Products SHEDs (Sealed Housing for Evaporative Determination)

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(Photo courtesy of Subaru)

Webber EMI manufactures a wide range of SHEDs in a variety of sizes, ranging from 10 cu-ft Micro SHEDs to full sized Vehicle SHEDs capable of testing HD construction vehicles. Starting with one of our standard configurations, a SHED can be custom-built to our customer specifications with specific regard to size, window placement, access door type, and other performance or testing needs.

All Webber EMI SHEDs incorporate a modular-systems design that allows the basic Fixed Volume / Fixed Temperature (FV/FT) enclosure to be upgraded to full Variable Volume / Variable Temperature (VV/VT) enclosure -- even years later -- on-site, and after installation.

FV/FT Vehicle SHED The Webber EMI Model 101 Vehicle SHED has been an industry standard for decades. It incorporates an entry-level Fixed-Volume / Fixed-Temperature (FV/FT) test system design that, even years later, can be upgraded into a full Variable-Volume / Variable-Temperature (VV/VT) SHED evaporative emissions testing system. It is available in several standard sizes suitable for testing complete vehicles, motorcycles, small tractors, off-road vehicles, lawn mowers, small machines and hand-held equipment.

(Photo courtesy of Harley Davidson)

VV/VT Vehicle SHED The Webber EMI Model 101 Vehicle SHED is also available as a Variable Volume / Variable Temperature (VV/VT) SHED. This SHED is designed to support a full range of test protocols and temperature profiles between 45 F and 120 F. Using the Webber EMI moveable roof system, absolute SHED volume is automatically controlled to maintain zero-differential pressure between the SHED interior and ambient laboratory conditions. It is designed for testing large equipment such as cars, trucks, tractors and other large machinery.

(Photo courtesy of Hyundai)

Mini SHED The Webber EMI Model 102 Mini- SHED is designed to facilitate testing applications which require a medium sized enclosure with the ability to resolve a very low emission concentration. This test system incorporates all of the features associated with our ‘full vehicle’ SHED systems but, the enclosure has been re-sized to a smaller foot print. This helps to improve emission detections and is suitable for testing small equipment such as ATV’s, lawn mowers, and other objects equivalent in size.

(Photo courtesy of the California Air Resources Board)

Micro SHED The Webber EMI Model 103 Micro SHED test system is designed specifically for Ultra-Low (ULEV) and Zero (ZEV) Emission level evaporative testing. While incorporating most of the features associated with our full vehicle SHED systems, the Micro-SHED test system has been re-sized to facilitate automated evaporative testing of smaller complete utility products, sub-systems and discrete components such as fuel tanks, valves, hoses, and canisters. With the ability to detect HC emission changes as low as 0.1 ppm/ mass emissions as low as 0.10mg.

(Photo courtesy of Yachiyo of America)

Running Loss SHED The Webber EMI Running Loss SHED is a modified version of our full-sized Vehicle SHED. This extra long SHED, equipped with special air handling equipment, a proportional speed fan, vehicle combustion makeup air, and an auxiliary personnel door, is combined with a centrally located dynamometer to accept both front- and rear-wheel drive vehicles. In addition to full exhaust emissions testing capability, this SHED supports all applicable diurnal evaporative emissions test protocols.

(Photo courtesy of the California Air Resources Board)

On-Board Refueling & Vapor Recovery Webber EMI can provide On-Board Refueling / Vapor Recovery (OR/VR) capability to any of our SHEDs either new or existing with on-site installation. Locations, height and amount of ports can be placed in a variety of places to best suite the end user. Using several different methods, vehicles or other fuel-dependent machines can be re-fueled while the SHED is sealed.

(Photo courtesy of Volkswagen)

All Webber EMI SHEDs are available as full VV/VT enclosures, or as FV/FT enclosures that can later be upgraded to VV/VT capability.

SHED Systems

	Micro SHED (10-100 cu ft)	Mini SHED (100-1000 cu ft)	Vehicle SHED (1000-2000 cu ft)
	Fixed Volume / Fixed Temperature (FV / FT)
Standard Volume	64 cu ft	324 cu ft	1680 cu ft
ID (W x H x L)	4'x4'x4'	6'x6'x9'	10'x8'x21'
Temperature	72° F	72° F	72° F
Vehicle Door	Side-hinge	Side-hinge	Top-hinge
Heat & Cool Unit	Self contained	Self contained	Self contained
Purge System	Single poppet valve	Single poppet valves	Single poppet valve
	Options (Available at time of manufacture only.)
Volume	Custom volume	Custom length	Custom length
Vehicle Door	Guillotine or Top/Bottom-hinge	Guillotine or Top/Bottom-hinge	Guillotine
Personnel Door	--	--	Side-hinge
Heating & Cooling Unit	Facility dependent	Facility dependent	Facility dependent
Purge System	--	--	Dual poppet valves
	Upgrades (Available both at manufacture and after installation.)
	Variable Volume / Variable Temperature (VV / VT)
Volume System	Moveable Roof, Mass-Flow Balance, or Bag system	Moveable Roof, Mass-Flow Balance, or Bag system	Moveable Roof, Mass-Flow Balance, or Bag system
Standard Temp Range	65° F - 105° F	65° F - 105° F	65° F - 105° F
Extended Temp Range	45° F - 145° F	45° F - 145° F	45° F - 145° F
	Fuel Tank Temperature Management System (FTTMS)
Heater Outlets	1	Up to 3	Up to 3
Heater Power	2kW / outlet	2kW / outlet	2kW / outlet
Auxiliary Outlets	1	Up to 2	Up to 2
Auxiliary Power	20A / outlet	20A / outlet	20A / outlet
	Onboard Re-fueling / Vapor-Recovery (OR / VR)
Nozzle Access	Quick Disconnects	Glove & Nozzle Boots or Quick Disconnects	Glove & Nozzle Boots or Quick Disconnects

If you need additional equipment not shown here, contact us with your requirements.

Why choose a Webber EMI SHED?

Download a brochure on SHEDs: (284k)  || Español(286k)