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A. Yes, the majority of FlexEJ’s current range of Air and Dirt Separators are available from the FlexEJ shop on a same-day despatch basis although our largest Air and Dirt Separators (DN100 to DN150) need to be pallet-delivered and require an extra 2-3 days for delivery. We can also supply Air and Dirt Separators on an ongoing OEM basis and can cater for custom requirements. Please ask for details.

A. Our Flange Finder contains details for many common flanges. Typically, to be able to make the identification you need to know the bore size or outside diameter and number of bolts. For technical assistance contact us or use our Live Chat facility.

It is the consulting engineer or contractor’s responsibility to specify a particular brand they deem the best and compliant with ASSE-1072. This author feels it is best to specify a brand, since some manufacturers cannot meet ASSE-1072’s requirements to withstand the effects of dirt, debris, floor wax, and grease-laden waste. Typically, the higher-end, code-compliant models also have a built-in relief valve for eliminating potential air locks between the trap seal and the TSPD that can block floor water draining. There are also some new TSPD models with an added check-valve benefit to protect against property-damaging water backups ranging up to 5 ft of head pressure.

Maestrini DZR Brass Anti-Siphon Device Kit (32mm Hose / 10mm Vent) 410095 Maestrini DZR Brass Anti-Siphon Device Kit (32mm Hose / 10mm Vent) £150.43 Incl VAT

Rick Ensley is the SureSeal product manager at RectorSeal Corp. (Houston, Texas), a manufacturer of barrier-type floor-drain trap-seal protection devices. Ensley is a former plumbing installer who joined SureSeal six years ago. He can be contacted via e-mail at rensley@rectorseal.com.

Some waterless TSPDs are approved or accepted nationally for all retrofit uses. New construction specification depends on jurisdictions that have adopted ASSE-1072. The following list presents approval levels by state:

A water pressure reducing valve automatically reduces the pressure from the water supply main to a lower, more sensible pressure.

ZurntrapPrimer

Do try our air & dirt separator product finder (below) to check if we have a stock air & dirt separator size and specification that meets your needs. If not then do call us on the usual 01384 881188 or use LIVE CHAT or drop a note or specification to us via our Get A Quote page. We can also help with technicalities, drawings and whatever you need – including flange ends identification although do try our handy Flange Finder if you simply need to identify flange connections needed.

Ratings barg/°C Pressure & temperature What is the required pressure rating (in barg) compared to temperature rating for this bellow?

Ptrapprimer

FlexEJ’s manufactures Air, Dirt and combined Air & Dirt Separators in the UK. They can all be bought direct from our web shop on a 24hr dispatch basis (Monday to Thursday). FlexEJ can also manufacture to meet specific client requirements, please get in touch if you do need a custom-designed air & dirt separator built for a specific size or need.

New construction is a different story. TSPDs complying with American Society of Sanitary Engineering (ASSE) 1072, Performance Requirements for Barrier-type Floor-drain Trap-seal Protection Devices, and certified by a third-party test lab, may be substituted for trap primers in new construction and remodeling work, depending on the local jurisdiction and its inspectors. Plumbing consulting engineers that still want trap primers in their specifications might consider combining them with TSPDs. When the trap primer’s life cycle ends, the TSPDs can still offer the facility sewer gas protection.

Southern Water Technologies, Inc. has been helping customers with their water and wastewater treatment needs for over 20 years.

ElectronicTrapPriming device

Air & Dirt separation Air & Dirt SeparationIs this unit recommended for air and dirt removal in UK HVAC heating systems?

Aretrap primersrequired by code

FLEXEJ is a leading UK supplier of high-quality flanged rubber bellows, expansion joints and compensators as well as custom engineered rubber and metal bellows, industrial metal hose, pressure vessels, HVAC fabrication, pressure design and specialised pressure welding – from our manufacturing plant in Stourbridge, near Birmingham, in the heart of the West Midlands in the UK.

We can provide full technical details together with, pricing and shipping timescales. For more complex engineered quotes, preliminary sketches and calculations will be provided.

