MicroMachined Silicon modular pressure sensor

MicroMachined Silicon modular pressure sensor Configurable High Accuracy High Temperature Performance For Industrial, Test and Measurement, and Aerospace Applications Low Pressure from 10 in-h 2 O to 2.5 psi and Standard Ranges from 5 to 5000 psi Metric Ranges: 25 mbar to 350 bar MM Series Pressure Transducers Standard Optional Most Popular Models in Stock! Fast Delivery for Thousands of Configurations! MMG050VP5C0T3A5, features 50 psig, mv output, 0.40% accuracy, cable termination. U Customer Selectable Features U Fast Delivery U High Accuracy U Up to ±0.03% Linearity Available Accuracies: ±0.05% FS SL Accuracy ±0.08% FS SL Accuracy ±0.20% FS SL Accuracy ±0.40% FS SL Accuracy U Premium Temperature Performance U road Compensated Range U Gage, Absolute, arometric, Vacuum, U Compound and Differential U 5-Point NIST Traceable Calibration MMG100C1P5C6T3A5, features 100 psig 4 to 20 ma output, 0.40% accuracy, mini DIN termination. MMG10WVP3C1T2A2, features 0 to 10 in-h 2 O, mv output, 0.08% accuracy, twist-lock termination. 1 Week Delivery on Custom Configurations MMDWU015VP5C1T3A5, features 15 psid, mv output, 0.40% accuracy, twist-lock termination. -1 All models shown actual size. Note: SL = est Straight Line.

one source for all your pressure measurement applications Adjustable zero and span potentiometers MMG1.0KC1P2J0T3A5P, 4 to 20 ma output, 1000 psig, 0.05% accuracy, 2 m (6') cable, and optional potentiometers. MMG100C1P5C6T3A5, features 100 psig 4 to 20 ma output, 0.40% accuracy, mini DIN termination. All models shown actual size. Gage Pressure Low Pressure Absolute Pressure Differential Pressure Vacuum Ranges Compound Ranges arometric Pressure OMEGA has developed a rapid delivery system for its new Micro Machined Silicon product line. You can have your pick of pressure ports, electrical connections, pressure range and units, thermal range and accuracy and accessories like trim pots. There are over 1-million possible combinations. OMEGA can deliver reasonable quantities of almost any combination within 5 working days. We have an easy-to-use configurator online at omega.com where you can select the transducer with the exact specifications for your project. We also have the most popular configurations stocked for same day shipment! OMEGA s micro-machined piezoresistive pressure transducers have a proven record in high performance commercial, automotive, test and measurement and aerospace applications. The piezoresistive process uses strain gages molecularly embedded into a highly stable silicon wafer. The silicon wafer is diced into individual die which each contain a full strain gage bridge. The die is mounted in a sealed chamber protected from the environment by glass to metal seals and a pressure sensitive stainless steel diaphragm. A small volume of silicone oil transfers the pressure from the diaphragm to the strain bridge. The construction provides a very rugged transducer with exceptional accuracy, stability and thermal effects. A unique design ruggedizes the transducers by providing secondary fluid containment in the event of a diaphragm rupture. MMS20A015C1P31T6A5, 15 psia 4 to 20 ma output, 2" sanitary fitting, 0.08% accuracy, twist-lock termination. -2 U Five Accuracies U Ninety-Two Pressure Ranges U Ten Electrical Outputs U Four Thermal Ranges U Fourteen Pressure Ports U Five Electrical Terminations U Over 1,000,000 Combinations!

