Quality Assurance: Every unit is tested 100% or undergoes 2.5 AQL sample testing, in accordance with API 527 standards. Certifications: Marked with the UV and NB symbols to indicate certification.
Set Pressure Tolerances: ±3% of the specified pressure. Temperature Range: -65°F to 400°F. Construction: Features a seat cap and piston made from C360 brass (ASTM B-16), a 17-7 stainless steel spring, and a silicone seal.