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The model RHV Double Deflection Diffuser offers a double deflection design in a round shape. Excellent for ceiling and wall mounting, it can provide wide dispersion or narrow air streams. The individually adjustable blades allow the user to condition four areas simultaneously. The body is one piece aluminum and mounts with the included hidden bracket. Finally a register good looking enough for those special projects!

Material
 Heavy-Gauge Aluminum
Finish
 Gloss White or Mill Finish (Custom Colors Available)
Sizes
 6" 8" 10" 12" 14" 16" 20" 24"

Features
 Contemporary Design
 Long Air Throws
 Wide Dispersion Patterns
 Double Deflection Design
 Concealed Mounting Mechanism
 Available for Standard Duct Sizes
 Heavy Gauge Aluminum Body
 Extruded Aluminum Airfoil Blades

Adjustable Blades
The RHV's front and rear blades are each individually adjustable to provide numerous dispersion patterns from wide dispersion patterns to long throw narrow air streams.


Related Product: BS Butterfly Damper >>
 RHV Download
 Catalog
 Submittal Sheet (Inch / Metric)
 Performance Data (Inch / Metric)
 Revit Files
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 Installation Instruction

Project Gallery
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Excelsior Caffe: Tokyo, Japan (RHV12)

Model RHV Dimensions (PDF Version)

MODEL DUCT
SIZE
A B C D E F G
RHV 6 6" 7 5/8 5 13/16 1 7/32 4 9/32 15/32 5 1/2 21/32
RHV 8 8" 10 7 25/32 1 13/32 4 9/32 15/32 5 1/2 23/32
RHV 10 10" 12 5/8 9 3/4 1 25/32 4 13/32 19/32 5 1/2 29/32
RHV 12 12" 14 19/32 11 23/32 1 25/32 4 13/32 19/32 5 1/2 15/16
RHV 14 14" 16 9/16 13 11/16 1 25/32 4 13/32 19/32 5 1/2 15/16
RHV 16 16" 18 17/32 15 21/32 1 25/32 4 13/32 19/32 5 1/2 31/32
RHV 20 20" 23 5/8 19 23/32 2 3/8 4 31/32 29/32 6 11/16 31/32
RHV 24 24" 27 9/16 23 11/16 2 3/8 4 31/32 29/32 6 11/16 31/32
Dimensions are in inches. Product information is Subject to Change Without Notice


Performance Data (PDF Version)