MM Series MMG1.0KC1P4J0T3A5P, 4 to 20 ma output, 1000 psig, 0.20% accuracy with potentiometers. CALE CONNECTION COLOR mv 5/10V ma LACK EXC Common EXC WHITE + SIG + Out + CAL GREEN SIG SHUNT SHUNT RED + EXC + EXC + EXC Common Specifications G/A/V/CG/aro Approvals: RoHS and CE Calibration: 5-point NIST traceable andwidth: DC to 1 khz typical Response Time: < 1 ms CE Compliant: IEC61326 Emissions: IEC550022 Class Electrostatic Discharge Immunity: IEC1000-4-2 EM Field Immunity: IEC61000-4-3 EFT Immunity: IEC61000-4-4 Surge Immunity: IEC61000-4-5 Conducted RF: IEC61000-4-6 Rate Power Frequency Magnetic Field: IEC61000-4-8 Minimum Resistance etween ody and Any Wire: 100 MΩ @ 50 Vdc Weight: 115 to 200 g (4 to 7 oz) (depending upon configuration) Environmental Operating Temperature: -45 to 121 C (-49 to 250 F) Protection: Cable: 2 m (6') IP67 mini DIN: IP65 Twist-Lock and M12: IP65 Conduit 2 m (6') Cable with 1 2 NPT Conduit Fitting: IP67 Mechanical Wetted Parts: 316L stainless steel Media: Compatible with 316L SS Pressure Cycles: 1 million minimum MMG100C1P5C6T3A5, features 100 psig, 4 to 20 ma output, 0.40% accuracy, mini DIN termination. M12, MINI DIN AND SOLDER PINS CONNECTION PIN mv 5/10V ma 1 + EXC + EXC + Supply 2 EXC Common Supply 3 + OUT + Output NC 4 OUT NC NC -3 MMG1.0KC1P2C2T3A5, features 1000 psig, 4 to 20 ma output, 0.05% accuracy, cable termination with 1 2 NPT. TWIST-LOCK CONNECTION PIN mv 5/10V ma A + EXC + EXC + EXC EXC Common EXC C + OUT + OUT + SHUNT D OUT + SHUNT + SHUNT E NC NC NC F NC NC NC Long Term Stability (1-Year): ±0.1% FS typical Shock: 50 g, 11 ms half sine, vertical and horizontal axis Vibration: 5-2000-5 Hz, 30 minute cycle, curve L, mil-spec 810 figure 5-2-2, vertical and horizontal axis Overpressure Gage Pressure: 10-in H 2 O: 10 times span 1 psi: 6 times span 2.5 psi to 3500 psi: 4 times span 5000 psi: 15,000 psi max Overpressure Absolute Pressure: 5 psia: 6 times span 2.5 psia to 3500 psia: 4 times span 5000 psia: 15000 psi max Secondary Containment Gage/Diff/Vac/Compound: 10 in-h 2 O to 5 psi: To 1000 psi 15 to 1000 psi: To 3000 psi 1500 to 5000 psi: To 15,000 psi Absolute/arometric: 5 to 1000 psi: To 6000 psia 1500 to 5000 psi: To 15,000 psia Excitation 3 mv/v: 10 Vdc (ratiometric 5 to 10 Vdc) 10 mv/v: 10 Vdc (ratiometric 5 to 10 Vdc) 0 to 5 Vdc: 10 to 30 Vdc @ 10 ma 0 to 10 Vdc: 15 to 30 Vdc @ 10 ma 4 to 20 ma: 9 to 30 Vdc (9 to 20 Vdc above 229 F) ipolar Amplifiers: Same as corresponding outputs from above compound and some differential pressure models

MM Series Sanitary Process Sensors Using Micro-Machined Silicon Technology 10 mv/v, 0 to 5 Vdc, 4 to 20 ma Outputs Gage Pressure: 10 inh 2O to 600 psi (25 mb to 41 bar) Absolute Pressure: 5 to 600 psi (345 mb to 41 bar) Compound Gage: ±10 inh 2O to ±15 psi (±25 mb to ±1 bar) Vacuum (Negative Gage): 0 to -10 inh 2O to 0 to -15 psi (25 mb to 1 bar) arometric Ranges: 0 to 32 inhg to 26 to 32 inhg Sanitary Pressure Transducers and Transmitters Twist-lock style. 