| Model | Maximum Allowable Pressure |
Float Diameter |
Unbalanced Float Weight |
Body Material |
Connection Type |
Connection Sizes |
| 2313- HLS |
1000 psig @ 100°F (69 barg @ 38°C) 600 psig @ 750°F (41 barg @ 400°C) |
3-1/2″ (89 mm) |
4 oz (113 g) |
ASTM A105 Forged Steel |
Screwed, Socketweld, Flanged |
1/2″ (15 mm) 3/4″ (20 mm) 1-1/2″ (40 mm) |
| 2315- HLS |
1000 psig @ 100°F (69 barg @ 38°C) 600 psig @ 750°F (41 barg @ 400°C) |
4″ (102 mm) |
4-1/2 oz (128 g) |
ASTM A105 Forged Steel |
Screwed, Socketweld, Flanged |
1″ (25 mm) 1-1/4″ (32 mm) 1-1/2″ (40 mm) |
| 2316- HLS |
11000 psig @ 100°F (69 barg @ 38°C) 600 psig @ 750°F (41 barg @ 400°C) |
5″ (127 mm) |
6 oz (170 g) |
ASTM A105 Forged Steel |
Screwed, Socketweld, Flanged |
1-1/2″ (40 mm) 2″ (50 mm) |
| 2413- HLS |
1500 psig @ 100°F (103 barg @ 38°C) 900 psig @ 850°F (62 barg @ 454°C) |
3-1/2″ (89 mm) |
4 oz (113 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
1/2″ (15 mm) 3/4″ (20 mm) 1-1/2″ (40 mm) |
| 2415- HLS |
1800 psig @ 100°F (125 barg @ 38°C) 900 psig @ 900°F (62 barg @ 482°C) |
4″ (102 mm) |
4-1/2 oz (128 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
1″ (25 mm) 1-1/4″ (32 mm) 1-1/2″ (40 mm) |
| 2416- HLS |
1800 psig @ 100°F (125 barg @ 38°C) 900 psig @ 900°F (62 barg @ 482°C) |
5″ (127 mm) |
6 oz (170 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
1-1/2″ (40 mm) 2″ (50 mm) |
| 25133G- HLS |
2120 psig @ 100°F (146 barg @ 38°C) 1700 psig @ 900°F (117 barg @ 482°C) |
3-1/2″ (89 mm) |
4 oz (113 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
1/2″ (15 mm) 3/4″ (20 mm) 1-1/2″ (40 mm) |
| 25155G- HLS |
2520 psig @ 100°F (174 barg @ 38°C) 2000 psig @ 900°F (138 barg @ 482°C) |
4″ (102 mm) |
4-1/2 oz (128 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
3/4″ (20 mm) 1″ (25 mm) 1-1/4″ (32 mm) |
| 26155G- HLS |
3700 psig @ 100°F (255 barg @ 38°C) 3000 psig @ 900°F (207 barg @ 482°C) |
4″ (102 mm) |
4-1/2 oz (128 g) |
ASTM A182Gr. F22 Forged Steel |
Screwed, Socketweld, Flanged |
1″ (25 mm) 1-1/4″ (32 mm) 1-1/2″ (40 mm) |
Armstrong HLS (High Leverage Series) liquid drain traps were developed especially for draining low specific gravity fluids from gases at high pressures. They use standard Armstrong forged steel bodies with very high leverage systems and spring assist.
NOTE: Models 2313-HLS, 2316-HLS, 2413-HLS and 2415-HLS are also available with cast T-316 stainless steel body and all-stainless steel internals. Consult factory.
Because of design considerations in this drain trap, it is essential that a safety factor of at least 2 be applied to the peak liquid load for sizing purposes.
Do not use HLS drain traps on steam service.
Forged steel and stainless steel traps can be modified to resist hydrogen sulfide stress corrosion. These modifications involve annealing the float, which will reduce the maximum working pressure of the float to about half its normal value. Consult Armstrong Application Engineering for allowable working pressures.
