Models, 3, and SME Section VIII, ir/steam/gas/liquid, UV National oard ertified. lso available for Vacuum Service. PED ertified for Non-Hazardous Gas. pplications ir/gas compressors - intercoolers - aftercoolers. Liquid filled pressure vessels/systems - SME Section VIII (UV). Pressure vessels - containing gas, air, liquid or steam. Including tanks and receivers. Vacuum systems including pumps, tanks and equipment. Optional materials for low temperature - cryogenic applications. Oil/gas separators. Overpressure relief and protection of pumps, tanks, lines and hydraulic systems. y-pass relief or pressure regulation. Options Threaded cap. (variation 0) Threaded cap with gag. (variation 02) Plain lever. (variation 03) Plain lever with gag. (variation 04) Plain lever with vibration dampener. (variation 05) Packed lever. (variation 06) Packed lever with gag. (variation 07) Features vailable with soft seat. Threaded cap is standard (back pressure tight). Hex on valve nozzle provides for easy installation. Warn ring offers easy adjustability. Pivoting disc design corrects misalignment and offers exceptional performance. Guide to nozzle ratio reduces friction. Full nozzle design for optimum flow performance. Threaded side outlet for piped off discharge to eliminate fugitive emissions. Model Model Descriptions Model : Full nozzle design. Stainless Steel (SS) warn ring and disc with brass/bronze base. ronze/brass body and bonnet. Model 3: Full nozzle design. ronze/brass body and bonnet. 36 SS trim (base, disc and disc holder). Model : Same as model except resilient seat/seal. Superior leak-free performance. FM approved with 36 SS base for fire pump installations in DD and DE sizes 2. Model : Same as model 3 except resilient seat/seal. Superior leak-free performance. ronze body and bonnet. 36 SS trim (base, disc and disc holder). Pressure and Temperature Limits Models, : Steam 3 to 250 psig [0.2 to.2 barg] -3 to 406 F [-5 to ] Models 3, : Steam 3 to 300 psig [0.2 to.7 barg] -3 to 425 F [-5 to ] Models, : ir/gas/liquid 3 to 300 psig [0.2 to.7 barg] -3 to 406 F [-5 to ] Models 3, : ir/gas/liquid 3 to 400 psig [0.2 to 6.5 barg] -3 to 425 F [-5 to ] Vacuum 6" to 2" HG [0 to 00 mbarg] 300 F [4 ] Maximum back pressure 50 psig [3 barg] - threaded cap and packed lever 3. SME standard valves for air or steam service must have lift lever. For steam boilers and generators. 2. Requires Variation 0 for specific set pressure or variations listed below for adjustable relief pressure settings: Variation : 60-5 psig [4. -.6 barg], Variation : 5-5 psig [.7 - barg], or Variation : 6-250 psig [. -.2 barg] 3. ack pressure increases set pressure on a one to one basis, and reduces capacity. ack pressure in excess of % of set pressure is not recommended.
Specifications - Models, 3,, and Models, 3,, SME Section VIII, Steam/ir/Gas/ Liquid, UV National oard ertified. lso available for Vacuum Service Service Recommendations for Resilient Seat/Seal Materials Seat/Seal Materials Service Recommendation ir, nhydrous mmonia, utane, arbon Dioxide, Diesel Oil, Ethyl hloride, Ethyl Ether, Freons # UN-N (-40 to 275 F) [-40 to 35 ] and, Fuel Oil, Gasoline, Helium, Hydrogen Sulphide, Kerosene, Lube Oil, Natural Gas, Nitrogen, Oxygen (Gas), Propane, Propylene, Sulphur Dioxide, Vinyl hloride cetone, ir, myl lcohol, niline, enzine, utane, arbon Disulphide, arbon Tetrachloride Dowtherm and E, Ethyl hloride, Ethylene, Ethylene Glycol, Ethyl lcohol, Gasoline, Hexane, Viton (-5 to 406 F) [-26 to ] Hydrogen Sulphide, Isobutyl lcohol, JP - 4 Fuel, JP - 5 Fuel, Kerosene, Lube Oil, Natural Gas, Naphtha, Nitrogen, Propane, Propylene, Propyl lcohol, Sulphur Dioxide, Toluene, Trichloroethylene, Turpentine, Water, Xylene Silicone (-0 to 406 F) [-73 to ] ir, Helium, Nitrogen, Oxygen (Gas) Ethylene Propylene (-70 to 400 F) [-57 to 5 ] Steam, Hot Water ir, nhydrous mmonia, utane, utyl lcohol, astor Oil Denatured lcohol, Ethanol, Ethyl Neoprene (-45 to 300 F) [-43 to 4 ] lcohol, Freons (, 3, 4 and ), Glycols, Natural Gas and Silicate Esters Note. These recommendations are a guide only. For the final selection of the