1 1 2 or 2 " Tri-Grip TM Fitting PX429S15-015GV, shown smaller than actual size. mini DIN style. Fast Delivery! Stock to 1 Week on Most Models U High, 0.08% Accuracy U Solid State Sensor for Durability U Excellent Long Term Stability U Welded Stainless Steel Construction U 316L SS Wetted Parts U Shock and Vibration Rated U High Overpressure Rating U Ruggedized with Secondary Containment System The MM Series micro-machined silicon transducers with 1 1 2 or 2" sanitary fittings are ideal for pressure or level CIP applications 5.21 (0.20) 60.97 (2.40) 74-03 ø22.25 ø63.91 (2.52) " flange PX429S20 2" flange Standard Ø = Diameter Mating connector (not shown) in food processing, beverage or bio/pharmaceutical applications as well as industrial applications that require a rugged, high accuracy transducer. The micro-machined silicon sensor provides a transducer with excellent long term stability. The modular construction allows for fast delivery of most configurations and fittings. COMMON SPECIFICATIONS SANITARY Accuracy: 0.4% to 0.05% best straight line (linearity, hysteresis and repeatability combined) compound gage models calibrated in positive direction only Calibration: 5-point NIST traceable calibration with zero and span values, calibrated in horizontal direction Zero alance: ±0.5% FS typical ±1% max (for ranges 2.5 psi ±1% typ. ±2% max) Span Setting: ±0.5% FS typical ±1% max (for ranges 2.5 psi ±1% typ. ±2% max) 5.21 (0.20) 60.97 (2.40) -4 ø22.25 ø50.39 (1.98) PX419S15 1½" flange 5.21 (0.20) 60.97 (2.40) PX419S20-100AV, shown smaller than actual size. Operating Temperature Range: -15 to 115 C (-5 to 240 F) Compensated Temperature Range: Ranges 5 psi: 4.4 to 60 C (40 to 0 F) Ranges > 5 psi: -4 to 85 C (25 to 185 F) Temperature Compensation: Zero and Span Shift Over Compensated Range Ranges 25 psi: Zero: 1.00% Span: 0.70% Range = 5 psi: Zero: 0.80% Ranges > 5psi: Zero: 0.50% 26 & 26H arometric Range: Zero: 0.90% ø22.25 Minimum Isolation etween Case and Output Terminations: 100M Ω @ 50 Vdc Pressure Cycles: 1 million, min Long Term Stability (1-Year): ±0.1% FS typ. Shock: 50 g, 11 ms half sine shock, (under test) Vibration: ±20 g (under test) andwidth: DC to 1 khz typical Response Time: <1 ms Fill Fluid: NEOEE M5 food grade Approved to 3A Sanitary Specification 74-03 CE Compliant: ø63.91 Meets industrial (2.52) emissions and immunity standard PX429S20 2" flange IEC61326 for industrial locations

MM Series Sanitary Process Sensors High Accuracy Pressure Transducers Piezoresistive Design With High Temperature Performance All images shown smaller than actual size. Cable style. mini DIN and M12 style. PX419S Series Twist-lock style. PX409S Series PX409 Cable Connection Color mv 5/10V ø22.8 ma (0.9) lack EXC Common Supply White + SIG + Output NC Green SIG NC NC Red + EXC + EXC + Supply PX459S M12 connector. Conduit backend PX409C PX419/PX459 Pinout 28 Pin mv (1.1) 5/10V ma½ NPT TH D 1 + EXC + EXC + Supply 2 EXC Common Supply 3 + SIG + Output NC Integral cable backend PX409 4 SIG NC NC PX429S Series PX429 Twist-Lock Pinout Pin mv 5/10V ma A + EXC + EXC + Supply EXC Common Supply C + SIG + Output NC D SIG NC NC E NC NC NC F NC NC NC NC = No Connection. hex PT d Conduit backend PX409C 71.1 (2.8) 28 (1.1) ½ NPT TH D 25.4 (1.0) hex ¼ - 18 NPT Twist-lock backend PX429 2 connector bac end Ø 20.2 (0.8) Integral cable backend