






GROTH CORPORATION
Groth 5000 Series Free Vents are designed to be used on tanks containing non-volatile liquids and on vent pipe extremities. Groth Free Vents offer efficient flow capacity for the protection of the tank.
A wire mesh screen prevents foreign matter from entering the tank or pipe opening. Weather hoods are easily removable for inspection of vent and wire mesh screen.
• High flow capacity
• Built of corrosion resistant materials throughout
• Wire mesh screen prevents foreign matter from entering the tank or pipe opening
The Groth Model 6000 Gauge Hatch provides access for gauging or obtaining product samples from storage tanks. Model 6000 Series is designed with a foot lever surface to avoid foot slippage when opening. Gravity will close the cover upon removal of pressure on the foot treadle.
The Groth 6000 Series provides access for gauging or obtaining product samples from storage tanks. The Model 6100 incorporates a positive cover hold down which assures a premium tight seal on tanks with internal pressures up to 3 psig. Gasketed covers are recommended on tanks with high pressure settings.
The Groth Model 61T Gauge Hatch provides access for gauging or obtaining product samples from storage tanks. The gauge hatch has a gauge hook integrated to the base to facilitate sampling the tank. The Model 61T Gauge Hatch incorporates “cushioned-air” seating which assures a superior seal to ensure minimal fugitive emissions.
Blanket Gas Regulators from Groth Corporation ensure that a constant gas pressure is maintained in the vapor space of a storage tank. A blanket gas regulator supplies an inert gas to prevent a vacuum from developing when liquid is removed from a tank, to maintain the desired blanket pressure when the temperature drops, and to prevent outside air from contaminating the tank or creating a flammable or explosive environment. A blanket gas pressure as low as 0.5 InWC prevents outside air and moisture from entering the storage vessel and reduces evaporation of the stored product to a negligible amount. The end result: product conservation and significant reduction in tank emissions.
Groth blanket gas regulators provide a controlled gas environment in storage tanks for the following applications:
• Simple operation, spring-loaded “push-push” balanced piston design
• Bubble-tight shut-off
• Variable orifice, field-adjustable flow capacity
• Single stage regulator
• Setting ranges from 0.5 InWC to 15 psig
• Modulating opening
• Minimal lockup and droop
The Groth Model 2000A is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure relief valve on the tank. The valve protects the tank against rupture or explosion that could result from excessive internal pressures caused by fire. Removable stops can be provided which restrict the lift of the cover.
• Grounding Cable connects the head and flange
• Cushioned Air pallet
• Peripheral Guiding
The Groth Model 2100 is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure relief valve on the tank. The valve protects the tank against rupture or explosion that could result from excessive internal pressure. Model 2100 relieves, then reseats when the overpressure event has been dissipated.
• Sizes: 16” (DN 400) , 20” (DN 500) and 24” (DN 600)
• Pressure Settings: 1 to 15 psig (68.9 mbarg to 1.03 barg)
• Materials: Carbon Steel, Stainless Steel, special materials upon request
• ATEX Approved