aj manufacturing company custom and stainless air distribution products

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1 aj manufacturing company custom and curved blade single deflection supply grille SSCB (1, 2, 3 & 4-way deflection) stainless steel door grille SSDG stainless steel eggcrate SSec stainless steel hinged filter grille SSHFG (550, 150, SSG) stainless steel linear bar grille sslbg stainless steel removable filter grille SSFG (550, 150, SSG) stainless steel deep louver grille SSDL stainless steel double deflection long throw diffuser 250LT (H or V) stainless steel double deflection supply grille 250 HD (H or V) stainless steel (H or V) stainless steel drum louver SSdrl stainless steel extractor hepa/ulpa filters laminar flow hepa filter hinged filter grille sshfg (550, 150, ssg) stainless steel linear bar grille sslbg stainless steel maximum security grilles SE3 stainless steel SE6 stainless steel SE9 stainless steel modular ceiling diffuser SSmcd stainless steel INDEX modular louvered ceiling diffuser SSmlcd stainless steel removable filter grille SSFG (550, 150, Ssg) stainless steel return air grille 550 (H or V.500) stainless steel (H or V) stainless steel SSG stainless steel return air grille with auxiliary SSg with auxiliary stainless steel round damper SSRD stainless steel S-44 obd parallel blade remote cable security diffuser SD ceiling diffuser single deflection long throw diffuser 150LT (H or V) stainless steel single deflection supply grille 150 (H or V) stainless steel spiral duct spiral Duct mounted supply grilles stainless steel square panel diffuser SSPd stainless steel stainless round damper SSRd stainless steel stainless square panel diffuser SSPd stainless steel stamped face stainless diffuser Sfsd stainless steel technical data This section contains product and technical information only. For additional information and product pricing please contact your local ECCO Supply Sales Branch. ECCO is proud to be a member of: ASHRAE American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. HRAI Heating, Refrigeration and Air Conditioning Institute of Canada HARDI Heating, Airconditioning & Refrigeration Distributors International SMACNA Sheet Metal and Air Conditioning Contractors National Association SPIDA Spiral Duct Manufacturers Association ECCO Supply 9-1

2 return air grille 550 (H or V) stainless steel The series 550 return air grille is styled to match the 150 and 250 supply grilles. The face bars are non-adjustable and available in either a horizontal or vertical position, factory set at either 0 or 45, spaced on.750" centres. The same hollow air-foil bars used on the supply grilles are used on the return air grilles. Available with horizontal face bars, 550H, or vertical face bars, 550V. Constructed from type 304 Effective: July 2010 stainless, satin finish standard. Type 316 stainless steel is also available at an additional cost. specify series S-44 opposed blade damper attached to the 550 series to make return registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. 550 (H or V.500) stainless steel The series 550 bars are non-adjustable and available in either a horizontal or vertical position, factory set at either 0 or 45, spaced on.500" centres. The same hollow air-foil bars used on the supply grilles are used on the return air grilles. Available with horizontal face bars, 550H, or vertical face bars, 550V. Constructed from type 304 stainless, satin finish standard. Type SSG stainless steel The series SSG is a non-adjustable return grille made with louvered blades for limited vision or exterior applications. The blades are reinforced from the rear on approximate 12" centres. Constructed from type 304 stainless steel with satin finish standard. Type 316 stainless steel also available at an additional cost. deep louver grille SSDL stainless steel The series SSDL is a non-adjustable 1-1/2" deep return grille made with louvered blades for limited vision on exterior applications. The blades are reinforced from the rear on approximate 12" centres. 316 stainless steel is also available at an additional cost. specify series S-44 opposed blade damper series to make return registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. specify series S-44 opposed blade damper to make return registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. Constructed from type 304 stainless steel with satin finish standard. Type 316 stainless steel also available at an additional cost. return air grille with auxiliary SSg w/aux stainless steel The series SSG w/aux is a non-adjustable door Constructed from type 304 stainless steel with grille made with louvered blades for limited satin finish standard. Type 316 stainless steel vision in wood or hollow metal doors. Fits also available at an additional cost. 1-3/8" and 1-3/4" doors. Blades are reinforced from the rear on approximate 12" centres

