For Steam Service up to 600 psig (42 bar)...Capacities to 2,500 lb/hr (1,134 kg/hr)
The Armstrong CD-33 is a disc style trap designed to control the trap's cycle rate. By reducing the cycle rate, the Armstrong CD-33 will have a longer service life than typical disc traps. This enhanced performance will ensure that maintenance time is minimized and steam costs are greatly reduced.
The CD-33 is designed with three discharge ports, which offer stable disc operation to extend trap operating life. The capacities of the Armstrong CD-33 have been engineered specifically for the following applications: large steam main drips, process equipment, and HVAC heating equipment on constant pressure. The CD-33L (low capacity 1/2" and 3/4" only) trap is designed for the low capacity applications of steam main drips and steam tracing lines. By ensuring that the capacities are designed to suit the application, and are not oversized, the CD-33 Series will last longer than other disc traps with excessive capacity ratings.
Advantages
Steam trap shall be stainless steel thermodynamic type, integral seat design with hardened disc and seating surfaces, and electroless nickel plated finish. When required, trap shall be supplied with an integral Y strainer, integral blowdown valve or rain guard insulating cap. Maximum allowable pressure (vessel design) shall be 915 psig @ 752ºF (63 bar @ 400ºC). Maximum operating pressure shall be 600 psig @ 752ºF (41 bar @ 400ºC).
The Armstrong CD-33 is a disc style trap designed to control the trap's cycle rate. By reducing the cycle rate, the Armstrong CD-33 will have a longer service life than typical disc traps. This enhanced performance will ensure that maintenance time is minimized and steam costs are greatly reduced.
The CD-33 is designed with three discharge ports, which offer stable disc operation to extend trap operating life. The capacities of the Armstrong CD-33 have been engineered specifically for the following applications: large steam main drips, process equipment, and HVAC heating equipment on constant pressure. The CD-33L (low capacity 1/2" and 3/4" only) trap is designed for the low capacity applications of steam main drips and steam tracing lines. By ensuring that the capacities are designed to suit the application, and are not oversized, the CD-33 Series will last longer than other disc traps with excessive capacity ratings.
Advantages
- Three discharge port design
- Minimum wear with controlled cycling
- Freeze-resistant
- Hardened seat and disc
Steam trap shall be stainless steel thermodynamic type, integral seat design with hardened disc and seating surfaces, and electroless nickel plated finish. When required, trap shall be supplied with an integral Y strainer, integral blowdown valve or rain guard insulating cap. Maximum allowable pressure (vessel design) shall be 915 psig @ 752ºF (63 bar @ 400ºC). Maximum operating pressure shall be 600 psig @ 752ºF (41 bar @ 400ºC).
Unit of Measure
Specifications
Body |
N/A ASTM A743 Gr. CA40 |
Cap |
N/A ASTM A743 Gr. CA40 |
Disc Material |
N/A ASTM A276 Gr. 420 |
Strainer Screen |
N/A 30 x 30 Mesh T-304 Stainless Steel |
Screen Retainer |
N/A ASTM A743 Gr. CA40 |
Pipe Connections |
N/A 1 in1/2 in3/4 in15 mm20 mm25 mm |
Dimension - A |
N/A 1 7/16 in1 3/4 in37 mm44 mm |
Height - B |
N/A 2 1/2 in3 1/8 in63 mm79 mm |
Length - C |
N/A 3 5/16 in3 15/16 in84 mm100 mm |
Top of Cap - D |
N/A 1 3/4 in2 1/4 in44 mm57 mm |
Weight |
N/A 1.4 lb2.5 lb0.64 kg1.1 kg |
Maximum Allowable Pressure at 752ºF (Vessel Design) |
N/A 915 psig |
Maximum Allowable Pressure at 400ºC (Vessel Design) |
N/A 63 bar |
Minimum Operating Pressure |
N/A 3.5 psig0.24 bar |
Maximum Operating Pressure at 486ºF |
N/A 600 psig |
Maximum Operating Pressure at 252ºC |
N/A 41 bar |
Maximum Back Pressure of Inlet Pressure |
N/A 80 % |
Options |
N/A Blowdown Valve (Stainless Steel) Rain Guard Insulating Cap (1/2'', 3/4'' Sizes Only) (Stainless Steel) |
Note |
N/A Designs, materials, weights and performance ratings are approximate and subject to change without notice. |
