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METRICPRECISION ORIFICESANDMINIATURECHECK VALVESedderseup atsmn logoee tac.blsaaslccaiohrerZMZMNVCo ZMCntgtilosn hilnaootra hecocf nlyetfseiyle lab e obeThkicanov. s a ferewie ZMNSUS - INSERTIB - INSERTwrdw anO’Keefe Controls Co.CATALOG MD-2MONROE, CT USA

Metal Orifice Assemblies2METRIC THREADED INSERTSDescriptionLengthSet screw style threaded orifice inserts canbe installed in fittings, manifolds or customparts to establish flow rates of liquids orgases. Standard size orifices range from.10 mm to 1.60 mm.InternalHEXThreadSizeType ZMBidirectional FlowOrificePart Number SystemTYPEOrifice ThreadZM—Size No.—Size— Length No. — MaterialStandard SizesOrificeStandard SizeLengthSize Dia.*RangeThread Size 1.091.191.321.401.521.60Thread SizeM3 x .5 mmHex Size4 mm 44-351.5 mmThread SizeM4 x .7 mmHex Size5 mm 54-352.0 mmThread SizeM5 x .8 mmHex Size6 mm 64-632.5 mmSS18-8 SSThread SizeM6 x 1.0 mmHex Size8 mm 84-633.0 mmThread SizeM8 x 1.25 mmHex Size10 mm 104-634.0 mmThread SizeM10 x 1.50 mmHex Size12 mm 124-635.0 mm*Consult factory for larger orifice sizes.ExampleSTypeSize No. Thread Size1.ZM—10— M3—(Type ZM)(.26 mm diameter)2.ZM—31— M6—(Type ZM)(.79 mm diameter)Length No. M at e r i a l4—SS(4 mm length) (Stainless Steel)8—SS(8 mm length) (Stainless Steel)P.O. BOX Q TRUMBULL, CT USA 06611 PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2010 ALL RIGHTS RESERVEDe-mail ca@okcc.com website www.okcc.com

Metal Orifice Assemblies3METRIC THREADED INSERTS - NOSE SEALSDescriptionThis type precision orifice includes ano-ring for sealing against a flat surface. Theset screw style can be installed in fittings,manifolds and custom parts for accurate flowrate control of liquids or gases.SpecificationsThread Sizes – M3.5 x 0.6, M5 x 0.8,M6 x 1, and M8 x 1.25.Flow Direction – Suitable for flow in eitherdirection.Flow – See flow chart for air flow on lastpage.KV Range – .00030 to .171Orifice Diameter Accuracy – .013 mmFluid Media – Air, Water, Gases and Liquidscompatible with materials of construction.Dimensions – See drawings this page.Materials of Construction –Brass or 303 SS Body.Fluorocarbon or Nitrile O-ringMaximum Operating Pressure –1400 kPaMaximum Operating Temperature –Nitrile O-ring 65 oC.Fluorocarbon O-ring 120 oC.OrificeSizeSize Dia.NumberNumber(mm) Range4.105.136.157.188.209.2310.26Thread11.28M3.5 x ead20.51M5 x .7129.74M6 x 131.794-8132.8133.8435.8937.94Thread38.9739.99M8x 2.18892.26942.39Type ZMNSABHexCTh'dO-RingTh'dDimensions - .73.814.453M8.016.34.835.594InstallationSeal against flatsmooth surfaceMaximumOpening ØPart NumbersThe complete part number for an orifice assembly includes Type, Size Number, ThreadSize, Body Material and O-Ring Material.BN - NitrileV - FluorocarbonEXAMPLESTypeSize Thread BodyPartNumberSizeMaterialO-RingNumberZMNS 10(.26 mm)M3.5BR (Brass)BNZMNS-10-M3.5-BR-BNZMNS 20(.51 mm)ConstructionM6SS (303 SS)VZMNS-20-M6- SS-VO-RingDimensions - mmThreadM3.5M5.0M6.0M8.0MaximumOpening Ø1.201.572.413.18P.O. BOX Q TRUMBULL, CT USA 06611 PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2010 ALL RIGHTS RESERVEDe-mail ca@okcc.com website www.okcc.comType ZMNS

