Saginomiya ATX Series Thermostatic Expansion Valves, R22/R404A/R407C, External Equalizer
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Saginomiya ATX Series Thermostatic Expansion Valves are external-equalizer refrigerant control valves for refrigeration and air-conditioning systems. This family page covers 31 specified R22, R404A and R407C variants, including ATX-B flare-connection models and ATX-D solder-connection models with listed capacities from 9.49 to 285 kW.
| Product Type | Thermostatic expansion valve |
| Equalizer Type | External |
| Listed Refrigerants | R22, R404A and R407C |
| Charge Type | S charge |
| Connection Styles | ATX-B: flare connection; ATX-D: solder connection |
| Equalizer Connection | 1/4 in flare |
| Factory Superheat Setting | 5 °C |
| Maximum Body Temperature | 80 °C |
| Maximum Sensing Bulb Temperature | 120 °C for S charge |
| Maximum Working Pressure | 2.8 MPa for R404A; 3.3 MPa for R407C |
| R404A and R407C S-Charge Data | Evaporating temperature -40 to 10 °C; MOP 20 °C |
| Capacity Reference Condition | R404A and R407C: condensing temperature 38 °C and evaporating temperature 5 °C |
| Capillary Tube | 3 mm diameter × 2000 mm length |
| Sensing Bulb | 16 mm diameter × 100 mm length |
Connection and Body Groups
| ATX-34023 / 34035 / 34045 | B type: 3/8 in flare inlet and 1/2 in flare outlet. D type: 3/8 in O.D. solder inlet and 1/2 in O.D. solder outlet. H dimension 77 mm. Approximate weight 1.2 kg for B type and 1.1 kg for D type. |
| ATX-57060 / 57080 / 71110 / 71140 / 71160 | 5/8 in O.D. or 7/8 in I.D. solder inlet; 7/8 in O.D. or 1-1/8 in I.D. solder outlet. H dimension 80 mm. Approximate weight 1.3 kg. |
| ATX-12220 / 12270 / 12330 / 12420 / 12500 | 1 in O.D. or 1-1/4 in I.D. solder inlet and outlet. H dimension 82 mm. Approximate weight 1.5 kg. |
R22 Variants
| Catalog Number | Listed Capacity and Connection |
| ATX-34023DHS | R22; 12.7 kW; solder connection |
| ATX-34035DHS | R22; 19.3 kW; solder connection |
| ATX-57060DHS | R22; 34.1 kW; solder connection |
| ATX-57080DHS | R22; 45.7 kW; solder connection |
| ATX-71110DHS | R22; 62.6 kW; solder connection |
| ATX-71140DHS | R22; 79.4 kW; solder connection |
| ATX-71160DHS | R22; 91.6 kW; solder connection |
| ATX-12220DHS | R22; 126 kW; solder connection |
| ATX-12270DHS | R22; 154 kW; solder connection |
| ATX-12330DHS | R22; 187 kW; solder connection |
| ATX-12420DHS | R22; 237 kW; solder connection |
| ATX-12500DHS | R22; 285 kW; solder connection |
R404A Variants
| Catalog Number | Capacity at CT 38 °C / ET 5 °C |
| ATX-34023BUS | 9.49 kW; flare connection |
| ATX-34023DUS | 9.49 kW; solder connection |
| ATX-34035BUS | 14.1 kW; flare connection |
| ATX-34035DUS | 14.1 kW; solder connection |
| ATX-34045DUS | 17.9 kW; solder connection |
| ATX-57060DUS | 23.9 kW; solder connection |
| ATX-71140DUS | 56.3 kW; solder connection |
| ATX-71160DUS | 64 kW; solder connection |
| ATX-12220DUS | 88.3 kW; solder connection |
| ATX-12270DUS | 108 kW; solder connection |
| ATX-12330DUS | 132 kW; solder connection |
R407C Variants
| Catalog Number | Capacity at CT 38 °C / ET 5 °C |
| ATX-34023DPS | 13 kW; solder connection |
| ATX-34035DPS | 20 kW; solder connection |
| ATX-57060DPS | 35.1 kW; solder connection |
| ATX-57080DPS | 47.1 kW; solder connection |
| ATX-71110DPS | 64.3 kW; solder connection |
| ATX-71140DPS | 81.9 kW; solder connection |
| ATX-71160DPS | 94.2 kW; solder connection |
| ATX-12270DPS | 158 kW; solder connection |
Typical applications: The ATX Series is specified for water chillers, air-conditioning systems, freezers, refrigerators and brine coolers, including refrigeration systems with hot-gas defrosting.
Apexon Supply provides B2B sourcing, replacement sourcing and technical-alignment support for Saginomiya ATX Series thermostatic expansion valves. Verify the complete catalog number, refrigerant, connection dimensions, capacity rating conditions and superheat requirements against the system design before replacement.
For an RFQ, submit the complete ATX catalog number, refrigerant, required capacity, quantity and operating conditions. Most qualified RFQs receive a response or quote within 12 hours.
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