Waterless trap-seal protection devices (TSPDs) circumvent these disadvantages by being virtually maintenance-free barriers. For floor drains, most of these products are push-fit ethylene propylene diene monomer (EPDM) or silicone-based fittings with a one-way membrane that acts similar to a check valve. The membrane’s tight seal prevents sewer gas and insect ingress while also protecting against trap-water evaporation for months. Further, the membrane is sensitive enough to open from the weight of just 118 ml (4 oz) of water draining from a shower stall or floor wash-down.

Pressure/Vacuum relief valves are installed on storage tanks to control evaporation and emission losses resulting from hazardous vapor-producing products.

For instant advice. We can custom-design and engineer almost any expansion joint you need for delivery in the UK or worldwide. Call our expert team on +44 (0) 1384 881188 Or email us sales@flexej.co.uk

FlexEJ can design and build large, multi-circuit low loss headers to order. We can also offer low loss headers with air and dirt sections and all products in larger diameters for bigger systems. Please let us know what you need.

View our range of products in Poly Ball Valves. These include AMIAD MF BALL VALVE 20mm, HANSEN Poly Ball Valve 15mm, HANSEN Poly Ball ...

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Forrest Flanagan, CPD, a specifying design engineer at Denver-based engineering and construction management firm, McGrath Inc., specifies them well beyond use as backups to trap primers. Flanagan now specifies TSPDs conforming to ASSE 1072 as substitutes for trap-seal primers on every retrofit and new construction project, dependent on local jurisdictions. (The Colorado Department of Regulatory Agencies’ [DORA] Examining Board of Plumbers made allowances for the practice.)

A. Most of our air & dirt separators are available from stock on a 24hr delivery basis. Non-stock separators or custom-manufactured items typically take 7-14 working days, depending on options and quantities required.

For decades, the plumbing industry has depended on water-supplied trap primers for maintaining the trap-water levels in floor drains to prevent sewer gas infiltration into occupied spaces. The most common trap primers are connected to a water line and activated via pressure fluctuation from a nearby urinal or water-closet flush that maintains the water levels. Other types divert graywater to the floor-drain trap from nearby sink drains or electronic devices.

FlexEJ Air, Dirt and Air & Dirt Separators can be used in both heating and cooling systems. These robust and cost effective units are manufactured in our UK factory.

Building codes are gradually changing across North America to allow these TSPDs in lieu of trap primers. Depending on the jurisdiction, the products can be employed as substitutes in retrofit situations where trap primers have failed. Opening and closing floors or walls to replace trap primers can cost upward of $1000 each, so a product that installs in less than a minute after removing the floor drain grate represents significant maintenance labor savings.

Besides minimizing trap-water evaporation and maintenance, waterless TSPDs can also be considered ‘green’ because they do not require continual filling—this complements water conservation efforts.

Home depottrap primers for floor drains

Trap primers’ main disadvantage is maintenance. Like many plumbing fixtures, their supply orifices are easily blocked by scale or corrosion. Cleaning or replacing them is an expensive proposition, especially when they require floor and wall demolition/repair for access.

MAGtrapprimer

Backflow Parts USA is a master parts distributor and we carry backflow parts and backflow devices for Watts, Febco, Wilkins, Ames, and Conbraco.

Search for FlexEJ air & dirt separators by connection (pipe) size required, intended HVAC use and/or connection hardware (type):

GREEN DRAIN is the unique new standard for floor drain trap seals. Self ... Can I install a GREEN DRAINTM if I have P-trap in the ground? GREEN DRAIN ...

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24hr shipping 24hr shippingIs this range available with 24hr UK shipping from stock as standard (Monday to Thursday), mainland and main islands only?

Custom connections Custom fabrication/OEM optionsFlexEJ can supply custom units and is an original engineering manufacturer (OEM) supplier for air & dirt separators. Flange connections are available from DN40 to DN400 and to any current flange specification to match requirements?