The INVALCO Series 465 is a small diaphragm-operated, two-way, single-port valve most often used as a fuel valve: thermostat service, fuel shutoff, and oil, gas, water, glycol and distillate service. Carbon steel body, soft Buna-N plug for tight shutoff, and a small size for precise modulation. NACE (RNCE) version available.
Key specifications
Body: Carbon steel
Body cover: 416 stainless
End connections: 1/4" or 1/2" FNPT (1/4" FNPT supply connection)
Diaphragm operator: Aluminum, 3 sq. in. nylon-reinforced Buna-N diaphragm, 75 psi max. working pressure
Maximum working pressure: 125 psi
Temperature: -20 to 250 °F
Stem / plug: 303 stainless stem; Buna-N plug
Packing: O-ring
Approx. size: 9.4" tall x 4" diaphragm case; 3 lb
How to specify / order
1/4" FNPT: model DSG-2501-B-465, part number 80004484, Cv 0.5, Cg 15, 3 lb
1/2" FNPT: model DSG-5001-B-465, part number 80004492, Cv 0.5, Cg 15, 3 lb
Per the bulletin, specify model number, part number and trim description; part numbers apply only to the exact configuration described
Recommended spares: plug and stem 48012775, diaphragm 45003158, spring 45004446, O-rings 67101636, 67102310, 67101408, 67102312
State if NACE (RNCE) construction is required
The bulletin prints the stem material as "O303 Stainless Steel" (303 stainless) and its notes skip number 2. Both sizes are listed with the same Cv (0.5) and Cg (15); confirm with the factory if capacity is critical.
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 SSIN052 Rev 0.1 (12/18); 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.