Plasti-Fab, Inc. products

Plasti-Fab offers standard sizes of corrosion resistant, fully-insulated shelters for instrumentation, controls, chlorination, sampling and communications. Also referred to as walk-in enclosures, Plasti-Fab offers standard sizes of corrosion resistant, fully-insulated shelters for instrumentation, controls, chlorination, sampling and communications. Having the same general benefits of our larger shelters, they feature low maintenance, electrical non-conductivity, and are not susceptible to rust or decay.

Flexible neoprene flap gate is the answer for applications requiring corrosion resistant equipment suitable for sea water and most low pH water. Simple construction and light weight make installation and maintenance easy. The flap gate’s molded body of reinforced copolymer has a 125 lb. pattern flange and a molded neoprene flap which also acts as a hinge. The flexible flap with molded-in weight reduces the possibility of pounding which is often a problem on valves having metal to metal seats. Body flanges can be drilled to accept standard bolt sizes when connecting to pipe flanges or can be drilled for smaller bolts when they are to be fastened directly to wall surfaces. We have three different kinds of flap gates. Our Rigid Round Flap Gates run in sizes from 4″ to 96″, rectangular flap gates range from 12″ to 96″ and our flexible rectangular flap gates range from 36″ to 96″.

Composite FRP is extremely resistant to chemicals, saltwater, corrosive soils, ground water and electrolysis. Weighs only a fraction of concrete and steel structures. Strong – FRP is pound-for-pound much stronger than steel. Flumes with precise throat dimensions for accurate flow measurement. Premium grade Isophthalic white gel coat interior to resist bacteria and maximize.  illumination for safety, and gray exterior Minimum 1/2” wall thickness 48”, 60” and 72” diameter barrels standard – custom sizes available. Ladder, SS US brackets, and bubble tubes all designed/manufactured in house.

Reduces velocity in flow to increase accuracy of flow measurement.. Drop in place installation is fast and efficient.. Self Cleaning Design.. Integral Manhole and Energy baffle system. Manhole barrel has white gel coated interior to maximize available light and sanitation.. Design Features and Accessories. Manholes available with: Full Hinged Lid. H-20 Rated Cone Top. Aluminum Gas Tight Lid. Grated Top. Aluminum Hatch. Manholes pipe stubs built to match existing pipe ID and OD for easy installation. Reinforced Energy Baffle. Sidewalls custom built to efficiently funnel water back into pipe. Manhole bottom is sandwich construction to prevent oil-canning.

Divert flow as needed to separate downstream locations. Drop in place installation is fast and efficient. Manual or remote gate operation. Complete packaged integral manhole and diversion gate system. Manhole barrel has white gel coated interior for luminesce and sanitation. Composite FRP is extremely resistant to chemicals, saltwater, corrosive soils, ground water and electrolysis. Strong – FRP is pound-for-pound much stronger than steel.

The H flume and related HS & HL flumes are gaining in popularity due to their ability to handle wide ranging flows that can vary by as much 100:1 or more from low to peak. Because of the unique throat, which resembles a weir in some respects, the H flumes provide excellent resolution at low flows and still have capacity to capture peak flow readings on many 15 to 25 year storm events. H flumes have a flat floor that must be installed level with the approach section or entrance channel. Flow must be able to free fall or spill from the end of the flume in an unimpeded manner. H Flumes are more tolerant of slope and velocity than any other style of flume. Complete flow charts for each size h flume exist, but simplified flow equations are not readily available.

The Palmer-Bowlus flume is well know in the sanitary field, and has been used in the Los Angeles area for over 60 years. It’s primary application is in pipelines, in round bottom channels or in manholes where it is often preferred because of cost and ease of installation that can minimize construction expense.

Trapezoidal flumes fall into two principal groups, 60º V-notch flumes and larger trapezoidal flumes. The 60º V flumes have a sharp V-throat section similar to a V-notch weir and produce superior resolution for accurate flow measurement down to 1 gpm. The larger trapezoidal flumes, up to the 2 foot SRCRC flume, have flat floors and sloping sidewalls and can handle flows up to 32 MGD.

Industrial Slide gates are commonly used in open channel and moderate head applications to isolate equipment, divert flow, close off a wall opening, or cover a pipe that is flush with the wall. Plasti-Fab slide gates are manufactured of gray fiberglass reinforced plastic containing ultraviolet inhibitors. Plasti-Fab penstock is reinforced to withstand the specified maximum operating head. Where required neoprene j-seals can be included to meet low leakage rates. The frames are constructed from Plasti-Fab designed FRP pultrusions with polymeric fiber surfacing material and UV inhibitors for high corrosion resistance.