Install Instructions

ManualsBrandsHoffman ManualsHeating Supplies8C-S-3-125, 3/4" Straight Away Thermostatic Trap

INSTRUCTION MANUAL

HS-222

REVISION F

Hoffman Specialty

Float and Thermostatic Traps

Series H, C and X

• Before using product, read and understand instructions.

• Save these instructions for future reference.

• All work must be performed by qualified personnel trained in the proper application,

installation, and maintenance of steam systems in accordance with all applicable codes

and ordinances.

• To prevent serious burns, wear heat resistant gloves when opening and closing steam

valves, or handling hot equipment.

• To prevent serious burns, the internal pressure of the trap must be 0 psi (0 bar) before

servicing.

• To prevent serious personal injury from steam pipe blow down, connect a temporary

pipe between the steam pipe opening and a drain, or stand at least 100 ft. (30 m) from

the front of the pipe opening.

• To prevent property damage, personal injury, or death, cap off the gate valves if they are

not connected to a drain and when they are not in use for test or pressure relief.

Failure to follow this warning could cause property damage, personal injury or death.

WARNING

CAUTION

WARNING

Series C

⁄4 & 1

⁄2 NPT

Series C

2 NPT

Series X

2 NPT

Series C

⁄2 NPT

Series H

Ratings

Maximum Max. Operating

NPT Size - in. Temperature Pressure

°F (°C) psig (bar)

⁄4

”, 1” and

⁄4

” H

406 (208)

175 (12.1)

⁄4

” C and All

⁄2

” -

⁄2

”

377 (192)

Summary of content (6 pages)

PAGE 1
INSTRUCTION MANUAL HS-222 REVISION F Hoffman Specialty® Float and Thermostatic Traps Series H, C and X Series C 11⁄4 & 11⁄2 NPT Series X 2 NPT Series C 2 NPT Series C 21⁄2 NPT Series H Ratings NPT Size - in. ⁄4”, 1” and 11⁄4” H 406 (208) 3 1 ⁄4” C and All 1 ⁄2” - 2 ⁄2” 1 1 ® Maximum Max. Operating Temperature Pressure °F (°C) psig (bar) 1 175 (12.1) 377 (192) ! WARNING • Before using product, read and understand instructions.
PAGE 2
OPERATION Float and thermostatic traps have two basic elements: a thermostat for venting air from the system during start-up and a float assembly for draining condensate. The thermostat is normally open. It allows air to vent until it is within 10-30°F (4-12°C) of the steam temperature. The float assembly drains condensate from the system when buoyancy force lifts the float ball and opens the valve. The weight of the float ball causes the pin to close against the trap seat when condensate is not present.
PAGE 3
STEP 2 IMPORTANT: To prevent system damage from water hammer or sudden shock, open supply valves slowly. If you are uncertain about the product’s adaptability for your application, please call the factory or authorized representative before using the product. The trap seat rating (stamped on the nameplate) must be equal to or greater than the maximum pressure differential across the trap. TYPICAL PIPING DIAGRAMS • Install a Hoffman Specialty Y-strainer in the pipe, ahead of the steam trap.
PAGE 4
REPAIR PROCEDURES FOR ALL TRAPS ! CAUTION To prevent serious burns, the internal pressure of the trap must be 0 psi (0 bar) before servicing. REMOVAL FROM SERVICE 1. Close inlet and outlet supply valves and allow unit to cool. If a test valve is installed, open this valve to relieve any pressure. 2. Remove the drain plug to drain condensate from the trap body. 3. Remove the bolts that attach the cover to the body. Failure to follow this caution will cause personal injury.
PAGE 5
Internal Component Detail Illustration Cover Bolt Pattern Layout Tighten and torque bolts in numerical order, beginning with #1. Series C Trap Cover 2" Standard Capacity Gasket 5 4 1 2 3 6 4 7 Series H 3⁄4 " to 2" Traps and Series C 11⁄4 " and 11⁄2" Traps with six bolt pattern Tighten Bolts to 28 +/- 3 ft-lbs.
PAGE 6
MAINTENANCE TROUBLESHOOTING ! WARNING To prevent serious personal injury from steam pipe blow down, connect a temporary pipe between the steam pipe opening and a drain, or stand at least 100 ft. (30m) from the pipe opening. Failure to follow this warning could cause property damage, personal injury, or death. When checked regularly and properly maintained, the Series FT Float and Thermostatic traps will provide optimum performance and long life.