3 removable filter grille SSFG (550, 150, SSG) stainless steel 550 Core Standard 150 Core Optional hinged filter grille SSHFG (550, 150, SSG) stainless steel 550 Core Standard 150 Core Optional Effective: July 2010 SSG Core Optional SQ to RD Transitions Optional single deflection supply grille 150 (H or V) stainless steel The series 150 single deflection supply grille Available with horizontal bars, 150H, or vertical provides effective directional control of the air bars, 150V. Constructed from type 304 stainless, stream in one or two directions. The bars are satin finish standard. Type 316 stainless steel is pivoted at the face, giving a uniform aligned also available at an additional cost. appearance regardless of blade angle setting. Specify Series S-44 opposed blade damper The hollow air-foil grille bars are spaced on.750" attached to 150 series to make supply registers. The centres. Each bar is adjusted for the desired air S-44 OBD assures even distribution of air across the deflection without affecting the setting of any grille face as well as positive volume control. other bar. SSG Core Optional SQ to RD Transitions Optional single deflection long throw diffuser 150LT (H or V) stainless steel The series 150LT long throw supply grille provides Available with horizontal face bars, 150LT or H, effective directional control of large volumes of air or vertical face bars, 150LT V. Constructed from flow. Each bar is pivoted, which allows for custom type 304 stainless, satin finish standard. Type 316 air flow. stainless steel is also available at an additional cost. The deflector bars are spaced on either 1.5" or Ideal for factories or plants where large volumes 3" centres, as specified. Each bar is adjusted for of air must be controlled. the desired air deflection without affecting the setting of any other bar

4 double deflection supply grille 250 (H or V) stainless steel The series 250 double deflection supply grille provides effective directional control of the air stream in one, two, three or four directions. Each bank of bars is pivoted at the front, which gives a uniform appearance regardless of blade angle setting. The hollow, air-foil grille bars are spaced on.750" centres. Each bar is adjusted for the desired air deflection without affecting the setting of any other bar. Effective: July 2010 Available with horizontal face bars, 250H, or vertical face bars, 250V. Constructed from type 304 stainless, satin finish standard. Type 316 stainless steel is also available at an additional cost. Specify Series S-44 opposed blade damper attached to 250 series to make supply registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. 250 HD (H or V) stainless steel The series 250 heavy duty double deflection supply grille provides effective directional control of the air stream. The front bars are set fixed at 0 or 45 on.500" centres. The rear blades are individually adjusted. The hollow, air-foil grille front bars are set at a fixed 0 or 45 and spaced on.500" centres. Back bars are spaced on.750" centres and each bar is adjusted for the desired air deflection without affecting the setting of any other bar. Available with horizontal face bars, 250H, or vertical face bars, 250V. Constructed from type 304 stainless, satin finish standard. Type 316 stainless steel is also available at an additional cost. Specify Series S-44 opposed blade damper attached to 250 series to make supply registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. double deflection long throw diffuser 250LT (H or V) stainless steel The series 250LT long throw supply grille provides Available with horizontal face bars, 250LT or H, effective directional control of large volumes of air or vertical face bars, 250LT V. Constructed from flow. Each bar is pivoted, which allows for custom type 304 stainless, satin finish standard. Type 316 air flow. stainless steel is also available at an additional The deflector bars are spaced on either 1.5" or cost. 3" centres. Each bar is adjusted for the desired air Ideal for factories or plants where large volumes deflection without affecting the setting of any of air must be controlled. other bar. spiral duct spiral Duct mounted supply grilles stainless steel Available with 150 H or V single deflection or 250 H or V double deflection stainless steel supply grilles. Add Model S-44 opposed blade damper to control air velocity. Type 316 stainless steel available at an additional cost