Metal Orifice Assemblies4INSERTSDescriptionThe inserts shown on this page are designedto press-fit into openings accurately machinedin fittings, manifolds and custom parts. Thereis a choice of insert sizes and materials ofconstruction.ApplicationsThe inserts can be used with a wide variety offittings by accurately machining the inside ofthe fitting. The orifice is then pressed into thefitting for control of the flow rate of liquidsor gases.Manifolds or other custom assemblies thatrequire flow rate control of fluids can beaccurately machined to press fit the orificesshown on this page and on page 5.General SpecificationsMaximum Operating PressureInsert Only (see exceptions)Brass – 13,790 kPag303SS – 27,580 kPag316SS – 27,580 kPagexceptions IAS, USMaximum Differential Pressure –700 kPadFlow – See flow chart for air flow on page 7.Orifice Diameters – .10 mm to 3.18 mm. Seechart at right. Consult factory for other sizes.Orifice Diameter Accuracy – .013 mmKV Range – .0003 to .32 - See page 7.Fluid Media – Air, Water, Gases and Liquidscompatible with materials of construction.Dimensions – See drawings in right handcolumn of this page and on page 5.Press Fit – See drawings in right handcolumn of this page and on page 5.MaterialsType IA, AM, IFType IASType I B, I E, I JI K, UType ILType IC, I DType US– Brass or 303 SS– Brass, 304 SS Screen– 303 SS– Brass– 316 SS– 303 SS, 304 SS ScreenOrificeSizeSize Dia.NumberNumbermm 2.642.772.873.053.18Type AM3.25 / 3.28 Dia.3.68 Dia.Press Fit Into3.20 / 3.22 Dia.CONSTRUCTIONType AM4-35Type IA4-63Type IA3.96DIMENSIONSmm6.55 / 6.58 Dia.Type IAS4-35Press Fit Into 6.50 / 6.53 Dia.CONSTRUCTIONType IB4-25Type IC4-63Type ID4-125Type IAS3.96DIMENSIONSmm6.55 / 6.58 Dia.Press Fit Into 6.50 / 6.53 Dia.CONSTRUCTIONType IE4-35IntegralScreenType IF4-63Type I J4-125Type IK4-20Type IL4-35Type U4-63Type US4-35Type IBDIMENSIONSmm6.353.182.40 / 2.41 Dia.2.21 / 2.26 Dia.Press Fit Into Bore2.36 / 2.39 Dia.CONSTRUCTIONCustom InsertsWhere quantity requirements exceed 1000pieces, custom inserts can be manufacturedin brass, stainless steel, or special materials to the dimensions required. Provide adimension drawing, material specifications, and quantities to our technical servicedepartment to obtain price and deliveryquotations.P.O. BOX Q TRUMBULL, CT USA 06611 PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2010 ALL RIGHTS RESERVEDDIMENSIONSmm7.014.98e-mail ca@okcc.com website www.okcc.com

Metal Orifice Assemblies5INSERTSType ICDIMENSIONSmmPress Fit Into Bore4.84 / 4.85 Dia.4.80 / 4.91Dia.Press Fit Into6.29 / 6.316.32 Dia.6.34DIMENSIONSmm11.2Press Fit Into10.48 / 10.50Type IJDIMENSIONSmm6.86Press Fit Into9.61 / 9.649.65 Dia.9.66Press Fit Into3.12 / 3.14DIMENSIONSmm2.53 Dia.2.54ConstructionType UPress Fit Into7.10 / 7.12DIMENSIONSmm7.117.14 Dia.7.1519 10-32 ThreadConstructionDIMENSIONSmm2.03Press Fit Into2.49 / 2.51Construction10.51 Dia.10.521.52Type IL10-32 ThreadConstruction4.83Type IEDIMENSIONSmm6.864.67 / 4.72 Dia.3.18Type IDType IFConstructionType IKPress Fit Into1.54 / 1.55DIMENSIONSmm1.573.15 Dia.3.18ConstructionType US5.84DIMENSIONSmmPress Fit Into7.10 / 7.127.15 Dia.7.181.56 Dia.1.58.79Spherical R.ConstructionConstructionScreenBoth EndsConstructionOrifice DiametersPart NumbersThe complete part number for an orifice assembly includes Type, Size Number, Body Material and Options.EXAMPLESSize BodyTypeNumber MaterialOptionsIB6 (.15 mm)SS–See chart on page 4 for sizes availablefor each insert type. Consult factory forother sizes.PartNumberIB-6-SSAM10 (.26 mm)SS–AM-10-SSIA20 (.51 mm)Brass–IA-20-BRFlow DirectionMetal orifice assemblies can be used forflow in either direction. The data onpage 7 is for a flow direction as shown inthe right column on page 4 and throughoutthis page.P.O. BOX Q TRUMBULL, CT USA 06611 PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2010 ALL RIGHTS RESERVEDe-mail ca@okcc.com website www.okcc.com

