Groth Corporation introduces the Model 12-TH Thief Hatch for use on steel or fiberglass (FRP) low pressure oil tanks utilizing the eight inch round API 12 bolting pattern. The Model 12-TH Thief Hatch is designed to protect low pressure oil storage tanks, with high flow rates and precision tolerances for sealing performance. The leakage is reportedly less than 1 SCFH of air at 90% of the set pressure, keeping tanks in compliance with industry standards.