5 S-44 obd stainless steel The series S-44 OBD is constructed from type 304 stainless steel. Type 316 stainless steel also available at an additional cost. Face operating mechanism is screwdriver controlled. remote cable The Young Bowden cable control system enables accurate balancing dampers inaccessible above hard ceiling, through HEPA filters, behind grilles or in other difficult to reach locations. The 3-part parallel blade The series S-44 PBD is constructed from type 304 stainless steel. Type 316 stainless steel also available at an additional cost. Face operating mechanism is screwdriver controlled. The S-44 OBD assures even distribution of air as well as positive volume control. This damper can be attached to any of our grille products. system of damper, Bowden cable control kit and cable with wire are field attached and hand operated by a 12".030 wrench. The S-44 PBD allows gang operation of blades for even directional control of air flow, and it can be mounted to any of our grille and diffuser products. curved blade single deflection supply grille SSCB (1, 2, 3 & 4 way deflection) stainless steel The series SSCB curved blade single deflection supply grille provides effective directional control of the air stream in one or more directions. The bars are pivoted at the face, giving a uniform aligned appearance regardless of blade angle setting. The hollow, air-foil grille front bars are spaced on.750" centres. Each bar is adjusted for the desired air deflection without affecting the setting of any other bar. Available with 1-way, 2-way, 3-way or 4-way deflection. Constructed from type 304 stainless, satin finish standard. Type 316 stainless steel is also available at an additional cost. Specify Series S-44 opposed blade damper attached to SSCB series to make supply registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. door grille SSDG stainless steel The series SSDG is made for 1-3/4" doors or wall openings requiring a grille cover for both sides. The SSDG is constructed with louvererd stationary blades that are reinforced from the rear on approximate 12" centres which provides complete no-vision in 1-3/4" and wider doors and walls. Constructed from type 304 stainless, satin finish standard. Type 316 stainless steel also available at an additional cost

6 linear bar grille sslbg stainless steel The series SSLBG grilles are for supply or return air in sidewall or sill installations. Designed with fixed 0 air-foil blades parallel to the grilles long dimension, blades are reinforced on approximate 8" centres. Air-foil blades are set at 0 on 3/8" centres, allowing 1/4" spacing between blades. Constructed of type 304 stainless steel with satin eggcrate SSec stainless steel The Eggcrate Series provides 90% Free Area, bars are 24 ga. 304 SS in a 1/2" 1/2" 1/2" grid core. Type 316 SS available at additional cost. The eggcrate core offers a large opening area for return air flow. Other blade size and spacings are stamped face stainless diffuser Sfsd stainless steel 360 air pattern delivery maintains coanda effect even at low airflow rates and minimizes smudging. Surface mounted or suspended grid systems. Recommended for constant or variable air volume heating, cooling or ventilating. Die stamped cones no mitered corners. Uniform, 3 cone appearance regardless of neck size. Effective: July 2010 finish standard. Type 316 stainless steel is also available at an additional cost. Specify Series S-44 OBD attached to make supply or return registers. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control. Note: Not designed for return traffic. For Technical Data see end of section available; consult with your ECCO Supply sales representative for availability. Removable inner cone assembly without use of tools. Optional damper access through centre hole with plug button. Standard #3 satin finish. Optional white power coated finish. round damper SSRd stainless steel Our Model SSRD is manufactured entirely from standard type 304 stainless steel and is available in sizes 6", 8" 10", 12" and 14" with mill finish. Square panel diffuser SSpd stainless steel A-J's Stainless Square panel Diffuser adds a clean, unobtrusive air outlet for any designed ceiling system. Our new satin finish adds a soft, smooth appearance that blends into the ceiling. The face panel is formed from 24 gauge stainless steel. All edges are hemmed to stiffen and maintain a straight and level surface. The panel is easily removable from the frame for access to our optional S-44 OBD. modular louvered ceiling diffuser SSmlcd stainless steel The SSMLCD ceiling diffuser is offered for surface mount or lay-in T-bar panels. Available in 1, 2, 3 and 4-way fixed throw patterns, with optional stainless steel S-44 opposed blade damper and optional square to round transition Specify without screwholes for lay-in installation. Order Size: (22" 22" for 24" 24" layin) (46" 22" for 48" 24" layin) Note: Cores are factory set.