PX409 Serial # and range identify high port 50.8 (2.0) 78.7 (3.1) ) hex 15 psid and below d 8 NPT Twist-lock backend PX429 end mini DIN backend PX419 Vent with porous plug (gage units only) Vent with porous plug (gage units only) 2 through cable Environmental Protection: IP65 or IP67 depending Vent with upon porous electrical plug (gage units only) termination Pressure mini DIN Rating: backend PX419 ½ and 2" Tri Grip TM 5 (compatible (0.2) with Tri Clamp ) OUTPUT SPECIFICATIONS Vent with porous plug Specifications (mv/v (gage Output) units only) Output: 10 mv/v: ratiometric 5 to 10 Vdc Supply: 5 to 10 Vdc Fitting: 600 psi using suitable clamp Over Pressure: 4 x rated pressure to maximum rated flange pressure Secondary Containment: 6 x rated pressure to a maximum of 2000 psi (not in clamp) Specifications (Amplified Voltage Output) Output/Supply: 0 to 5 Vdc: 10 to 30 Vdc 0 to 10 Vdc: 15 to 30 Vdc Wetted Parts: 316L SS Weight: 285 g (10 oz) Specifications (4 to 20 ma Output) Output/Supply: Output: 4 to 20 madc Supply: 9 to 30 Vdc [9 to 20 Vdc above 105 C (229 F)] max loop res Ω = (Vs-9) x 50-5

MM Series Sanitary Process Sensors US output US Output Sanitary Fitting Pressure Transducer Connect Directly to Your PC or Laptop Gage, Absolute, Compound Gage, Vacuum and arometric Pressures 10 inh2o to 600 psi (25 mb to 41 bar) MM Sanitary US Series Ø = Diameter 74-03 Standard US SANITARY SPECIFICATIONS Accuracy: 0.08% typical best straight line, 0.% max (linearity, hysteresis and repeatability combined) compound gage models calibrated in positive direction only Calibration: 5-point NIST traceable calibration with zero and span values calibrated in horizontal direction Zero alance: ±0.5% FS typical ±1% max (for ranges 2.5 psi ±1% typical ±2% max) Span Setting: ±0.5% FS typical ±1% max (for ranges 2.5 psi ±1% typical ±2% max) Operating Temperature Range: -15 to 95 C (-5 to 203 F) Compensated Temperature Range: Ranges 5 psi: 4.4 to 60 C (40 to 0 F) Ranges > 5 psi: -4 to 85 C (25 to 185 F) Temperature Compensation Zero and Span Shift Over Compensated Range: Ranges 2.5 psi: Zero: 1.00% Span: 0.70% Range = 5 psi: Zero: 0.80% Ranges > 5psi: Zero: 0.50% 26/26H arometric Range: Zero: 0.90% Minimum Isolation etween Case and Output Terminations: 100M Ω @ 50 Vdc Pressure Cycles: 250,000, minimum Long Term Stability (1-Year): ±0.1% FS typical Shock: 50 g, 11 ms half sine shock, (under test) Vibration: ±20 g (under test) andwidth: DC to 3 Hz typical A to D Conversion: bit Response Time: <1 ms Fill Fluid: NEOEE M5 food grade Approved to 3A Sanitary Specification 74-03 CE Compliant: Meets industrial emissions and immunity standard IEC61326 Environmental Protection: IP65 Pressure Rating: ½ and 2" Tri Grip TM Fitting: 600 psi using suitable clamp Over Pressure: 4 x rated pressure to maximum rated flange pressure Secondary Containment: 6 x rated pressure to a maximum of 2000 psi (not in clamp) Wetted Parts: 316L SS Weight: 285 g (10 oz) ø22.25 5.21 (0.20) 60.97 (2.40) 2 m (6') ø50.39 (1.98) PX419S15 1½" flange FREE SOFTWARE INCLUDED! Each unit includes free software that converts your PC into a strip chart recorder or data logger so readings can be saved and later printed or exported to a spread sheet file. Also are software drivers for some of the most popular Laboratory programs. Laptop not. -6

