston P prin S ousin H t Elemen Switchin Diaphram & O-Rin Port Pressure & Size 3, 2 l Al PP (General Purpose) E, C, BB, B, AA, A, J, H, GA, GG, G, EE, L, KA, KK, K, JL, JJ, YY Y, W, T, S, N, LL, ll A l Al CS required NN 4) (Enclosed except LL GC, RN 4) (Enclosed RT BB, B, AG, AF, AA, A, G, EG, EF, EE, E, C, JL, JJ, J, H, GA, GG, L, KA, KK, K, JG, JF, YY Y, W, T, S, N, LL, RB 4) (Enclosed M DA, D, only) Reset (Manual IIB T4 Proof Explosion Ratin: Locations Hazardous For iston P prin S ousin H t Elemen Switchin Diaphram & O-Rin Port Pressure & Size 3, 2 l l A 4 J E, C, BB, B, AA, A, JJ, J, H, GG, G, EE, S, N, LL, L, KA, KK, K, YY Y, W, T, S1, P1, Y1 D, C, : M; 4 2, 1, Size: A, Type: Thread C B, NN, BB, PK, PB, RR, PP, TT, SB, V V X YY,, T6 II6 Proof Explosion Ratin: Locations Hazardous For iston P prin S ousin H t Elemen Switchin Diaphram & O-Rin Port Pressure & Size 3, 2 l l A H J EF, AG, AF, JG JF, EG, S1, P1, Y1 D, C, : M; 4 2, 1, Size: A, Type: Thread C B, PK, BB, RR, PP, T, T V V, YY

10 Aency Listins CENELEC/ BASEEFA CENELEC/ NEMKO Equipment for Flammable Atmospheres Ratin: EE x d IIC T6 per EN & 018 BAS Certification Number EX 85B1304 Piston Sprin 2, 3 Housin B3, B4, B5, B6 Switchin Elemen t A, AA, AF, AG, B, BB, C, E, EE, EF, EG, G, GG, H, J, JF, JG, JJ, K, KA, KK, L, LL, N, S, T, W, Y, YY Diaphram & O-Rin Pressure Port & Size Equipment for Flammable Atmospheres Ratin: EEx d IIC T6 per EN & 018 BAS Certification Number X Piston Sprin 2 3, Housin BG, BH Switchin Elemen t AF, AG, EF, EG, JF, JG Diaphram & O-Rin P1, S1, Y1 Equipment for Flammable Atmospheres Ratin: EEx d/e IIC T6 NEMKO Certification Number Piston Sprin Housin RS, RN, RT Switchin Elemen t BD Diaphram & O-Rin Notes 1. Internal/external case round (earth) screws provided. 2. Customer/user is responsible for electrical hook-up to terminal block and JIS/RIIS codes. Pressure Port & Size : C, D, M Size: 1, 2, 4 Thread Type: A, B, C Pressure Port & Size CL Required except CS, GC, GG, KK, LL, ZZ PP, RR, TT, VV, YY, PK and compliance with CENELEC Approximate Shippin Weihts Actual shippin weihts may vary from charted values because of product material, confiurations and packain requirements. Housin Weiht (lbs) (ks) AG, BG, H AH, BH, NN, N3, N4, PP, P3 2 1 RB, RM, RN N RS, RT Notes 1. PK Pipe Kit adds approximately 1.5 lbs (0.7 ks). 2. TB Junction Box adds approximately 4.5 lbs (2 ks). Housin Weiht (lbs) (ks) LC, SC 4 2 BA, L, S TA 6 3 B3, B4 8 4 B5, B Reistered Quality System to ISO 9001

11 Glossary of Terms SOR reconizes that there is no industry convention with respect to terminoloy and definitions pertinent to pressure switches. This lossary applies to SOR. Pressure Switch A bi-stable electromechanical device that actuates/deactuates one or more electrical switchin element(s) at a predetermined discrete pressure/vacuum (Set Point) upon risin or fallin pressure/vacuum. Adjustable Rane The span of pressure between upper and lower limits within which the pressure switch can be adjusted to actuate/deactuate. It is expressed for increasin pressure. Set Point That discrete pressure at which the pressure switch is adjusted to actuate/deactuate on risin or fallin pressure. It must fall within the adjustable rane and be called out as increasin or decreasin pressure. Dead Band The difference in pressure between the increasin set point and the decreasin set point. It is expressed as typical, which is an averae with the increasin set point at mid rane for a pressure switch with the standard K switchin element. It is normally fixed (non-adjustable). Hermetically Sealed A welded steel capsule with lass-to-metal, factory-sealed, electrical leads that isolates the electrical switchin element(s) from the environment. Overrane The maximum input pressure that can be continuously applied to the pressure switch without causin permanent chane of set point, leakae or material failure. Proof Pressure The maximum input pressure that can be continuously applied to the pressure switch without causin leakae or catastrophic material failure. Permanent chane of set points may occur, or the device may be rendered inoperative. Repeatability The ability of a pressure switch to successively operate at a set point that is approached from a startin point in the same direction and returns to the startin point over three consecutive cycles to establish a pressure profile. The closeness of the measured set point values is normally expressed as a percentae of full scale (maximum adjustable rane pressure). SPDT Switchin Element Sinle-Pole, Double Throw (SPDT) has three connections: C Common, NO Normally Open and NC Normally Closed, which allows the switchin element to be electrically connected to the circuit in either NO or NC state. DPDT Switchin Element DPDT is two synchronized SPDT switchin elements which actuate toether at increasin set point and deactuate toether at decreasin set point. Discrete SPDT switchin elements allow two independent circuits to be switched; i.e., one AC and one DC. The synchronization linkae is factory set, and is not field adjustable. Synchronization is verified by connectin test lamps to the switchin elements and observin them o On simultaneously at actuation and Off simultaneously at deactuation Reistered Quality System to ISO