7 modular ceiling diffuser SSmcd stainless steel The SSMCD ceiling diffuser is offered for surface mount or lay-in T-bar panels. Available in 1, 2, 3 and 4-way fixed throw patterns, with optional stainless steel S-44 opposed blade damper and optional square to round transition. 150 cores feature fully adjustable blades while the 550 core is fixed at 0 and/or 45. drum louver SSdrl stainless steel Our model Series SSDL is ideal where long throws and the durability and resistance of stainless steel are required. The louvers are pivoted about extractor Our air extractor is constructed of curved stainless steel blades, gauged to operate in unison for fast and accurate adjustment, allows branch ducts to maximum security grilles SE3 stainless steel The SEC-3 is constructed with a 14 gauge steel frame and 1/8" x 1/2" blades on 1/2" centers supported by 14 gauge vertical bars on 6 centers. Blades can be fixed at 0,15, and 40 SE6 stainless steel The SEC-6 maximum security grille is offered constructed of materials ranging from 14 gauge up to 3/16" steel, aluminum and stainless steel. Security grilles have 2" x 2" holes with 1" fret bars in square and rectangular faces, and can be supplied as face only or with sleeves in SE9 stainless steel The SEC-9 maximum security grille is offered constructed of materials ranging from 14 gauge up to 3/16" steel, aluminum and stainless steel. Security grilles are perforated with staggered 5/16" diameter holes on 7/16"centers. Grilles can be furnished in round, square and rectangular faces, and can be supplied as face only or with Specify without screwholes for lay-in installation. Order Size: (22" 22" for 24" 24" layin) (46" 22" for 48" 24" layin) Note: Cores are factory set and not removable on the 550 series. Blades are individually adjustable on the 150 series. the rear of the blade and provide an additional directional control for the air stream. be fed from main lines, with uniform distribution over the entire area of the outlet. deflection. A 14 gauge sleeve, 1-1/2" long for floor grilles, is welded to face plate. Sleeves can be various depths to accommodate wall and ceiling constructions. Factory primed gray or white. various depths to accommodate wall and ceiling constructions. Security bars, woven wire mesh, deflection grilles, opposed blade dampers and back up angles can be added based on application specifications. Factory primed gray or white. sleeves in various depths to accommodate wall and ceiling constructions. Security bars, woven wire mesh, deflection grilles, opposed blade dampers and back up angles can be added based on application specifications. Factory primed gray or white

8 security diffuser SD ceiling diffuser hepa/ulpa filters laminar flow hepa filter A J Manufacturing provides HEPA and ULPA filters as options for our stainless steel laminar flow or any combination grille, plaster frame and plenum models in hinged or non-hinged models. HEPA filters have 99.99% minimum removal efficiency on 0.3 micrometer particle size. ULPA filers have % minimum removal efficiency on 0.12 micrometer particle size. Standard filters are made in an anodized aluminum Gel Seal frame that mates with a specially constructed knife-edge frame built into our diffusers that provides a leak-tight connection. Applications include hospitals, clean rooms, food processing, pharmaceutical and research facilities

9 technical data 550 (H or v) SSG 9-9

10 oversize details

11 mullion details MODEL 250 H Width < 24" 24" < Width < 48" FRONT BACK FRONT BACK Width < 24" 24" < Width < 48" 24" < Height < 48" 24" < Height < 48" Height < 24" Height < 24 FRONT BACK FRONT BACK MODEL 250 V Width < 24" 24" < Width < 48" FRONT BACK FRONT BACK Width < 24" 24" < Width < 48" 24" < Height < 48" 24" < Height < 48" Height < 24" Height < 24" FRONT BACK FRONT BACK

12 SSDL SSG w/auxiliary

13 SSFG / sshfg

14 150LT

15 250HD 250LT

16 spiral duct S-44 OBD Remote cable LIS T E D S IZE -1/4" (6.35 mm) LIS T E D S IZE - 1/4" (6.35 mm) 113/16" (46.04mm) Bowden Cable & Wire Control Kit Socket wrench to engage cable

17 S-44 OBD parallel blade SSCB

18 SSDG SSlbg

19 bar grilles

20 ssec Sfsd

21 sspd Ssrd

22 ssmlcd ssmcd

23 SSDRL extractor # OF BLADES ACTUAL WIDTH -W /8" H positioning strap Minimum W x H Maximum W x H 4" x 4" 18" x 36" U.S. Unit s to Metric Conversion INCHES x (25.4) = MILLIMETERS W duct size -1/8"