MM SERIES differential Pressure Models Integral c mv/v, 0 to 5 or 0 to 10 Vdc, or 4 to 20 ma Outputs Uni-Directional or i- Directional 0-10 inh2o to 0-1000 psid MM Series Standard U Precision Micro-Machined Silicon Core U 5-Point NIST Traceable Calibration U High Stability, Low Drift U Welded Stainless Steel Construction U 316L SS Wetted Parts U Premium Temperature Performance U road Compensated Temperature Range U Durable, 1 Million Cycle Life U Ruggedized with Secondary Containment U Customized Specifications Available common SPECIFICATIONS DIFFERENTIAL Accuracy: 0.4% to 0.05% SL linearity, hysteresis and repeatability combined Minimum Resistance etween Transducer ody and Any Wire: 100 MΩ Operating Temperature: mv/v and 5 to 10 Vdc Output: -45 to 121 C (-49 to 250 F) ma Output: -45 to 115 C (-49 to 239 F) Compensated Temperature Range: 10 inh 2 O to 5 psi: - to 85 C (1 to 185 F) 15 to 1000 psi: -29 to 85 C (-20 to 185 F) Thermal Accuracy: % Span Shift over compensated temperature range Zero Span 10 inh 2 O to 1 psi: ±1.00% ±1.00% 2.5 to 1000 psi: ±0.50 ±0.50% Pressure Cycles: 1 million minimum Long Term Stability (1-Year): ±0.1% FS typical andwidth: DC to 1 khz typical Response Time: <1 ms CE Complient: Meets EN1326-1: 2006 for industrial locations Shock: 50 g, 11 ms half sine, vertical and horizontal axis Vibration: 5-2000-5 Hz, 30 minute cycle, Curve L, Mil-Spec 810 figure 5-2-2, vertical and horizontal axis Wet Wet: Wetted Parts: 316L stainless steel Wet Dry: Positive Side: 316L stainless steel Negative Side: Clean, dry, non-ionic gases Line/Static Pressure: 500 psi max applied to both sides simultaneously Proof Pressure (Differential): 10 inh 2 O range = 10 times range 1 psi range = 6 times range 2.5 to 750 psi ranges = 4 times range 1000 psi range = 3 times range Hi Side Containment Pressure (Differential): Ranges 10 inh 2 O to 5 psi: to 1000 psi Ranges 15 to 1000 psi: to 3000 psi Pressure Ports: Select Electrical Terminations: PX409: 2 m (6') cable PX409C: 2 m (6') cable with 1 2 NPT conduit thread PX419: mini DIN (mating connector ) PX429: Twist-lock, (mating connector sold separately) PX459: M12 connector PX429 Mating Connector: PT06F10-6S Weight: 200 g (7 oz) max Conduit b ø = diameter ø22.8 (0.9) ø22.8 (0.9) 68.5 (2.7) 22.8 (0.875) hex ¼ - 18 NPT 71.1 (2.8) 25.4 (1.0) hex ¼ - 18 NPT Twist-loc Serial # and range identify high port 50.8 (2.0) 78.7 (3.1) Serial # and range identify high port 50.8 (2.0) 78.7 (3.1) mini DIN 30 psid and above 15 psid and below -7

K 2 (0.8) onnector (0.8) 2 (0.8) M12 x 1 2 2 2 Ø 20.2 M12 x 1 M12 x 1 onnector 2 M12 onnector x 1 2 onnector 2 (0.8) 2 4.3 M12 (0.) x 1 4.3 (0.) 4.3 (0.) onnector 2 electrical termination4.3 (0.) 4.3 (0.) 6-Pin, or 4-Pin, or through Non- cable 4-Conductor Cable with 1 2 Non- endix M12 Connector through cable NPT through mini cable DIN Integral Cable, 2 Meter through Conduit cable Fitting PT06F10-6S mating through cable connector, ½ NPT sold separately. Ø 20.2 ½ NPT ½ NPT (0.8) conduit NPT fitting ½ NPT M12 x 1 ½ NPT 4.3 (0.) 