12 Dimensions Dimensions in this catalo are for reference only. They may be chaned without notice. Contact the factory for certified drawins for a particular model number. Dimensions in this catalo are expressed as millimeters over inches (Linear = mm/in.). Weathertiht Non-Hazardous Service (NEMA 4, 4X, IP65) * /4 NPT(F) 7.1 Diameter Hole.28 (Typical 2) /4 NPT(F) Both sides on N3 HSG WD. X.53 LG. Slot (Typical 2) * * Process Process Housin: N6 Housin: NN, N3, N4 **NN: Shown N4: Add Manual Reset Button WD. X Slot (Typical 2) 3/4 NPT(F) LG. Process RM & RS = M20 x 1.5 RN & RT = 3/4 NPT(F) WD. X LG. Slot (Typical 2) Process Housin: RB Manual Reset 12 Housin: RM, RN, RS, RT Reistered Quality System to ISO 9001

13 Conventional Explosion Proof Hazardous Service Dimensions Dimensions in this catalo are for reference only. They may be chaned without notice. Contact the factory for certified drawins for a particular model number. Dimensions in this catalo are expressed as millimeters over inches. (Linear = mm/in.) /4 NPT(F) Diameter Hole (Typical 4) Process Diameter.28 Hole (Typical 4) 3/4 NPT(F) Process Housin: L Class I, Group C, D; Class II, Group E, F, G; Division 1 & 2 Housin: LC Class I, Group C, D; Class II, Group E, F, G; Division 1 & /4 NPT(F) (Typical 3) /4 NPT(F) (Typical 3) Diameter Hole (Typical 4) Process Diameter.28 Hole (Typical 4) Process Housin: S Class I, Group C, D; Class II, Group E, F, G; Division 1 & 2 Housin: SC Class I, Group C, D; Class II, Group E, F, G; Division 1 & 2 Reistered Quality System to ISO

14 Conventional Explosion Proof Hazardous Service Dimensions Dimensions in this catalo are for reference only. They may be chaned without notice. Contact the factory for certified drawins for a particular model number. Dimensions in this catalo are expressed as millimeters over inches. (Linear = mm/in.) Hole (Typical 2) B3 & B6 = 3/4 NPT(F) B4 & B5 = M20 x 1.5 J4 = 3/4 PF(F) (RH only) Vent 1/4 NPT(F) (LH & RH) Plued * * Mountin Diameter Holes (Typcial 2) 3/4 NPT(F) Standard 1/2 NPT(F) Optional Process Housin: B3, B4, B5, B6, J4 Class I, Group B, C, D; Class II, Group E, F, G; Division 1 & 2 Housin: TA Class I, Group A, B, C, D; Class II, Group E, F, G; Division 1 & 2 Hermetically Sealed Explosion Proof Hazardous Service Factory Sealed Leads Minimum Lenth 3/4 NPT(F) Standard 1/2 NPT(F) Optional Diameter 3.00 Minimum Installation Clearance Factory Sealed Leads Color Coded and Marked 1/2 NPT(M) Hex * Clearance for Mountin Bolts Diameter Weathertiht Cover Screw Flexible Seal Retainer Alternate Style for 316SS Housins Hex Process Process 1/4 NPT(F) Shown *For 1/2 NPT(F) Add Housin: BA Class I, Group A, B, C, D; Class II, Group E, F, G; Division 1 & 2 14 Housin: AG, AH, BG, BH, JH Class I, Group A, B, C, D; Class II, Group E, F, G; Division 1 & 2 Reistered Quality System to ISO 9001

15 Dimensions Dimensions in this catalo are for reference only. They may be chaned without notice. Contact the factory for certified drawins for a particular model number. Dimensions in this catalo are expressed as millimeters over inches. (Linear = mm/in.). General Purpose Non-Hazardous Service Diameter Mountin Holes (Typical 2) Process Housin: H3 Open Bracket /4 NPT(F) Both Sides on P3 HSG WD x 13.5 LG Slot (Typical 2) Process Housin: PP, P3, NEMA 1 Reistered Quality System to ISO

16 Dimensions Dimensions in this catalo are for reference only. They may be chaned without notice. Contact the factory for certified drawins for a particular model number. Dimensions in this catalo are expressed as millimeters over inches. (Linear = mm/in.). Switch Mountin Holes (Typical 4) Holes for 5/16 Diameter Mounted Hardware. Furnished with U Bolts for Mountin to 1-1/2 to 2 Pipe Pressure Port Side C Switch Mountin Holes L Pipe (Reference) Perpendicular Mountin Parallel Mountin Pipe Mountin Kit: PK Diameter (2 Places) * /4 NPT(F) (3 Places) /4 NPT(M) Close Nipple Attached to Standard 3/4 NPT(F) Conduit Junction Box with Terminal Block: TB *Dimension shown is approximate and based on a 5-thread enanement. Form 219 (05.02) Printed in U.S.A West 105th Street, Lenexa, Kansas Toll Free Reistered Quality System to ISO 9001