24 Sec-3 STANDARD STEEL CONSTRUCTION A. Standard face plate 14 ga. steel with continuously welded corners. Standard 1" face flange. Options: 1. Face plate of any desired gauge. 2. Other flange dimensions. B. C. 1/8" x 1/2" blades on 0.5" centers penetrating 14 ga. vertical support bars on 6" centers. Each blade welded to sleeve. Options: Blades at 0, 15, of 40 degree deflection. Sleeve 14 ga. steel of length required with welded seams and welded face plate. Options: Sleeve of any desired gauge. 1/2" O.C. 6" O.C. D. E. Standard screen behind face bars of 10 ga. x 3/8" clear opening (no. 2 mesh) woven steel wire. Option: 13 ga. x 1/2" clear opening expanded mesh. Standard rear angle 1" x 1" x 1/8" steel completely assembled for field welding or 11/4" x 11/4" x 1/8" steel completely assembled for bolting to sleeve. Options: All other angle sizes and gauges. 1" 0 Stitch Weld W W ga. sleeve continuously welded seams F. Standard prime coat. Options: 1. Finish coat of paint as specified. 2. Rust inhibiting paint for wet areas. H + 2" 15 Opt. O.B.D. H G. H. SEC-3A all aluminum construction for shower or other wet areas " thick face and 0.080" thick sleeve and supports standard. Rated for minimum security only. SEC-3SS all stainless steel construction of the same gauges as steel for shower or other wet areas. Sec ga. face plate L Optional 1" x 1" x 1/8" rear angle. Or optional 11/4" x 11/4" x 1/8" rear angle. STANDARD STEEL CONSTRUCTION A. Standard face plate 3/16" steel with 2" x 2" holes with 1" fret. Matching backer plate of 1/4" standard steel welded to sleeve. Standard 1" face flange. Options: 1. All other hole sizes and fret spacings. 2. Other flange dimensions. 2" B. Standard screen 10 ga. x 3/8" clear opening (no. 2 mesh) woven steel between plates and welded to sleeve. Option: All other gauges and spacings. 1" or 3/4" C. Standard sleeve of 3/16" steel with continuously welded seams and welded to face plate. Length as required. Options: Sleeve of any desired gauge. W W + 2" D. E. F. Standard rear angle 1" x 1" x 3/16" steel completely assembled for field welding or 11/4" x 11/4" x 3/16" steel completely assembled for bolting to sleeve. Options: All other angle sizes and gauges. Standard prime coat. Options: 1. Finish coat of paint as specified. 2. Rust inhibiting paint for wet areas. SEC-6A all aluminum construction of same gauges as steel for shower or other wet areas. Rated for minimum security only. 10 ga. 3/8" clear opening (no.2 mesh) H + 2" 1" Stitch Weld Matching 1/4" Backer Plate Opt. O.B.D. H 3/16" sleeve continuously welded seams G. SEC-6SS all stainless steel construction, 10 ga. for shower or other wet areas /16" face plate L Optional 1" x 1" x 3/16" rear angle. Or optional 11/4" x 11/4" x 3/16" rear angle.

