Features

• Sensitive Response to Pressure Changes

• Seat Protection without Sacrifice in Shutoff Capability

• Tank Blanketing Capability

• Accuracy

• Application Flexibility

• Severe Service Capability

• Positive Guiding

• Sour Gas Service Capability

Body Sizes and End Connection Styles

Cast Iron2-inch (DN 50) standard cast iron body, NPT or 125 FFOptional steel body, NPT (all types), CL150RF (all types), CL150FF, CL300RF

3 or 4-inch (DN 80 or 100) standard cast iron body, CL 125FFOptional steel body, CL150RF, CL300RF

Maximum Inlet Pressures

Emergency Inlet Pressure: 25 psig (1,7 bar)Maximum Safe Inlet Pressure to Avoid Internal Parts Damage: 10 psig (0,69 bar) for Type 66, 5 psig (0,34 bar) for Type 66Z, and 2 psig (0,14 bar) for Type 66ZZEmergency Outlet: 8 psig (0,6 bar)Recommended for Good Performance: 5 psig (0,34 bar) for Types 66 and 66Z, and 2 psig (0,14 bar) for Type 66ZZ

Maximum Outlet (Casing) Pressure

8 psig (0,55 bar)

Outlet Pressure Ranges

4-inches w.c. to 5 psig (10 to 0,34 bar) in 11 ranges

Temperature Capabilities

-40º to 350°F (-40 to 177°C)

Pressure Registration

Cast Iron Body: Internal (standard) or ExternalSteel Body: External

Approximate Shipping Weights

2-inch (DN 50) NPT Ends: 50 lbs (23 kg)Flanged Ends: 55 lbs (25 kg)

3-inch (DN 80):  100 lbs (45 kg)

4-inch (DN 100): 155 lbs (70 kg)