The Heavy-Duty (HD) Airlock features a round inlet to square outlet (or reverse). The HD is ideally suited for low and medium differential pressure systems, gravity or volu-metric feeder discharge devices.

Heavy Duty (HD) Airlocks

Dimensions are for an HD without drive package, please consult your Mac Process Sales Representative for dimensions for HD airlocks with right angle or paral-lel shaft drives

AA BB CC DD EE FF GG HH JJ KK LL MM NN PP WEIGHT CAPACITY

55/8

7121/8

N/A

N/A

21/2

21/2

25/8

N/A

N/A

1/2 x 1/41/2 x 1/45/8 x 5/16

3/4 x 3/87/8 x 7/16

291/4

323/8

52601/4

70

127/8

143/8

203/8

241/4

283/8

650900125019602581

1.102.304.009.4016.60

1.9371.937 2.4372.9373.437

33/4

37/8

111/2

1213/16

137/8

31/4

31/4

111213

1215203/4

2630

1215173/4

2630

125/8

141/8

201/8

233/16

273/4

203/4

25313844

111/8

131/4

16N/A

N/A

91/2

115/8

14175/8

201/2

MODELDimensions (IN.)

HD16x12 and larger feature square to square flanges

shown with finger guard

Finger Guard

page 1-29

www.macprocessinc.comAirlocks1-8

Heavy Duty (HD) Airlocks

HD 16x12

HD 20x15

HD 24x24

HD 30x30

HD 36x36

Standard Specifications

� Cast gray iron housing and end plates� Double lip seal assembly� Outboard sealed bearings� Carbon steel rotor construction� 8 vane, open end rotor with: � Fixed relieved 1/8� land rotor tips � Clockwise rotation from the drive end � Gasket material on flanges to be silicone caulk� Maximum temperature rating: -45! F to 200! F� Rated up to 15 PSI pressure differential� Mac Process white paint

Options:

� Stainless steel rotor � Adjustable tips (HD12x10 and larger)� High temperature service to 45o! F � Variable speed drives� TS4 seals (up through HD24x24 size)� Hard chrome coating on bore and endplates� Packing gland seals (HD12x10 and smaller available with air purge)

HD 8x6

HD 10x8

HD 12x10

A B C D E F G H J K L M N P Q R S T U V WEIGHT CAPACITY

6810

81/4

91/2

113/4

97/8

11123/4

197/16

217/16

271/2

337/8

45/8

105145400

0.170.340.60

23/8

23/8

33/8

3/83/81/2

111

2221/2

6810

93/4

1113

41/8

43/4

6

3/43/41/2

51/8

691/8

51/8

513/16

71/2

3/83/81/2

665

101/4

1113/16

165/8

11127/8

163/8

103/4

113/4

133/4

MODELDimensions (IN.)

HD8x6 through 12x10 feature round inlet flanges and square discharge flanges

call toll free 888.821.2476 Airlocks 1-9