Check Valves6METRIC ECONOMY LINEDescriptionThis miniature check valve line employs a free floating stainless steel orelastomeric ball, which allows free flowin one direction; reverse flow is prevented. The valves are suitable for air,water, inert gases, light oil and liquidscompatible with the materials of construction. The valves are fast acting andare suitable for long life applications.Features All metal construction option Long life operation Low costGeneral SpecificationsMaterials of ConstructionBody – Brass or 303 SSBall Stop – Brass or 303 SSBall - Material options:Size440C-SS(SS)FlourocarbonNitrile(BN)Ball StopSymbol-Check ValveFREE FLOWPart NumbersTypes ZMNBC, ZMNVCType ZMC(V)M3.5 M5 M6 M8 AB HexCMaximum TemperatureNitrile – 65 CFluorocarbon - 120 CFREE FLOWConstructionMaximum Operating PressureType ZMCBrass Body– 3500 kPa (SS Ball)SS Body– 7000 kPa (SS Ball)Brass or SS Body- 875 kPa(elastomeric ball)Type ZMNBC, ZMNVC1400 kPa (SS Ball)875 kPa (elastomeric ball)Seat LeakageSS Ball20 sccm (max) air flow at 175 kPaNitrile or Fluorocarbon Ball0 sccm @ 350 kPa (air flow) 5 sccm @ 175 kPa (air flow)Thread SealantFor type ZMC straight threads useLoctite 542 thread sealant or equal.Th'dO-RingDimensions - .012.73.814.453M8.016.34.835.594Flow Capacity(air flow)TypeSizeKV(SLPM)@ 350 * data from flow chartInstallationThe complete part number for an orifice assembly includes Type, Fixed Numbers,Thread Size, Body/Ball Stop Material and Ball Material.Seal against flatsmooth surface(Fixed Numbers are the valve body orifice and differential pressure above which the valve will allow flow in the free flow direction.)EXAMPLESTypeThreadSizeZMC(no nose seal)M3.5ZMNBC(nose seal-Nitrile)M5ZMNVC(nose seal Fluorocarbon)M6ZMC(no nose seal)M8Body/Ball StopBR(Brass)Part NumberBall MaterialType Fixed Size B/BS BallSSZMC - 20 - 0 -M3.5 - BR - SS(440C)BZMNBC - 31 - 0 - M5 - SS - B(303 SS)(Nitrile)BRVZMNVC - 62 - 0 - M6 - BR - VSS(Brass)SS(303SS)(Fluorocarbon)SS(440C)ZMC - 94 - 0 - M8 - SS - SSMaximumOpening ØO-RingDimensions - mmThreadM3.5 x 0.6 mmM5.0 x 0.8 mmM6.0 x 1 mmM8.0 x 1.25 mmType:ZMNBCZMNVCMaximumOpening Ø1.201.572.413.18P.O. BOX Q TRUMBULL, CT USA 06611 PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2010 ALL RIGHTS RESERVEDe-mail ca@okcc.com website www.okcc.comRev. 1 09/02/09

Inchesmm5510152030mm Hg in. Hg127254381508762Supply PressureVacuum 23.874.785.706.617.538.469.3810.3SLPM – Standard Liters Per 250.0210.0330.84essentially the same as for Type B. Above data supercedes previous publications.Above data obtained with Type B restrictor. Flow rates for other metal restrictors 7.519.321.1230.0120.0100.0230.58 O'KEEFE CONTROLS CO. 2008 ALL RIGHTS RESERVED e-mail ca@okcc.com website www.okcc.comP.O. BOX Q TRUMBULL, CONNECTICUT 06611 USA PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331Standard Conditions: 21.1oC, 101.3 kPa / 70 F, 14.7 90.0750.0750.075CVKV510152030Size NumberInchesmm12725438150876240.0050.130.00035 0.00061 0.00086 0.0012 0.0015 0.0019 0.0025 0.0028 0.0034 0.0038 0.0043 0.0050 0.0055 0.0067 0.0073 0.0080 0.0088 0.0096 0.0110.00030 0.00052 0.00073 0.0010 0.0013 0.0016 0.0021 0.0024 0.0029 0.0032 0.0037 0.0043 0.0047 0.0057 0.0062 0.0068 0.0075 0.0082 0.00940.0040.10psig10.035 0.06450.09 0.16100.12 0.22150.16 0.28200.19 0.33250.22 0.39300.25 0.44400.30 0.54500.36 0.65600.42 0.75700.48 0.86800.54 0.96900.60 1.071000.66 1.17mm Hg in. .7482.7551.6620.6689.5CVKVSize NumberOrificeDiameterSupply PressureVacuum LevelOrificeDiameterChoked FlowChoked FlowMetal Orifice Air Flow – SLPM7