proper material, your experience with available elastomers of various lading fluids should be considered. Specifications Model 2 Orifice onnections Maximum Set Pressure - Dimensions, in [mm] - pprox. Number NSI Standard psig [barg] Weight Inlet Outlet - 4 3-5 Plain Threaded Packed lb [kg] Lever ap Lever *D D /2" [.7] 3/4" [.0] 300 [.7] 400 [6.5] 2 3 / [60] 5 / [4] 3 / [3] 7 /4 [4] [] 3 [.4] *D 7 D /2" [.7] " [25.4] 300 [.7] 400 [6.5] 2 3 / [60] 5 / [4] 3 / [3] 7 /4 [4] [] 3 [.4] *DD 3 D 3/4" [.0] 3/4" [.0] 400 [6.5] 2 3 / [60] 5 / [4] 3 / [3] 7 /4 [4] [] 3 [.4] *DD 3, D 3/4" [.0] " [25.4] 400 [6.5] 2 3 / [60] 5 / [4] 3 / [3] 7 /4 [4] [] 3 [.4] *DE 3 D " [25.4] " [25.4] 400 [6.5] 2 5 / [67] 5 / [4] 5 / [] 7 /2 [] / [232] 3 [.4] *ED E 3/4" [.0] /4" [3.] 300 [.7] 00 [6.] 2 5 / [67] 2 [5] 3 /4 [2] 7 5 / [4] 3 / [23] 4 [.] *EF 3 E /4" [3.] /4" [3.] 00 [6.] 3 [76] 2 [5] / [232] [3] 3 /4 [24] 4 [.] *FE F " [25.4] /2" [3.] 300 [.7] 700 [4.3] 2 7 / [73] 2 3 / [60] 7 / [25] 3 /4 [2] /2 [267] 6 [2.7] *FG 3 F /2" [3.] /2" [3.] 700 [4.3] 3 [76] 2 3 / [60] [254] 7 / [5] 5 / [270] 6 [2.7] *GF G /4" [3.] 2" [50.] 300 [.7] 600 [4.4] 3 /4 [3] 2 5 / [67] /4 [26] / [257] 3 /4 [2] [3.6] *GH 3 G 2" [50.] 2" [50.] 600 [4.4] 3 /4 [3] 2 5 / [67] /4 [26] / [257] 3 /4 [2] [3.6] *HG H /2" [3.] 2 /2" [63.5] 300 [.7] 500 [34.5] 3 /2 [] 2 3 /4 [70] 3 [330] / [23] /2 [3] [5.0] *JH J 6 2" [50.] 3" [76.2] 300 [.7] 500 [34.5] 4 [2] 3 /4 [3] 4 /2 [36] /2 [3] 5 / [34] 5 [6.]. Maximum temperature controlled by resilient seat/seal material. 2. Replace asterisk with desired Model Number. Data applicable to all models. 3. vailable with SS trim (models 3 and ) only. 4. Maximum pressure on steam is 250 psig. 5. Maximum pressure on steam is 300 psig. 6. For dimensions: pressures above 0 psig [4 barg] add.25" [3. mm] to the overall height. 7. Special variation required ( - Threaded ap, 4 - Plain Lever, - Packed Lever).. Special variation required (3 - Threaded ap, 4 - Plain Lever, - Packed Lever).. 00 psig for liquid service or high temp alloy spring.. 600 psig for liquid service or high temp alloy spring.. 367 [25.3] for plain lever with gag. Dimensions are for reference only. Plain Lever Threaded ap Packed Lever
Specifications - Models, 3,, and Models, 3,, SME Section VIII, Steam/ir/Gas/ Liquid, Parts and Materials - Models, 3,, Threaded ap Nozzle 2 rass, or 23 lloy 45, (SS, S35-FM 5 Models 3, only) 2 O-ring ody 6 Teflon 3 ody ronze, 54 lloy 4400 4 Warn Ring SS, 743-FM 5 Disc SS, 47-36 6 Set Screw Nut SS - 7 Set Screw rass, 6 Seal Teflon Retainer Ring SS, 33-36 Disc Holder rass, 6, (SS 35-FM Models 3, only) Guide 3 rass, 6 Guide Lock Nut 7 rass, 6 Shield 7 SS, 67-36 onnet O-ring 6 Teflon 3 Screw SS, ommercial - 4 oiled Spring Pin SS, 33-302 5 Spring SS: 33-36 or 33-T63/lloy steel: 6-H or 637-X750 6 onnet 4 rass, 6-H02 Spring Step rass, 6 Stem rass, 6 Wire and Seal SS wire and lead seal, ommercial ap rass, 6 ompression Screw rass, 6 Jam Nut SS - or rass, 6 23 ap O-ring UN-N 24 ody Plug rass, 6 [ /4" - NPT] 25 Gag Screw Steel -/Zinc Plated 26 Gag Screw Plug SS - 27 Gag Screw Gasket Teflon 6 5 4 3 7 6 5 4 3 2 25 26 27 23 24 Threaded ap Parts and Materials - Models and Soft Seat, F to J Orifice No. Part Name Disc SS 47-36 SS 47-36 Ring, Retainer SS 33-36 SS 33-36 Disc Holder rass, 6 SS 35-FM 33 Molded Seat Parts and Materials - Models and Soft Seat, D and E Orifice No. Part Name 34 Spindle rass, 6 SS 47-36 35 Disc Holder rass, 6 SS 47-36 36 Retainer rass, 6 SS 47-36 37 O-ring Seat 3 Seat Retainer Screw SS - SS - 36 37 35 33 Soft Seat F to J Orifice 34 3 Soft Seat D and E Orifice. Material Letter Designation UN-N - Ethylene Propylene (EPR/EPDM) - E Neoprene - N Silicone - S Viton - V 2. F through J orifice nozzle material is ronze, 62. 3. G through J orifice guide material is ronze, 54, lloy 4400. 4. F through J orifice bonnet material is ronze, 54, lloy 4400. 5. D and E orifice, *FG, and *GH nozzle material is SS, S47-36. 6. For threaded cap and packed lever only. 7. For J orifice only (not shown).. Gag screw ships with valve, not installed.. For threaded cap and packed lever gag option only.
