The Rowland Company - Standard Vent Clutches

The Wichita Standard Vent Combination Clutch-Coupling is designed for reliable in-line power transmission. The simple air-tube design, with small air volume, speeds engagement and disengagement. It is unaffected by centrifugal force and has no self-energization like drum clutch designs. Ideally suited for large inertia loads where smooth controlled starts are needed.

Unit of Measure

Items	108 STVC Standard Vent Clutches	208 STVC Standard Vent Clutches	308 STVC Standard Vent Clutches	111 STVC Standard Vent Clutches	211 STVC Standard Vent Clutches
Slip Torque Capacity at 100 psi .3 CF	N/A 7000 lb·in	N/A 14000 lb·in	N/A 21000 lb·in	N/A 15900 lb·in	N/A 31800 lb·in
Maximum Horsepower per 100 RPM-Duty A	N/A 11.1 hp	N/A 22.2 hp	N/A 33.3 hp	N/A 25 hp	N/A 50 hp
Maximum Horsepower per 100 RPM-Duty B	N/A 8 hp	N/A 16 hp	N/A 24 hp	N/A 18 hp	N/A 37 hp
Maximum Horsepower per 100 RPM-Duty C	N/A 4 hp	N/A 8 hp	N/A 12 hp	N/A 9 hp	N/A 18 hp
Maximum Horsepower per 100 RPM-Duty D	N/A 2 hp	N/A 4 hp	N/A 6 hp	N/A 5 hp	N/A 10 hp
Recommended Clearance	N/A 1/16 to 1/8 in	N/A 3/32 to 5/32 in	N/A 3/32 to 5/32 in	N/A 1/16 to 1/8 in	N/A 3/32 to 5/32 in
Hi-Speed Airtube-Maximum Speed	N/A 3000 rpm	N/A 3000 rpm	N/A 3000 rpm	N/A 2800 rpm	N/A 2800 rpm
Total Weight	N/A 36 lb	N/A 58 lb	N/A 80 lb	N/A 65 lb	N/A 106 lb
Total WR²	N/A 3 lb/ft²	N/A 38 lb/ft²	N/A 5.1 lb/ft²	N/A 11 lb/ft²	N/A 18 lb/ft²
Driving Ring & Friction Disc-Weight	N/A 8	N/A 18	N/A 28	N/A 20	N/A 37
Driving Ring & Friction Disc-WR₂	N/A 1.2	N/A 1.8	N/A 2.4	N/A 5	N/A 10
Lining Area	N/A 56 in²	N/A 112 in²	N/A 168 in²	N/A 114 in²	N/A 228 in²
Note	N/A Maximum air pressure - 100 PSI
Manufacturer	N/A Wichita Clutch
Actuation	N/A Air Applied