Watson McDaniel WT4000 Series High-Capacity Thermostatic Steam Trap (Repairable), 5/16" Orifice (No Strainer), Stainless Steel, 300 Psig, 3/4", 1" NPT/Socket Weld
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Technical Specifications
General
| Model | WT4000 (Repairable) |
|---|---|
| Sizes | 3/4", 1" |
| Options | Strainer, Blowdown Valve |
| Brand | Watson McDaniel |
| Manufacturer Part # | WM-WT4000-516-NS |
| Country of Origin | Made in the United States |
Materials & Construction
| Body Material | Stainless Steel |
|---|
Performance
| PMO Max. Operating Pressure | 300 PSIG |
|---|---|
| TMO Max. Operating Temperature | Saturated Steam Temperature |
| PMA Max. Allowable Pressure | 906 PSIG @ 100°F |
| TMA Max. Allowable Temperature | 750°F @ 725 PSIG |
Connections
| Connections | NPT, SW, FLG |
|---|
Overview
Watson McDaniel WT4000 Series High-Capacity Thermostatic Steam Trap - No Strainer (Repairable)
Features:
- The thermal element and seat can be easily removed and replaced in minutes with the trap body still in-line.
- Operates at steam pressures up to 300 PSIG.
- Thermostatic traps are excellent at discharging air, which allows steam to enter quickly; extremely important during start-up.
- Welded stainless steel thermal element resists shock from water hammer.
- Freeze proof when the trap is installed in a vertical orientation allowing for complete condensate drainage.
- Body is produced from stainless steel investment casting.
- Hardened stainless steel seat for extended service life.
- Available with integral strainer and blowdown valve.
Options & Features (See Specification Sheet For Full List):
WT4000 High-Capacity Thermostatic Steam Trap (Repairable)
PROCESS: The WT4000* thermostatic steam trap is used for industrial process applications. Their compact size, all stainless steel construction, excellent air handling capability and wide operating pressure range make them a great choice for most process applications. Thermostatic traps are far superior to bucket traps and thermodynamic disc traps in their ability to remove air from the system.
* WT4001 refer to 5/16" orifice size, WT4003 refer to 7/16" orifice size.
PROCESS: The WT4000 is a high capacity version of the WT3000, for removing condensate and air from larger process applications. This steam trap is fully repairable while the body remains in-line. Like all thermostatic traps, they are small, light weight, operate over a wide pressure range, and have excellent air handling capabilities. Discharging air at start-up allows steam to quickly enter the system. All stainless steel construction and integral strainer option make the WT4000 an excellent choice for most process applications. Contains an extremely strong and rugged precision welded Stainless Steel thermal element which is highly resistant to water hammer.
How It Works
This thermostatic trap contains a welded stainless steel thermal element that expands when heated and contracts when cooled to 5°F below saturated steam temperature. When air or sub-cooled condensate are present, the trap is in the open discharge position. When steam reaches the trap, the element expands and closes off tightly.
Selection / Sizing / Capacities
Two orifice sizes are available: 7/16" standard capacity and 5/16" reduced capacity. Select these models for steam systems with maximum working pressure of 300 PSIG. Refer to the Capacity Chart to determine which model, the WT4001 or WT4003 is required to satisfy the condensate load based on steam inlet pressure.
S = Strainer (WT4001S)
SB = Strainer and blowdown valve (WT4001SB)
Example:
- Application: 5610 lbs/hr at 100 PSIG steam inlet pressure
- Size/Model: WT4001S, 5/16" orifice, and strainer. Specify size & connections (NPT, SW, FLG)
Example Model Codes:
- WT4001S-13-N 3/4" NPT with strainer, and 5/16" orifice
- WT4003SB-14-N 1" NPT with strainer and blowdown valve,7/16" orifice
Options
Special Available:
- SLR = Steam lock release
- Customized Flanged Connections: Specify size, face-to-face dimensions.
Installation & Maintenance
Trap can be installed in any orientation. All internal working components are extremely easy to replace and can be performed while the trap body remains connected in-line. Repair kit includes ALL parts to fully rebuild the steam trap including thermal element, seat and gasket. The WT4000 does not contain a strainer. The WT4000S contains a strainer. WT4000SB contains a blowdown valve for flushing dirt and scale from strainer.
Sample Specification
The steam trap shall be of thermostatic type with stainless steel body, thermal element, and internal strainer. Trap must be in-line repairable with a bolt-on type cover that is sealed with a spiral wound Stainless Steel AISI 316 gasket. Seat and valve to be hardened stainless steel.