
A743-CA40F Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $37.95 | Top Pick! Condition is New – Open box, SPIRAX-SARCO 56634 STEEL DISC, 1/2" TD52, 3/4" TD52L, NIB, FREE SHIPPING | ![]() |
![]() | $48.00 | Condition is New – Open box, Spirax-Sarco 56634 disc for 1/2" TDS52 TD52 3/4" TD52L TDS52L trap 64 available, FREE SHIPPING | 99.8% |
![]() | $99.00 | Condition is New – Open box, SPIRAX SARCO 1/2 STEAM TRAP 54771C TD52L, FREE SHIPPING | 100.0% |
![]() | $99.00 | Top Pick! Condition is New – Open box, Spirax Sarco TD42L A743CA40F 1/2" Thermodynamic Steam Trap NEW, shipping cost = $11.80 | 100.0% |
![]() | $100.00 | Condition is New – Open box, Spirax Sarco steam trap TD-52L 3.5PSI To 600PSI 1/2", shipping cost = $10.15 | 100.0% |
![]() | $100.00 | Condition is New – Open box, SPIRAX SARCO STEAM TRAP A743CA40F, shipping cost = $15.10 | 100.0% |
![]() | $120.00 | Condition is New – Open box, 1/2" Spirax Sarco TD52L A743 Threaded Thermodynamic Steam Trap 600PSIG NEW, shipping cost = $29.04 | 100.0% |
![]() | $186.00 | Condition is New – Open box, SPIRAX SARCO A743-CA40F-1/2 TD52 0-600PSI NSNP, FREE SHIPPING | 99.9% |
![]() | $180.00 | Top Pick! Condition is New – Open box, SPIRAX SARCO TD-52L (54771C) VALVE, shipping cost = $12.33 | 99.7% |
![]() | $185.00 | Condition is New – Open box, Spirax A743 CA40F 1/2"NPT Dynamic Steam Trap, shipping cost = $15.60 | 99.4% |
![]() | $208.95 | Condition is New – Open box, Spirax Sarco A743CA40F Td42l Steam Trap 3/4in Npt, FREE SHIPPING | ![]() |
![]() | $199.00 | Condition is New – Open box, NEW 1/2" npt Spirax-Sarco TD52L Thermodynamic steam Trap,B.M. 54771,TD-52L,EB, shipping cost = $10.00 | 100.0% |
![]() | $209.95 | Condition is New – Open box, SPIRAX SARCO A743CA40F, 3/4 Steam Trap, 1930A, FREE SHIPPING | 100.0% |
![]() | $197.00 | Condition is New – Open box, 1/2" SPIRAX SARCO 54771C TD-52L COOL BLUE THERMO DYNAMIC STEAM TRAP 600 PSI NEW, shipping cost = $21.18 | 100.0% |
![]() | $238.00 | Condition is New – Open box, SPIRAX SARCO A743CA40F NSMP, FREE SHIPPING | 99.9% |
![]() | $238.00 | Condition is New – Open box, SPIRAX SARCO A743CA40F THERMO DYNAMIC STEAM TRAP 3/8" NSMP, FREE SHIPPING | 99.9% |
![]() | $238.00 | Condition is New – Open box, SPIRAX SARCO A743CA40F THERMO DYNAMIC STEAM TRAP 3/4" NSMP, FREE SHIPPING | 99.9% |
![]() | $249.00 | Condition is New – Open box, Spirax Sarco 1/2" Thermo Dynamic Steam Trap TD52L, shipping cost = $ | 99.6% |
![]() | $249.00 | Condition is New – Open box, Spirax Sarco 1/2" TD52L Thermo Dynamic Steam Trap , shipping cost = $ | 99.6% |
![]() | $249.00 | Condition is New – Open box, NEW 1/2" npt Spirax-Sarco 1/2 TD52L Thermodynamic steam Trap,B.M. 54771C,AK, shipping cost = $8.00 | 100.0% |
![]() | $279.00 | Condition is New – Open box, NEW 1/2" npt Spirax-Sarco 1/2 TD52L Thermodynamic steam Trap,B.M. 54771C,A743,BW, shipping cost = $10.00 | 100.0% |
![]() | $295.00 | Condition is New – Open box, NEW SPIRAX SARCO 54531C 3/4" TD52 THERMO-DYNAMIC STEAM TRAP 600 PSIG A743 CA40F, FREE SHIPPING | 100.0% |
![]() | $298.26 | Condition is New – Open box, SPIRAX-SARCO TD52L 3/4" Stainless Thermodynamic Steam Trap 600 psi 59314, FREE SHIPPING | 99.9% |
![]() | $298.26 | Condition is New – Open box, SPIRAX-SARCO TD52L 1/2" Stainless Thermodynamic Steam Trap 600 psi 54771C, FREE SHIPPING | 99.9% |
![]() | $299.00 | Condition is New – Open box, Spirax Sarco TD52L 1/2" NPT Thermodynamic Steam Trap 54771C, shipping cost = $ | 99.6% |
