The INVALCO Series 468 is a diaphragm-operated, two-way, single-port valve for fuel regulation and precise burner control, including thermostat service and fuel shutoff in oil, gas, glycol and distillate service. Ductile iron body, soft plug for tight shutoff, adjustable spring, and NACE adaptable for sour service.
Key specifications
Body / body cover / lower diaphragm case: Ductile iron A-395
End connections: 3/4" or 1" FNPT
Diaphragm operator: Cast aluminum upper case, 10 sq. in. nylon-reinforced Buna-N diaphragm; 70 psi max. working, 100 psi max. containment
Maximum working pressure: 150 psi
Temperature: -20 to 250 °F
Stem: 303 stainless steel
Trim: Stainless steel throttling with Buna-N insert
Packing: Buna-N O-ring standard
How to specify / order
3/4" FNPT: model DSG-7501B-468, 3/4" orifice, part number 80004509, Cv 6, Cg 160, 150 psi, 10 lb
1" FNPT: model DSG-101B-468, 1" orifice, part number 80004303, Cv 12, Cg 350, 150 psi, 10 lb
Per the bulletin, specify model number, part number and trim description; part numbers apply only to the exact configuration described
State if NACE construction is required
Only pages 1-2 of the bulletin were used; the parts list pages were not reviewed for this listing. Bulletin notes: the diaphragm area is printed "10 sp. in." (sq. in.); the orifice sizes carry an asterisk with no matching footnote; and the notes skip number 2.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter (INVALCO) bulletin SSIN053 Rev 0.0 (11/16) - pages 1-2 read; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.