Valves can be found everywhere in todays scenario at our houses, at the street, at various buildings and at power and water plants, other industrial and infrastructure facilities. The valves are basically broad-shouldered, with sections varying from water distribution to nuclear power to upstream & downstream – oil & gas. With each of these end-user industries using some basic types of valves.

The WATER WORKS

In the sphere of water distribution, pressures are always low and the temperatures are related to the surroundings. These two facts allow a number of valve design elements that is not usually seem on more complex equipment such as high- temperature steam valves.

The ambient temperature of water works ensures the use of rubber seals and elastomers since these materials allow water valves to be equipped to tightly seal off drips. One of the major factors here in water service valves is the choice in materials used for the valve construction. Waterworks valves have pressures that are usually well below 200 psi which means that the higher-pressure designs which are thick walled are not needed. Having said that, there are scenarios where the water valves are built to handle higher pressures around 300 psi.

The WASTEWATER treatment

The end side of fresh water going into a facility is ending up as wastewater in to the sewer output. These lines usually collect all the waste fluid & solids and finally direct them to a sewage or waste water treatment plants. These treatment plants contain a lot of low pressure piping and valves to perform their “dirty work.” The requirements for water treatment valves in most cases is lesser than the requirements for clean water service.

Being an essential component in the lifting stations for prevention of reverse flow when the pumps are not in operation the check valves affect performance in the wastewater ­service. The swing check valves are the general choice and these valves are made up of iron coupled with corrosion-resistant mechanisms.

CHECK VALVES & SHUT OFF VALVES

Every pumps and check valve should be fixed with a shutoff valve in order to allow the system isolation and for the maintenance of the lifting station components. Shutoff or Isolation valves for wastewater service come in many varieties but they are all basically designed to prevent the clogging and wear from the flow of grit-containing fluids.

TREATMENT FACILITIES

Domestic and industrial wastewaters that are collected from the lifting stations and the sewer systems flows to a centralized wastewater treatment facility. The waste water treatments include an inlet bar screen that exclude physical debris from the flow stream of wastewater. Since these pumps and associated waste water valves need to have all the characteristics that associated with the lifting stations. At this stage the wastewater still contains sediment and organic constituents that are diverted to a settling tank using chemically made coagulants.

Sludge is then pumped from the bottom of the tank at regular intervals to the de-watering sections. The valves used in this process must be specifically designed to handle slurry elements with over 90% suspended solids. The Aeration system usually uses a high-power centrifugal air blower and power-actuated control valves, typically the butterfly valves. The control valves this purpose are designed for high temperatures approaching 300°F (150°C) and dry fluid service. Adding to this, blowers should be fixed with the check valves that have low opening cracking pressure and are sized in such a way that they will not clutter during the low-flow operation.

What we do?

Even though there are many types of valves are used in wastewater treatment services, one thing they all have in general sync is that they must be suited for fluids containing suspended solids. Few of the basic valves such as knife gate valves should be used in the wastewater management and treatment service. Being a leading slurry knife gate valves manufacturers, we at Vtork Controls ensure that our valves meet the industry specific requirements.  Our team has specially know as knife gate valve manufacturers and for other eccentric valves that are the workhorses for wastewater applications. We provide the valve solutions that you look for.