9.4 (0.37) 4.8 (0.19) 4.8 (0.19) 4.3 (0.) 9.4 (0.37) (0.) 4.8 (0.19) 9.4 (0.37) 4.3 (0.) 4.8 (0.19) 9.4 (0.37) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 4.3 (0.) Vent with4.8 (0.19) 4.3 (0.) 9.4 (0.37) 4.8 (0.19) 4.3 (0.) porous plug 9.4 (0.37) 4.8 (0.19) 1 (gage units only) 2 6 0 1 2 1 0 2 1 6 2 0 6 6 1 0 1 2 NPT 0 1 2 6 uit fitting Dimensions Low Range.4 (0.37) Pressure Transducer4.8 (0.19) <15 psi Units 2 Mid Range Pressure Transducer arometric Transducer 15 psi Units 6 Low Range Differential Pressure Transducer <15 psi Units Mid Range Differential Pressure Transducer 15 psi Units 57.1 (2.25) 45.2 (1.78) 45.2 (1.78) 45.2 (1.78) 65.2 (2.57) 65.2 (2.57) 57.1 (2.25) 57.1 (2.25) 57.1 (2.25) 63.7 65.2 63.7 65.2(2.51) 45.2 (2.57) (2.51)(2.57) (1.78) 65.2 (2.57) 45.2 22.2 (0.875) 63.7 22.2 57.1 (0.875) 63.7 (1.78) 25 (2.51) (1) (2.51) 65.2 (2.25) 63.7 (2.57) (2.51) 57.1 (2.25) 22.2 (0.875) 65.2 22.2 (0.875) (2.57 22.2 (0.875) 9.4 20.8 20.8 20.8 (0.37) (0.82) (0.82) 63.7 9.4 9.4 49 22.2 20.8(0.875) 49.5 (0.82) 9.4 20.8 22.2 (0.875)(2.51) (0.37) (0.37) (1.93) 49 49(1.95) (0.37) 49.5 (0.82) 49 (0.82) 49.5 9.4 49.5 9.4 22.2 (0.875) 22.2 (0.875) 22.2 (0.875) (1.93) (1.93) (1.95) 22.2 (0.875) (1.93) (0.37) (1.95) (0.37) (1.95) 49 49 22.2 (0.875) 49.5 22.2 (0.875) (1.93) (1.93) (1.95) Ø = diameter pressure ports* 49 L MC MA J C A ME 49.5 L MC MA J ME L MC MA J ME C L A de L (1.93) MC MA (1.95) J MC C ME 2 A L MC 16.5 13 MA J 4) ME(0.55) L MC(0.65) MA J(0.51) C A Male Male 16.2 16.5 13 16.2 Male 16.5 16.2 (0.64) 16.5 (0.55) 13 (0.65) (0.51) 13 (0.64) (0.55) (0.65) (0.64) (0.55) (0.65) Male 16.2 (0.51) (0.51) 16.5 (0.5 Male 16.2 (0.64) 16.5 (0.55) 13 (0.65 9/16-18 UNF-2A G 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2A 1/4-18 (0.64) (0.55) NPT 1/8-27 NPT M12 x 1.5-6g 9/16-18 UNF-2A G 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2A (0.65) 1/4-18 NPT 1/8-27 (0.51) NPT 8 UNF-2A G 1/4-19TPI M12 x 1.5-6g G 1/8-28TPI 9/16-18 UNF-2A 7/16-20 UNJF-2A G 1/4-19TPI 1/4-18 NPTG 1/8-28TPI 1/8-27 NPT 7/16-20 UNJF-2AM12 x 1.5-6g 1/4-18 NPT9/16-18 UNF-2A 1/8-27 NPT G 1/4-19TPI M MD M K M12 x 1.5-6g D 9/16-18 UNF-2A G 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2 MF M MD M K M12 x 1.5-6g MF 9/16-18 UNF-2A G 1/4-19TPI MD G 1/8-28TPI M 7/16-20 UNJF-2A MF D 1/4-18 NPT 1/8-27 M de M MD M K NPT MD.7 18.3 D MF M MD M K 0) MF 12.7 18.3 12.7 M18.3 MD M K 12.7 D 18.3. 18.3 Female Female Female (0.5 12.7 18.3 1 9/16-18 UNF-2 G 1/4-19TPI 12.7 G 1/8-28TPI 18.3 Female 7/16-20 UNJF-2 1/4-18 (0. ode MA J NPT 1/8-27 NPT Female C A M12 x 1.5-6H 9/16-18 UNF-2 G 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2 1/4-18 NPT 1/8-27 NPT UNF-2 G 1/4-19TPI M12 x 1.5-6H G 1/8-28TPI 9/16-18 UNF-2 7/16-20 UNJF-2 G 1/4-19TPI 1/4-18 NPTG 1/8-28TPI 1/8-27 NPT 7/16-20 UNJF-2 M12 x 1.5-6H 1/4-18 NPT9/16-18 UNF-2 1/8-27 NPT G 1/4-19TPI M12 x 1.5-6H 9/16-18 UNF-2 G 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2 16.5 13 M12 (0.65) x 1.5-6H 9/16-18 UNF-2 G (0.51) 1/4-19TPI G 1/8-28TPI 7/16-20 UNJF-2 1/4-18 NPT 1/8-27 NPT * Dimensions may vary slightly for ranges >1000 psi. 8-8 G 1/8-28TPI 7/16-20 UNJF-2A 1/4-18 NPT 1/8-27 NPT