Kunkle 912 Safety Relief Valve — 3/4″ x 1-1/4″ NPT, E Orifice (Steam ASME Section VIII, Metal Seat)
SKU: KUN-912-EM-L-3_4X1_1_4
The Kunkle 912 is a full-nozzle safety relief valve with bronze body and bonnet with stainless steel warn ring and disc, built for air and gas compressors, liquid-filled pressure vessels, steam systems and vacuum service. This 3/4″ x 1-1/4″ NPT variant — E orifice, 0.216 in² — is available across a 3–250 PSI range for Steam ASME Section VIII service with a metal seat, carrying ASME Section VIII (UV stamp), National Board Certified. Temperature range -320°F to 406°F; threaded side outlet allows piped-off discharge to eliminate fugitive emissions. Specify your required set pressure when requesting a quote.
Specifications
| Body Material | Bronze (B584 Alloy 84400) |
| Trim Material | Brass (B16), 316 SS disc |
| Inlet Size | 3/4" NPT |
| Outlet Size | 1-1/4" NPT |
| Outlet Configuration | Side outlet |
| Orifice Designation | E |
| Orifice Area | 0.216 in² |
| Set Pressure | 3–250 PSI |
| Temperature Range | -320°F to 406°F |
| Capacity — Steam VIII | 155–2826 |
| Flow Coefficient | 0.878 |
| Service Media | Steam |
| ASME Certification | ASME Section VIII (UV stamp), National Board Certified |
| National Board Certified | Yes |
| Seat Type | Metal |
| Weight | 4 lb |
| Overall Height | 7-5/8 in |
Need a quote or have a technical question?
Call (324) 888-1524 or submit a quote request online. Requests received before 3 PM ET are typically quoted the same business day.
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