25 Sec-9 STANDARD STEEL CONSTRUCTION A. Standard face plate 3/16" steel perforated with staggered 5/16" diameter holes on 7/16" centers. Construction per ASTM and ANSI standards. Standard 1" face flange. Options: Other flange dimensions. 1" Stitch Weld 3/16" sleeve continuously welded seams B. C. Standard sleeve of 3/16" steel with continuously welded seams and welded to face plate. Length as required. Options: 1. 21/2" x 3/8" flat bars welded on 4" centers to sleeve. 2. 1" dia. bars welded to sleeve on 6" centers each way and welded at all crossings. 3. Face plate and sleeve 14 ga., 12 ga., 10 ga. steel. Standard rear angle 1" x 1" x 3/16" steel completely assembled for field welding or 11/4" x 11/4" x 3/16" steel completely assembled for bolting to sleeve Options: All other angle sizes and gauges. 5/16" dia. holes on 7/16" centers H + 2" Opt. O.B.D. H D. E. Standard prime coat. Options: 1. Finish coat of paint as specified. 2. Rust inhibiting paint for wet areas. SEC-9A all aluminum construction of same gauges as steel for shower or other wet areas. Rated for minimum security only. W W +2" 3/16" face plate Opt.21/2" x 3/8" Flat Bars L Optional 1" x 1" x 3/16" rear angle. Or optional 11/4" x 11/4" x 3/16" rear angle. F. SEC-9SS all stainless steel construction, 10 ga. for shower or other wet areas. SD ceiling diffuser STANDARD CONSTRUCTION A. 1,2,3 or 4 way fixed or adjustable ceiling diffusers having square, rectangular or round neck. Available from 6 x 6 thru 24 x 24 rectangular neck sizes. Offwhite finish standard. Options: 1. Face operated opposed blade damper. 2. Scoop or straightening vanes. 3. Square to round neck adapters. 4. Modular core diffusers. 13/16" B. Standard 12 ga. steel face plate having 13/16" x 13/16" sq. holes and 3/16" fret. Countersunk screw holes in face and provided with tamperproof screws. Options: 1. Countersunk bolt holes with above ceiling matching ring having nutserts and provided with tamperproof bolts. 2. Other hole patterns. 13/16" 3/16" H ADDITIONAL OPTIONS C. D. E. F. G. H. Fastening Methods: Bars: (requires sleeve). All aluminum construction for shower or other wet areas. Rated for minimum security only. All stainless steel construction for shower or other wet areas. 10 ga. x 3/8" clear opening (No. 2 mesh) woven wire between face plate and diffuser. Sleeves. SUGGESTED SPECIFICATION SD: Provide AJ SD ceiling diffuser with a square face and square neck (round neck) and having 4 way deflection (3 way, 2 way, opposite, 1 way). Provide face plate of 12 ga. steel (14 ga., 10 ga.) having 13/16" x 13/16" punched square holes with 3/16" margins. Provide opposed blade balancing damper (scoop) (straightening grid) where indicated. Diffuser to be furnished with: Countersunk screw holes OR Countersunk bolt holes with above ceiling matching rings having nutserts. Sleeve shall be of length required. 1. To extend 2" beyond rear of wall and be provided with a 1" x 1" x 3/16" angle for field welding to the sleeve (or for bolting to the sleeve with holes in sleeve and angles factory punched). OR 2. Bent out at rear 11/2" all around for insertion of block or pouring of concrete and provided with masonry tabs. 11/4" x 11/4" x 1/8" Optional Seperate Above- Ceiling Angle with Nutserts Advise Thickness W Ceiling Opening Neck Size O.B.D (Optional) 1/2" 1/2" Optional Tamper Proof Screws Finished to be off-white

26 security grates common frame and bar types Effective: July 2010 SECURITY GRATES - COMMON FRAME AND BAR TYPES FRAME STYLE A FRAME DESIGN SIDE FRONT Continuous Welds H CONSTRUCTION TYPICAL APPLICATION 21/2" X 21/2" X 1/4" angle iron frame. Welded continuously at corners. OPTIONS: Other sizes of angle iron, corners filled in, bolt holes. TYPICAL APPLICATION: Mounting in metal deck or roof framing (bolted or welded) or bolted to wall with masonry anchors. W B 2" H W 2" x 1/4" flat steel frame. Welded continuously at corners. OPTIONS: Other flat sizes. TYPICAL APPLICATION: Mounting in ductwork or other framing. Can be used to add security bars to existing sleeves or grilles. C Stitch Welded T L W W+3 3/16" steel sleeve continuously welded with 1" x 1" x 3/16" angle frame factory welded to one end. Furnished loose on other end for field welding. OPTIONS: Sleeve gauges, angle frame size, loose angle frame for field bolting, collar length, both angles welded. TYPICAL APPLICATION: Mounted in existing opening, one angle frame loose for field mounting (weld or bolt). Allows for duct connections on both sides. Can also be poured in place or set with block if both angles factory welded. T Continuous Welds D 1-1/2" H 3/16" steel sleeve with bent flanges. Sleeve continuously welded. OPTIONS: Sleeve gauges, flange height, corners filled in, masonry anchor rods. TYPICAL APPLICATION: Poured in place or set with concrete block new construction only. W G Stitch Welded H 3" 3/16" steel sleeve with 3" x 1/4" flat bar welded 1" from one end. OPTIONS: Sleeve gauge, flat bar gauge and location, bolt holes. TYPICAL APPLICATION: For welding or bolting to wall one side only allows for duct connections on both sides of wall. 1" W BAR STYLE BAR DESIGN CONSTRUCTION 1 1/2" diameter H.R.S. bars. 6" O.C. both ways. Welded to frame and at cross points. OPTIONS: Other bar sizes and spacing. 2 3/4" diameter H.R.S. vertical bars 6" O.C. 2" x 1/4" flat steel horizontal bars 8" O.C. All bars welded to frame and at cross points. OPTIONS: Other bar sizes and spacing. 3 1/2" diameter heat treated hardened steel. Rockwell C61 6" O.C. both ways. Bars set into 2" x 1/2" sockets welded to sleeve. Bars retained at cross points with "Permalock" clamps. OPTIONS: Other bar sizes and spacing