Specifications - Models, 3,, and Models, 3,, SME Section VIII, Steam/ir/Gas/Liquid, 24 26 23 25 32 33 34 27 2 2 30 3 Packed Lever Parts and Materials - Model Packed Lever ap O-ring UN-N 70 Duro, ommercial Jam Nut rass, 6 Lift am SS, 743 FM otter Pin Steel, ommercial Lever Zinc Plated Steel, 23 Drive Screw SS, ommercial 24 Retainer Nut rass, 6 25 Retainer O-ring UN-N 70 Duro, ommercial 26 Lift am O-ring UN-N 70 Duro, ommercial 27 ap ronze, 54 lloy 4400 2 Lift Nut SS, 47 36 2 Lift Washer SS, 47 36 30 Stem rass, 6 3 ompression Screw rass, 6 32 2 Gag Screw Steel -/Zinc Plated 33 3 Gag Screw Plug SS - 34 3 Gag Screw Gasket Teflon Parts and Materials - Model Plain Lever 5 4 3 6 Steel: 23/23M w/coating Spring SS: 33-302 SS: 33-36 lloy steel: 6-H onnet rass, 6 3 Jam Nut rass, 6 4 ompression Screw rass, 6 5 Lever Steel, w/coating 6 ap luminum, nodized Lift Nut SS, 47-36 LIft Washer SS, 47-36 Rivet Steel, ommercial Screw SS, ommercial Gr. - Spring Step rass, 6 2 Gag Screw Steel -/Zinc Plated Plain Lever Model - vailable with Tri-lover dapter Inlet. orrosion preventative coating. 2. Gag screw ships with valve, not installed. 3. For threaded cap and packed lever gag option only. Model Inlet Orifice Outlet ZDE " D " ZEE " E /4" ZFG /2" F /2" ZGG /2" G 2" ZGH 2" G 2" ZHH 2" H 2 /2" ZJJ 2 /2" J 3" Tri-lover (Inlet only)
Models, 3,, SME Section VIII, Steam/ir/Gas/ Liquid, Model Number Position Example 2 3 4 5 6 7 3 4 5 6 2 J H M 0 K E 0 3 0 0 Model, 3,, onnection Model - Male x Female Threaded or NPT Orifice D, E, F, G, H, J Inlet Size - /2" [5 mm] F - /4" [32 mm] D - 3/4" [ mm] G- /2" [40 mm] E - " [25 mm] H-2" [50 mm] Seat/Seal Material M - Metal-to-metal S - Silicone - UN-N V - Viton E - EPR N - Neoprene Variation (0 to ) Number provided only by manufacturer to cover specific feature or option. 0 - Threaded cap 02 - Threaded cap with gag 03 - Plain lever 04 - Plain lever with gag 05 - Plain lever with vibration dampener 06 - Packed lever 07 - Packed lever with gag - Threaded cap (*D with " outlet) 3 - Threaded cap (*DD with " outlet) 4 - Plain lever - D orifice with " outlet - Packed lever - D orifice with " outlet 60 - SP threads with threaded cap Design Revision Orifice Size Models D E F G H J 3 Valve Service J - Liquid SME Section VIII (Standard ap/packed Lever only) K - ir/gas SME Section VIII (Plain Lever/Packed Lever required for air) L - Steam SME Section VIII (Plain Lever/Packed Lever required) M - Non-ode Liquid (Standard ap/packed Lever only) N - Non-ode ir Gas P - Non-ode Steam Q - Vacuum (Standard ap/packed Lever only) Spring Material E - SS F - lloy Steel (high temperature) Set Pressure 3 psig [0.2 barg] (0003) to 00 psig [62 barg] (000) Vacuum 6" HG [0 mbarg] (0006) to 2" HG [00 mbarg] (002)