| Model | Maximum Capacity | Maximum Allowable Pressure | Maximum Allowable Temperature | Maximum Operating Pressure (Saturated Steam) |
Connection Size |
| 15-JD | 33,000 lb/hr (14,969 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
15 psig (1 bar) |
2″ (50 mm) |
| 20-JD | 27,000 lb/hr (12,247 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
20 psig (1.4 bar) |
2″ (50 mm) |
| 30-JD | 24,000 lb/hr (10,886 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
30 psig (2 bar) |
2″ (50 mm) |
| 75-JD | 21,000 lb/hr (9,525 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
75 psig (5 bar) |
2″ (50 mm) |
| 125-JD | 21,000 lb/hr (9,525 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
125 psig (8.5 bar) |
2″ (50 mm) |
| 175-JD | 20,000 lb/hr (9,072 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
175 psig (12 bar) |
2″ (50 mm) |
| 250-JD | 17,500 lb/hr (7,938 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
250 psig (17 bar) |
2″ (50 mm) |
| 300-JD | 13,300 lb/hr (6,033 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
300 psig (21 bar) |
2″ (50 mm) |
| 30-KD | 47,000 lb/hr (21,319 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
30 psig (2 bar) |
2-1/2″ (65 mm) |
| 50-KD | 103,000 lb/hr (46,720 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
50 psig (3.5 bar) |
2-1/2″ (65 mm) |
| 300-KD | 154,320 lb/hr (70,000 kg/hr) |
300 psig (21 bar) |
650°F (343°C) |
300 psig (21 bar) |
2-1/2″ (65 mm) 3″ (80 mm) |
The simple, yet rugged, ductile iron construction of the JD & KD Series Ultra-Capacity Float & Thermostatic steam traps offer long, trouble-free service. All floats, valves and seats and lever mechanisms are constructed of stainless steel.
The integral thermostatic air vent is a balanced-pressure phosphor-bronze bellows caged in stainless steel. It is designed especially for demanding industrial applications where highly efficient, uninterrupted service is essential. This balanced-pressure type of air vent will respond to the pressure-temperature curve of steam at any pressure from zero to 300 psig (21 bar). Thus-up to 300 psig (21 bar)-air is vented at slightly below steam temperature.
The body of the JD & KD Series steam trap is ASTM A395 Ductile Iron, the connections are screwed and flanged and the flow runs horizontal.