Dump Valves - fwmurphy.com

1 DV-98110 BRevised 11-99 Catalog Section 15(00-02-0325)Dump ValvesDV Series For Separators/Scrubbers to 2000 psi ( MPa)[137 bar] Vessel Pressure Unique Positive-Seal, Field-ReplaceablePiston Seal and Body Seat Assembly Operates on 30 70 psi (207 483 kPa) [ bar] Control Pressure Built-In Valve Open/Closed Pop-Up Indicator Button Compatible with Murphy Level ControlsDescriptionThe DV850, DV875, and DV2100 are pneumati-cally controlled dump Valves . They open andclose automatically by pneumatic control from aMurphy L1200 NDVOR or similar level con-troller and dump valve operator.

2 Diaphragmactuated, the DV series dump Valves operate at30 70 psi (207 483 kPa) [ bar] and upto 2000 psi ( MPa) [137 bar] vessel Operating Pressures offers stainless steel versions of the DV850,DV875, and DV2100 Series. NOTE:All stainless steel versions carry CanadianRegistration Number designed for compressor scrubbers,these Valves can be used to dump any liquidscompatible with the valve's Temperature:-30 to +300 F ( to +149 C)Valve Operating Pressure:30 70 psi (207 483 kPa) [ bar]Maximum Process Pressure:2000 psi ( MPa) [137 bar]Stem Seal:Carbon/Graphite Filled PTFE Upper Case Coating:Electroless Nickel Plated on 12L14 Carbon Material:DV850, DV875, and DV2100:Electroless Nickel Plated 12L14 Carbon SteelDV850SS, DV875SS, and DV2100SS.

3 ANSI316 (UNS31600) Stainless SteelWetted Parts:Body: 12L14 Carbon ANSI 316 stainless ; ANSI 316 stainless : ANSI 316 stainless Seat: ANSI 316 stainless Seal: ANSI 316 stainless Pending500 Vessel Pressure (PSIG)Minimum Control Pressure (PSIG)100015002000025303540455055606570 Operating vs. Vessel PressureDV850/875DV2100 MURPHYMATIC FRANK Drain ConnectionPiston SealBody SeatVent Valve Open/ClosedIndicator Button BodySeatPistonSealBGCDEP ressure Inlet PortAPositive-SealDetailDV850/SSDV875/SS DV2100/SSA6-3/4 (171)6-3/4 (171)6-3/4 (171)B7-9/64 (181)7-9/64 (181)7-59/64 (201)C3-9/32 (83)3-9/32 (83)3-63/64 (101)D2-19/64 (58)2-19/64 (58)2-5/32 (55)E1 NPT1 NPT2 NPTF1/2 NPT3/4 NPT1 NPTG1/8 NPT1/8 NPT1/8 NPTNOTE:Dimensions are in inches and (millimeters)Operating PressuresReplacement Parts55000219 :Diaphragm Assembly (all models)55000224.

4 Seat Kit ( piston seal & body seat) forDV850, DV875, DV850SS, DV875SS55000225 :Seat Kit ( piston seal & body seat) forDV2100 Optional Adapter Bushing55050617 :2 NPT to 1 NPTR ising LevelTripsDVOR ising Level ShutdownL1200 (with snap-switch)Minimum control pressure 30 psi (207 kPa) [ bar]L1200 NDVORDump Valve Operator,Filter/Regulator with MURPHYGAGE MURPHY NU-MATIC Dump Valve: DV850,DV875, or DV2100 Air Supply Maximum300 psi ( MPa)[ bar]Condensate OutBall ValveUnionUnionElectricalConduitMinimum control pressure30 psi (207 kPa) [ bar]Dump Valve OperationAs condensate rises in the scrubber, the float onthe Murphy L1200 NDVOR rises and trips itspneumatic valve.

5 The valve opens allowing pres-sure to enter the dump valve pilot chamber. Oncethe pressure enters the pilot chamber it forces thediaphragm and valve stem forward thus openingthe valve seat and releasing condensate throughthe valve stem and out the drain (a pop up buttonindicates valve open/closed). As the condensatelevel drops, the L1200 NDVOR pneumatic valvecloses to shut off the pressure to the dump valve,allowing it to for any reason the condensate continues to risebeyond normal dump levels, model L1200 HighLevel Shutdown Switch operates the alarmand/or shuts down the MURPHYGAGE and Filter/Regulator onthe L1200 NDVOR help keep the control pres-sure clean, dry, and at proper pressure levels forsystem.

6 Always use clean, dry, instrument quality MURPHYMATIC Scrubber SystemsA complete MURPHYMATIC system for auto-matic level control of condensate in scrubbers,shown above, is available as a complete packagefrom Murphy. The SLS99A Scrubber System includes:(1) DV850 Dump Valve*(1) L1200 NDVOR Dump Valve Operator whichincludes filter/regulator and MURPHYGAGE (1)L1200 High Level Shutdown Switch*The dump valve for the SLS99B is dump valve for the SLS99C is DV875. For more information contact your nearestMurphy sales representative or to OrderSpecify model number:DV850:1 NPT Process ConnectionDV850SS *:1 NPT Process ConnectionDV875:1 NPT Process ConnectionDV875SS *:1 NPT Process ConnectionDV2100:2 NPT Process ConnectionDV2100SS *:2 NPT Process Connection AISI 316 Stainless Steel body.

7 *Stainless steel models carry Canadian Registration Number DimensionsPatent PendingPatent 3970099 Patent PendingPatent 3970099 MURPHYMATICS hipping WeightsDV850 and DV875: 9 lbs (4 kg).DV2100: 13 lbs (6 kg).Shipping Dimensions (all)7 x 7 x 11 in. (178 x 178 x 279 mm).WarrantyA two-year limited warranty on materials and workman-ship is given with this Murphy product. Details are avail-able on request and are packed with each in FRANK W. MURPHY SYSTEMS & Box 1819; Rosenberg, Texas 77471; USAtel. (281) 342-0297 fax(281) 341-6006 W. MURPHY, Rd.; Laverstock, Salisbury SP1 1QZ; +44 1722 410055 fax+44 1722 410088 W.

8 MURPHY FRANCEtel. +33 1 30 762626 fax+33 1 30 763989 MURPHY DE MEXICO, DE Antonio Rocha Cordero 300, Fracci n del Aguaje San Luis Potos , ; M xico 78384 tel. +52-48-206264 W. MURPHY PTE., 2 Tuas South Street 2, Sprintecs Bldg., #02-01/02 Singapore 638042tel. +65 863-1398fax+65 863-0208 order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any SWITCH OF CALIFORNIA41343 12th Street WestPalmdale, California 93551-1442; USAtel. (661) 272-4700 fax(661) CORPORATION1620 Hume Highway; Campbellfield, Vic 3061; Australia tel.

9 +61 3 9358-5555 fax+61 3 W. MURPHY Box 470248; Tulsa, Oklahoma 74147; USA tel. (918) 627-3550 fax(918) 664-6146 28221FM 29422 USA ISO 9001UK ISO 9002 NATIONALACCREDITATIONOF CERTIFICATIONBODIESS ince 1939