Important things to know regarding FRP shelters

Before discussing about the topic, let’s know what are basically FRP shelters? FRP stands for Fibre-reinforced plastics. Literally speaking, these are composite materials made up of polymers reinforced with fibres. Fibres can be glass, basalt or even paper or wood. These are highly enduring substances and are resistant to extreme temperature, pressure and even toxic chemicals. These types of materials are used in ballistics, aerospace, marine, construction and sewage treatment plants. 

Coming to FRP shelters, these are corrosion resistant materials typically used for housing construction. These materials also have wide applicability in instrumentation sector, chemical feedings and other equipment purposes. 

These shelters have standard configuration and are custom built in order to meet every specific requirements. Apart from meeting specifications and requirements, these also save money. Some of the important miscellaneous features of FRP shelters are listed below:

●     Corrosion resistant

●     Temperature resistant

●     Storm resistant

●     Non conductive

●     One piece construction, hence there’s no problem of assembling it.

●     It is flat and smooth, which makes the mounting of any equipment easier

These are some of the important things to know regarding FRP shelters. In order to get the best benefits from it, you need to find the best supplier. Only the best supplier can assure you of all the benefits mentioned above.

TRAPEZOIDAL FLUME GENERAL COMMENTS

The Trapezoidal Flume was originally designed for use in irrigation and other agricultural applications. It is still frequently installed in open channels. However, it is also extremely well suited for in-line applications when proper adapters or transition pieces are used. Most of the flumes use a simple power equation, and most of the instrument manufacturers are now familiar with these flumes.

ADVANTAGES

1.     Trapezoidal flumes have a flat floor and relatively low sidewalls, and create less upstream head than most other flumes.

2.     The floor and wall design accelerates flow as it passes through the flume making it “self-cleaning”.

3.     The flumes are capable of passing solids without clogging.

4.     The 600 “V” shaped throat gives high performance at low flows, and is the best flume to measure flows from I - 10 GPM. The family of 60° V Trapezoidal flumes cover these flow ranges:

            Small               1 to 35 GPM

            Large               1 to 120 GPM

            Extra Large     1 to 600 GPM

            3.0’                  2 to 6,200 GPM

5.     The 60° V Trapezoidal flume can also be retrofit to manholes and can be easily installed in channels or piping systems.

6.     It is an economical flume to buy and to install.         

DISADVANTAGES

1.     Trapezoidal flumes give good low flow resolution when compared to other types of flumes, but are somewhat limited in their total flow range capability.

2.     Some people are still not familiar with this type of flume, and they don’t realize it can be used with sewage, installed in manholes and piping systems.

APPLICATION NOTES: Also see “General Flume Design Data”

1.     Each Trapezoidal flumes has two flow charts. One measures vertical head and the other one is sloped and corresponds to the Gage running up the angled wall.

2.     Because of the narrow floor, the 60° V Trapezoidal flumes normally work best in conjunction with bubble or pressure type probes. Some ultrasonic units seem to work well also. Consult the instrument manufacturer for recommendations.

3.     Any of the common instrument packages are compatible with the larger Trapezoidal flumes.

4.     If at all possible do not design or install a new flume system with the anticipation of it operating in a submerged state. For Trapezoidal flumes, submergence occurs around 70 - 80%.

Why should you use FRP manhole covers?

Had this title been devoid of FRP, it would have seemed that the writer is insane! Who doesn’t
know the importance of manhole covers? And why should anyone try to aware the civilized human society regarding the use of manhole covers?

But when it comes to FRP manhole covers, the discussion is a bit new and fresh. FRP stands for fibre reinforced plastics. These are made up of polymers reinforced with different fibres like asbestos, paper, wood, basalt and glass. These are very strong and highly enduring materials.They have wide applications in those places where highly resistant materials against extreme temperature, pressure and chemicals are sought. For example in ballistics, construction industries, automotive units, waste water treatment units, etc. these have profound applicability.

Coming to FRP manhole covers, these are much advantageous than the traditional cast iron pit and hole covers. Cast iron covers are susceptible to the harsh chemicals and moist of the manholes. They corrode easily and need regular maintenance. Sometimes it happens that people neglect the manhole covers and as a result of which, after continuous usage it degrades.Overflowing of filthy water and foul smell are some of the consequences. In this regard, FRP manhole covers are the best. They do not corrode and most importantly are not service demanding. Hence there’s no risk of filthy water overflowing or foul gutter smell in the near future.

ROTATING SCUM SKIMMERS

The FRP Rotating Scum Skimmer is designed for rectangular basins. Typical sizes range from 6 ft. to 20 ft. in length, and will be 6 inches to 18 inches in diameter. Most are manually operated with a lever.

FRP Rotating Scum Skimmers provide exceptional corrosion resistance under some of the worst operating conditions. Typically they are found in primary and industrial process clarifiers. Normal maintenance consists of routine plant washdown.

OPERATION

The scum skimmer is operated by rotating the slots below the surface of the water such that the top layer of water and debris flows into the scum skimmer. Rotation is most often done with a simple bar handle, but handwheel mechanisms, or electric operators are also available.

MATERIALS

The Plasti-Fab scum skimmer is fabricated of fiberglass reinforced plastic with stainless steel hardware.

LOCATIONS

Typical applications include: grease and scum in primary basins; surface oil in oil/water separators; foam and process debris in industrial basins; byproduct decant in certain industrial separation basins; and/or the removal of leaves and other floating organic debris in water plant sedimentation and chlorination basins.

WHY BUY PLASTI-FAB?

• Lightweight, easy to install or retrofit.

•  Can be custom designed and built for any installation or retrofit.

• Will not corrode. It is the material of choice when replacing corroded steel skimmers