| Item | Water Regulating Valve |
| Application | Head Pressure Control With Non-Corrosive Refrigerants |
| Connection | Flange , Flanged |
| Connection Size | 2 1/2" |
| Design Pressure | 320 psi , 320 psig |
| For Use With | Non Corrosive Refrigerants |
| Port | 2 1/2" |
| Port Type | 2 1/2" |
| Repair Kit | STT18A-601R |
| Type | 2 Way |
| Actuation Mechanism | Pressure |
| Body Material | Cast Iron |
| Disc Material | Brass |
| Flow Rate - Maximum | 250 GPM |
| For Media | Water/Glycol |
| For Media State | Liquid |
| For Refrigerant Type | R-22, R-404A, R-502, R-507 |
| For Repair Kit - Manufacturer Model Number | STT18A-601R |
| Internal Parts Material | Aluminum Bronze |
| Maximum Operating Pressure | 320 psi |
| Number Of Ports | 2 |
| Number Of Ways | 2 |
| Opening Point Adjustment | Adjustable |
| Opening Pressure - Maximum | 260 psi |
| Opening Pressure - Minimum | 160 psi |
| Operating Temperature - Maximum | 170°F |
| Orientation | Vertical |
| Overall Height | 13 1/2" |
| Overall Length | 6 3/4" |
| Overall Width | 7" |
| Pipe Connection Size | 2 1/2" |
| Pipe Connection Type | Flange |
| Pressure Connection Size | 1/4" |
| Pressure Connection Type | Flare |
| Product Type | Pressure Regulating Valve |
| Replacement Cartridge - Manufacturer Model Number | SEP81A-601R |
| Specific Valve Action | Opens on Rise |
