Active envelope pressure gasket that expands around the base to increase seal
Higher flow capacity to protect from excessive pressure build up
Precision machining and manufacturing to accomplish high flow rates
Click here for Flow Rate curves
Direct replacement for any standard round API 12 thief hatch
Designed for easy maintenance, thus reducing downtime and lowering operational cost
Incorporates a mechanical lock system to be used with a pad lock or lock out bar
Industry Leading Flow Rates
Direct Replacement & Easy Maintenance
Ultra-tight sealing reduces product leakage and fugitive emissions
Precision machining and manufacturing to accomplish superior sealing
Want more information on the Groth 12-TH Thief Hatch:
Superior Sealing Performance
Minimizes evaporation emissions.
Avoid environmental standards fines.
Minimize loss of product.
Protects tank from overpressure/vacuum when sized properly.
Meet industry compliance
Protect your tanks
Why Thief Hatches are required?
Because we always make sure that:
13650 N Promenade Blvd, Stafford, TX 77477
SUPERIOR SEALING PERFORMANCE
The leakage is less than 1 SCFH of air @ 90% of the set pressure.
The GROTH Model 12-TH Thief Hatch was designed to out perform the competition, with industry leading high flow rates and precision tolerances to provide a superior sealing performance.
Casting: Aluminum (Non-Sparking)
Envelope Gasket: HNBR, FKM, or Fluorosilicone
Vacuum Diaphragm: HNBR, FKM, Fluorosilicone, or Fluoropolymer
Features & Benefits