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Non-Wetting Distance With a Insty-Pac Tube Assembly Having 3” Centers 

90% 

30” 15” 13” 11”  8”  7” 5.5” 2”  1” 

85% 

15” 11” 10”  9”  7”  5”  4”  1” 

 

80% 

10” 8” 7” 6” 5” 3” 2” 

 

 

70% 

8” 6” 5” 4” 3” 1" 

 

 

 

60% 

6” 4” 3.5” 

2.5” 

0.75 

 

 

 

 

50% 

4” 3” 2” 

0.75” 

 

 

 

 

 

40% 

2” 1.5” 0.5” 

 

 

 

 

 

 

30% 

1” 0.5” 

 

 

 

 

 

 

 

20% 

0.25” 

 

 

 

 

 

 

 

 

 

10% 

20% 

30% 

40% 

50% 

60% 

70% 

80% 

85% 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90% 

60” 30” 27” 24” 20” 16” 14” 13”  9” 

85% 

50” 24” 21” 17” 13” 12” 10”  8” 

 

80% 

40” 19” 15” 13”  9”  8”  7” 

 

 

70% 

30” 15” 11”  9”  6”  4” 

 

 

 

60% 

15” 11”  8”  5”  3” 

 

 

 

 

50% 

9” 8” 4” 2” 

 

 

 

 

 

40% 

5” 4” 1” 

 

 

 

 

 

 

30% 

2.5” 1” 

 

 

 

 

 

 

 

20% 

0.5” 

 

 

 

 

 

 

 

 

 

10% 

20% 

30% 

40% 

50% 

60% 

70% 

80% 

85% 

Relati

v

e

 Humi

dity 

Le

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ing 

Relati

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 Humi

dity 

Le

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ing 

Relative Humidity Entering 

Relative Humidity Entering 

Non-Wetting Distance With a Insty-Pac Tube Assembly Having 6” Centers 

The above is based on air conditions of 55°F duct temperature at a velocity of 500 feet per minute. 
Dissipation distance may vary depending on airflow and temperature characteristics.

 

Air Velocity 

3” 

Tube Spacing 

6” 

Tube Spacing 

500 fpm 

.025 

.015 

1000 fpm 

.085 

.030 

1500 fpm 

.180 

.055 

750 fpm 

.060 

.020 

1250 fpm 

.130 

.043 

Air Pressure Loss in Inches of Water Column 

 

 

 

 

 

 

 

 

 

 

Note: 

Tube spacing greater than 6” has no measureable air pressure loss. 

Содержание INSTY-PAC

Страница 1: ...gravity to an open drain condensate cannot be elevated 4 Each condensate connection must have it s own steam trap Condensate connections cannot be combined together to a common steam trap 5 A common...

Страница 2: ...cking CSCC and chloride pitting of stainless steel components is not covered by warranty Do not use hydrochloric acid descalers or bleach to clean the tank Consult the factory if you are unsure about...

Страница 3: ...70 80 85 Relative Humidity Leaving Relative Humidity Leaving Relative Humidity Entering Relative Humidity Entering Non Wetting Distance With a Insty Pac Tube Assembly Having 6 Centers The above is ba...

Страница 4: ...wall for the supply connection If the alternate horizontal condensate drain connection is supplied cut a 1 1 16 diameter hole through the AHU or duct wall for the drain connection see Fig 3 3 Install...

Страница 5: ...supply inlet 5 Duct plate condensate 1 6 Tube support bracket 1 per tube bank 7 Flexible connector 1 per tube 1 NPT valve connection 4 2 6 3 Fig 2 Tube drain connection 3 4 NPT Header drain connection...

Страница 6: ...g bracket welded to header Notes 1 Center the multiple injection tube assembly in the duct height 2 The injection tubes should be mounted level within the duct or AHU 3 Install injection tubes with th...

Страница 7: ...g VAV high limit humidistat is required A minimum velocity of 300 feet per minute is required to avoid saturation and excessive fog travel Controls Fan Interlock Switch PURE Humidifier Co recommends t...

Страница 8: ...ure 5 Undersized humidifier 6 Automatic control valve not opening fully A Pneumatic valve operator leaking air B Valve stem sticking Humidifier Discharges Water 1 Faulty drainage A Return line pressur...

Страница 9: ...is not leaking air b the valve closes off tightly c the stem packing is not leaking steam Valve Electric Should be inspected annually to confirm that the stem packing is not leaking and that the valv...

Страница 10: ...9...

Страница 11: ...10...

Страница 12: ...11 141 Jonathan Blvd North Chaska MN 55318 Tel 952 368 9335 Fax 952 368 9338 www purehumidifier com...

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