Armstrong CD-60 Series controlled disc steam traps contain a replaceable capsule, making it possible to renew a worn trap by simply replacing the capsule. A heating chamber in the shell ensures consistent operation. This steam jacket provides a relatively constant temperature in the control chamber regardless of ambient conditions. Cycling rate is controlled and does not increase when the trap is exposed to cold winds, rain or snow. CD-60 Series traps contain integral strainers with ratios of open area to inside area of pipe that equal or exceed those of most separate “Y” type strainers.

Maximum Operating Conditions

• Maximum allowable pressure (vessel design): 600 psig @ 750°F (41 barg @ 399°C)
• Maximum operating pressure: 600 psig (41 barg) at saturated steam temperature
• Minimum operating pressure: 10 psig (0.7 barg)
• Maximum back pressure: 50% of inlet pressure (recommended)

Connections and Materials

Connections:

• Screwed NPT and BSPT
• Socketweld
• Flanged EN 1092-1 or ASME B16.5 (welded)

Materials:

• Body: ASTM A216 WCB or ASTM A105
• Cap: ASTM A216 WCB
• Control chamber: Hardened stainless steel
• Disc: Hardened stainless steel
• Capsule body: Hardened stainless steel
• Strainer screen: 20 x 20 mesh stainless steel

Capacity

Capacities given are continuous discharge capacities in pounds and kilograms of hot condensate per hour at pressure differential indicated with condensate temperatures approximately 25°F (14°C) below steam temperatures.

Operating Recommendations

CD traps can operate with a minimum of 2 psig (0.15 barg) inlet pressure and a maximum of 80% back pressure. However, for best results, inlet pressure should not drop below 10 psig (0.70 barg) and back pressure should not exceed 50% of inlet pressure.

Dimensions and Weights

Model No.	CD-61	CD-61	CD-62	CD-63
Pipe Connections (in)	3/8	1/2	3/4	1
Pipe Connections (mm)	10	15	20	25
“B” Height (mm)	66.7	66.7	87.3	108.0
“B” Face-to-Face (screwed & SW) (mm)	88.9	88.9	117.0	122.0
“C” Face-to-Face (flanged PN40) (mm)	—	150	170	180
Weight (screwed & SW) (kg)	1.2	1.1	2.2	3.1
Weight (flanged PN40) (kg)	—	2.6	4.3	5.7

Note: All models comply with Article 4.3 of the PED (2014/68/UE). May be derated depending on flange rating and type.

Installation

Possible connections: screwed, socketweld or flanged.

Maintenance

Equipment Under Pressure

Operating temperature > 100°C (212°F) Make sure the trap is cold and depressurized before handling!

Capsule and screen replacement:

1. Remove the complete trap from the steam line.
2. Unscrew the 4 bolts (5) and lift the cap (1).
3. Unscrew and replace the capsule (3) containing the disc and the seat.
4. Clean or replace the screen (4).
5. Replace gasket (6).
6. Put the cap (1) back on the body (2) and screw the 4 bolts (6).