Kunkle 6230 Safety Relief Valve — 3/4″ NPT, E Orifice (Steam ASME Section VIII, EPR Seat)
SKU: KUN-6230-EE-L-3_4
The Kunkle 6230 is an oversized-outlet, full-nozzle safety relief valve with stainless steel trim (nozzle and disc) for steam boilers, air compressors, and pressure vessels where greater outlet capacity is required. This 3/4″ NPT inlet variant — E orifice, 0.216 in² — is available across a 3–300 PSI set pressure range for Steam ASME Section VIII service with an EPR seat, carrying ASME Sections VIII and XIII (UV stamp), National Board Certified. Body: bronze (BRZ B584-C84400); oversized side outlet (1-1/4″) with dual control rings for precise blowdown adjustment. Specify your required set pressure when requesting a quote.
Specifications
| Body Material | Bronze (BRZ B584-C84400) |
| Trim Material | Stainless Steel (nozzle SA351-CF8 / disc SA479) |
| Inlet Size | 3/4" NPT |
| Outlet Size | 1-1/4" NPT |
| Outlet Configuration | Oversized side outlet |
| Orifice Designation | E |
| Orifice Area | 0.216 in² |
| Set Pressure | 3–300 PSI |
| Temperature Range | -60°F to 425°F |
| Capacity — Steam VIII | 155–3367 |
| Flow Coefficient | 0.878 |
| Service Media | Steam |
| ASME Certification | ASME Sections VIII and XIII (UV stamp), National Board Certified |
| National Board Certified | Yes |
| Seat Type | EPR |
| Weight | 2-3/4 lb |
| Overall Height | 7-1/2 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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