As a global manufacturer in the underground waterworks industry, specializing in treatment plant solutions, Trumbell has been committed to delivering innovative solutions and high-quality products since 1981. Their comprehensive approach includes full in-house engineering, manufacturing, and assembly operations based in Youngstown, Ohio.
With our solid infrastructure, state-of-the-art manufacturing facilities, and exception customer service, they continue to lead the way in the underground waterworks industry.
Their goal is to provide comprehensive solutions that meet the evolving needs of our customers while maintaining the highest standards of excellence and customer satisfaction.
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CAST IRON MUD VALVES
Certified to NSF-61 & NSF-372 in U.S.A. & Canada
Trumbull Mud Valves are designed primarily for use in settling tanks of water and wastewater treatment plants. They are for low pressure applications only; consult Trumbull for special requirements. Their intended use is to drain tanks for maintenance or cleaning.
Mud valves are furnished with a 2″ square operating nut; however, they can be supplied with optional extension stem or handwheel.
This valve series uses bronze seats in the body and gate (also available with resilient seat). The cast iron body assembly features manganese bronze stems and guides for use in submerged installations. The fasteners are furnished in stainless steel to prevent corrosion from years of submerged service.
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CAST STAINLESS STEEL MUD VALVES
Certified to NSF-61 & NSF-372 in U.S.A. & Canada
TRUMBULL MUD VALVES are designed primarily for use in settling tanks of water and wastewater treatment plants. They are for low pressure applications only; consult Trumbull for special requirements. Their intended use is to drain tanks for maintenance or cleaning.
Due to the corrosive applications in which Mud Valves are used, the yoke, flange, guides and gate are cast from Type 316 stainless steel. The one-piece, Type 316 stem has a permanently bonded coating to protect against galling for a lifetime of maintenance-free operation. Cast components eliminate corrosion problems frequently caused when stainless steel is welded. Castings are passivated after machining, per ASTM A-967. Heavy-duty design incorporates generous wall thicknesses and stem diameters for maximum strength and corrosion protection. Seat is SBR rubber for positive shutoff. Mechanically retained seat is field-replaceable. Fasteners are Type 316 stainless.
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FLOOR-TYPE HYDROSTATIC TANK PRESSURE RELIEF VALVES
Trumbull Floor-Type Pressure Relief Valves (PRV) are cast in the bottom of tanks of treatment plants to keep empty tanks from floating from an excess of groundwater beneath them. When this condition occurs, the hydrostatic pressure will open the cover of the valve allowing water to enter, thereby equalizing pressure inside and outside the tank and preventing it from floating. They will start to open at less than one foot of head. Lugs in the body prevent the cover and strainer from becoming separated from the body of the valve due to flow. Both can be removed when necessary, however, by turning to the right or left.
Our valves use two Neoprene seating surfaces so that if particles of grit lodge on them, the head of liquid in the tank will force the valve closed, preventing seepage of liquid into the ground. These valves are for low seating or unseating pressure applications only. Improved design uses C900 pipe gaskets in bell to securely retain PVC pipe to valve.
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WALL-TYPE HYDROSTATIC TANK PRESSURE RELIEF VALVES
Trumbull Wall-Type Pressure Relief Valves (PRV) are designed for installation in side walls of tanks of treatment plants. They are intended for low unseating pressure applications and will start to open at less than one foot of head to relieve groundwater pressure from the exterior of tank wall. For low seating applications, contact Trumbull.
Trumbull Relief Valves use two Neoprene seating surfaces so if particles of grit lodge on them, the head of liquid in the tank will force the valve closed.
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WALLPIPE
Trumbull Wallpipes are 18″ long (overall) with a collar 6″ from the face of the flange; they can be furnished cut-to-length to meet your requirements. The flange is tapped for studs to allow the flange on the Wallpipe to be set flush with the wall.
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TELESCOPING VALVES
Trumbull Telescoping Valves are designed to regulate the level of fluids in containment structures such as holding chambers, tanks, ponds & lagoons. An example of an application might be to regulate the effluent level in a settling basin. Also known as “Sludge Draw-off Valves” or “Decanting Valves”, the valve assembly consists of a lifting mechanism (operator), connecting stem and a slip (drain) tube which travels vertically inside a fixed vertical pipe. Utilizing the operator, the slip tube is raised or lowered to maintain the desired fluid level within the containment structure.