27 type 304 vs type 316 stainless steel TYPE 304 Type 304, with its chromium-nickel content and low carbon, is the most versatile and widely used of the austenitic stainless steels. Type 304 alloys are all modifications of the 18 percent chromium, 8 percent nickel austenitic alloy. Applications for this group of alloys are varied and all possess somewhat similar characteristics in resistance to oxidation, corrosion, and durability. All provide ease of fabrication and cleaning, prevention of product contamination and offer a variety of finishes and appearances. GENERAL PROPERTIES TYPE 304 Type 304 stainless steels can meet a wide variety of physical requirements, making them excellent materials for applications including auto molding and trim, wheel covers, kitchen equipment, hose clamps, springs, truck bodies, exhaust manifolds, stainless flatware, storage tanks, pressure vessels and piping. TYPICAL ANALYSIS TYPE 304 Represented by ASTM-A240 and ASME SA240. Elements by Percentage by Weight Maximum Unless Range is Specified. C=.08 / Mn=2.00 / P=.045 / S=.030 / Si=1.00 / Cr= / Ni= / N=.10 TYPE 304 RESISTANCE TO CORROSION The 18 percent chromium, 8 percent nickel, provides good resistance to moderately acidic or caustic solutions. Type 304 may be considered to perform similarly in most non-severe applications. A notable exception is in the case of welding. Low carbon (304L) is the recommended alloy and provides increased resistance to intergranular corrosion. MECHANICAL PROPERTIES OF TYPE 304 AT ROOM TEMPERATURE Typical Mechanical Properties required for annealed material covered by ASTM A240. Yield Strength.2% offset=30,000 / Ultimate Tensile Strength=80,000 / Elongation=50% Hardness R B =90 max. TYPE 316 Type 316 is an austenitic chromium-nickel stainless and heat-resisting steel with superior corrosion resistance as compared to other chromium-nickel steels when exposed to many types of chemical corrodents such as sea water, brine solutions, and the like. GENERAL PROPERTIES TYPE 316 Type 316 alloy is a molybdenum bearing stainless steel. It has a greater resistance to chemical attack than the 304 family. Similarly, Type 316 is durable, easy to fabricate, clean, weld and finish. TYPICAL ANALYSIS TYPE 316 Represented by ASTM-A240 and ASME SA240 C=.08 / Mn=2.00 / P=.04 / S=.03 / Si=1.00 / Cr= / Ni= / Mo= RESISTANCE TO CORROSION TYPE 316 The addition of 2% molybdenum makes 316 considerably more resistant to corrosion and oxidation than the 304 family of alloys. MECHANICAL PROPERTIES OF TYPE 316 AT ROOM TEMPERATURE Typical Mechanical Properties required for annealed material covered by ASTM A240. Yield Strength.2% offset=30,000 / Ultimate Tensile Strength=80,000 / Elongation=50% Hardness R B =90 max. Type 316 is considerably more resistant to solutions of sulfuric acid, chlorides, bromides, iodides and fatty acids at high temperature. In the manufacture of certain pharmaceuticals, stainless steels containing molybdenum are required in order to avoid excessive metallic contamination