SIZE Neck Velocity
(fpm)
300 400 500 600 700 800 1000 1200 1400
Velocity
Pressure(in.,wg)
0.006 0.010 0.016 0.022 0.031 0.040 0.062 0.090 0.122
Deflection 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45 0 22.5 45
6 Neck Area
0.196
sq.ft.
CFM 60 80 100 120 140 160 200 240 280
SP(in.,wg) 0.014 0.033 0.040 0.025 0.056 0.070 0.040 0.090 0.110 0.060 0.110 0.170 0.110 0.150 0.240 0.135 0.180 0.300 0.180 0.270 0.440 0.280 0.430 0.690 0.400 0.610 0.720
NC - - - - - - - - 22 - 20 20 - 23 26 20 28 35 24 34 40 32 40 47 37 43
Throw(ft.) 13 13 10 20 16 13 25 20 15 32 26 20 40 35 25 43 37 28 55 45 35 60 55 45 80 70 55
8 Neck Area
0.349
sq.ft.
CFM 110 140 180 210 250 280 350 420 -
SP(in.,wg) 0.014 0.029 0.030 0.026 0.049 0.056 0.037 0.065 0.156 0.048 0.082 0.097 0.075 0.125 0.150 0.110 0.175 0.220 0.153 0.230 0.290 0.255 0.420 0.470
NC - - - - 18 19 - 18 25 15 18 20 20 21 25 22 26 30 25 32 33 33 40 42
Throw(ft.) 20 17 12 27 22 18 31 26 20 35 30 22 35 27 22 55 45 33 60 51 39 80 60 50
10 Neck Area
0.545
sq.ft.
CFM 170 220 280 330 390 440 550 660 -
SP(in.,wg) 0.011 0.024 0.026 0.016 0.035 0.043 0.022 0.045 0.059 0.036 0.068 0.088 0.062 0.105 0.142 0.048 0.130 0.230 0.150 0.155 0.255 0.185 0.285 0.420
NC - - - - 18 19 - 18 25 15 18 20 20 21 25 22 26 30 25 32 33 33 40 42
Throw(ft.) 20 17 12 27 22 18 31 26 20 35 30 22 35 27 22 55 45 33 60 51 39 80 60 50
12 Neck Area
0.785
sq.ft.
CFM 240 320 400 480 550 630 790 950 1100
SP(in.,wg) 0.010 0.019 0.017 0.015 0.031 0.037 0.012 0.025 0.032 0.075 0.090 0.140 0.085 0.102 0.120 0.010 0.195 0.320 0.098 0.167 0.210 0.152 0.210 0.380 0.165 0.280 0.460
NC - - - - - - - - 20 - - 24 - 20 27 18 22 30 22 32 41 31 38 46 35 48 50
Throw(ft.) 27 22 17 40 32 25 45 32 27 52 42 35 60 44 40 75 55 45 90 80 60 100 100 80 105 105 90
14 Neck Area
1.069
sq.ft.
CFM 330 430 540 650 750 860 1070 1290 1500
SP(in.,wg) 0.010 0.020 0.030 0.020 0.030 0.050 0.020 0.040 0.070 0.040 0.050 0.090 0.050 0.070 0.120 0.060 0.100 0.180 0.080 0.120 0.220 0.110 0.170 0.300 0.180 0.260 0.470
NC - - - - - 15 - - 21 - 15 23 15 21 21 16 29 34 24 30 41 29 34 33 37 45 48
Throw(ft.) 30 25 20 40 32 25 55 45 30 65 52 37 75 57 45 81 65 51 102 84 60 106 92 75 110 100 90
16 Neck Area
1.396
sq.ft.
CFM 420 560 700 840 980 1120 1400 1680 1960
SP(in.,wg) 0.010 0.030 0.050 0.020 0.040 0.070 0.040 0.070 0.120 0.050 0.060 0.130 0.060 0.080 0.140 0.050 0.080 0.160 0.080 0.130 0.170 0.110 0.210 0.350 0.170 0.270 0.400
NC - - - - - 21 - - 21 - 15 23 - 21 32 19 27 34 24 33 43 32 41 48 37 45 48
Throw(ft.) 25 25 20 41 32 26 60 46 34 73 55 41 80 65 50 90 82 65 105 100 80 120 110 100 100 82 60
20 Neck Area
2.182
sq.ft.
CFM 660 880 1100 1310 1530 1750 2190 2620 3060
SP(in.,wg) - 0.010 0.030 0.010 0.030 0.050 0.020 0.050 0.080 0.020 0.070 0.110 0.030 0.090 0.140 0.040 0.120 0.200 0.070 0.200 0.330 0.100 0.270 0.440 0.140 0.370 0.600
NC - 20 - - - - - - 22 - - 29 - 23 34 19 27 39 26 35 47 32 40 52 38 47 59
Throw(ft.) 37 32 22 50 40 30 67 56 39 80 66 46 94 77 54 109 88 61 139 110 76 172 131 89 201 153 102
24 Neck Area
3.142
sq.ft.
CFM 950 1260 1580 1890 2200 2520 3150 3780 4400
SP(in.,wg) - 0.020 0.040 - 0.040 0.060 0.010 0.050 0.090 0.020 0.080 0.130 0.030 0.100 0.170 0.030 0.130 0.220 0.060 0.200 0.340 0.090 0.290 0.500 0.110 0.380 0.640
NC - - - - - - - - 25 - - 31 - 21 32 20 26 41 23 34 49 29 41 50 34 46 60
Throw(ft.) 42 38 26 59 50 34 77 63 43 94 76 52 107 86 60 119 97 68 146 118 85 186 142 107 215 180 127
THE THROW VALUES ARE BASED ON A 50 FPM TERMINAL VELOCITY.
DASHED LINE IN SP BOX INDICATES STATIC PRESSURE IS LESS THAN 0.01 IN.W.G.
DASHED LINE IN NC BOX INDICATES NOISE LEVEL IS LESS THAN 20.
NC LEVEL IS BASED ON 10dB ROOM ATTENUATION(PWL RE:10-12 WATTS) WITH ONE DIFFUSER OPERATING.

*Seiho International reserves the right to make changes without prior notice.
*This performance data is proprietary to Seiho International, Inc., and shall not be used except as expressly authorized by the company.



Home > Products > BS
 BS Download
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Model BS damper with multiple blades is designed for air volume control for round ducts. Continuously adjustable from the face with a screwdriver for quick and easy volume control just by twisting until the desired setting is reached. The multiple blades provide more precise control. All-steel construction for durability.
Material
 Heavy-Gauge Steel
Finish
 Black
Sizes
 6" 8" 10" 12" 14" 16" 20" 24"
*Note: Not for use with flexible ducts.

Model BS Dimensions (PDF Version)

MODEL DUCT SIZE A B C
BS 6 6" 5 11/16 22/32 22/32
BS 8 8" 7 21/32 3/32 22/32
BS 10 10" 9 5/8 19/32 22/32
BS 12 12" 11 5/8 1 1/16 22/32
BS 14 14" 13 5/8 1 9/16 22/32
BS 16 16" 15 9/16 2 1/32 22/32
BS 20 20" 19 1/2 3 1/32 22/32
BS 24 24" 23 7/16 4 1/32 22/32
Dimensions are in inches. Product information is Subject to Change Without Notice

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