![]() | $295.00 | Condition is New – Open box, New Spirax Sarco COOL BLUE UTD52L Thermo Dynamic Steam Trap,A743 CA40F,AY,BU, shipping cost = $14.00 | 100.0% |
![]() | $299.00 | Condition is New – Open box, NEW 1/2" npt Spirax-Sarco TD52L Thermodynamic steam Trap COOL BLUE 54771C,EU, shipping cost = $10.00 | 100.0% |
![]() | $333.00 | Condition is New – Open box, NEW 3/4" TD52L Spirax Sarco,B.M. 59314C Cool-blue THERMO-DYNAMIC Steam Trap,AA, shipping cost = $11.00 | 100.0% |
![]() | $350.00 | Condition is New – Open box, Spirax Sarco TD52L Thermo Dynamic Steam Trap 3/4", FREE SHIPPING | 100.0% |
![]() | $349.00 | Condition is New – Open box, new 3/4" npt Spirax Sarco TD52L,B.M. 59314 THERMO-DYNAMIC Steam Trap LIVE,CR, shipping cost = $8.00 | 100.0% |
![]() | $349.00 | Condition is New – Open box, new 3/4" npt Spirax Sarco 3/4 TD52L,B.M. 59314C THERMO-DYNAMIC Steam Trap,BU, shipping cost = $10.00 | 100.0% |
![]() | $349.00 | Condition is New – Open box, NEW Spirax Sarco TD52L STEAM Trap,3/4" TD52L,B.M. 59314C THERMO-DYNAMIC,AO, shipping cost = $12.00 | 100.0% |
![]() | $349.00 | Condition is New – Open box, 3/4" Spirax Sarco TD52L,B.M 59314C THERMO-DYNAMIC Steam Trap LIVE STEAM,EO,TG,BU, shipping cost = $12.00 | 100.0% |
![]() | $349.00 | Condition is New – Open box, NEW 3/4" Spirax Sarco TD52,M THERMO-DYNAMIC Steam Trap LIVE STEAM,BL, shipping cost = $12.00 | 100.0% |
![]() | $381.42 | Top Pick! Condition is New – Open box, Spirax Sarco A743 CA40F Thermo Dynamic Steam Trap 800 F/0-600 Psig, FREE SHIPPING | ![]() |
![]() | $395.00 | Condition is New – Open box, NEW 3/4" SPIRAX SARCO TD52L,B.M.39314C THERMO DYNAMIC STEAM TRAP COOL BLUE,EN,AA, shipping cost = $10.00 | 100.0% |
![]() | $395.00 | Condition is New – Open box, 3/4" npt Spirax Sarco TD52L,B.M. 59314C Cool-blue THERMO-DYNAMIC Steam Trap,BO, shipping cost = $11.00 | 100.0% |
![]() | $399.00 | Condition is New – Open box, NEW 3/4 npt Spirax-Sarco TD52 Thermodynamic steam Trap COOL BLUE A743 CA40F,BQ, shipping cost = $10.00 | 100.0% |
![]() | $425.00 | Condition is New – Open box, New Spirax Sarco COOL BLUE UTD52H Thermo Dynamic Steam Trap,A743 CA40F,AP, shipping cost = $14.00 | 100.0% |
![]() | $467.00 | Condition is New – Open box, SPIRAX SARCO 54771C TD52L 600PSI 1/2" NSMP, FREE SHIPPING | 99.9% |
![]() | $470.00 | Condition is New – Open box, 3/4" Spirax Sarco TD52L NPT Thermodynamic Steam Trap NEW IN BOX 2025, shipping cost = $25.74 | 100.0% |
![]() | $549.00 | Condition is New – Open box, SPIRAX SARCO 59314C TD52L 600PSI 3/4" NSMP, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Condition is New, SPIRAX SARCO 56634 DISC FOR 1/2" TD52 3/4" TD52L TDS52L STEAM TRAP -15 AVAILABLE, FREE SHIPPING | 100.0% |
![]() | $59.99 | Top Pick! Condition is New, Spirax Sarco 56634 Stainless Steel Replacement Disc for 1/2" TD52 or 3/4" TD52L, FREE SHIPPING | 100.0% |
![]() | $100.00 | Top Pick! Condition is New, Spirax Sarco SS Replacement Disc For 3/8 TD50/52, Or 1/2 TD52L & TDS52L , shipping cost = $8.62 | 100.0% |
![]() | $125.00 | Top Pick! Condition is New, Spirax Sarco 56634 Stainless Steel Replacement Disc for 1/2" TD52, 3/4" TD52L, shipping cost = $8.62 | 100.0% |
![]() | $164.99 | Condition is New, Spirax Sarco 70505 Replacement Cap 600PSI 1/2" TD52L Thermodynamic Steam Trap, FREE SHIPPING | 99.9% |
![]() | $165.00 | Condition is New, Spirax Sarco 54771C TD52L Stainless Steel Steam Trap 1/2 Inch NPT, shipping cost = $7.60 | 100.0% |
![]() | $179.91 | Condition is New, Spirax Sarco A743CA40F 3/8" TD-52 Thermodynamic Steam Trap - 3.5PSI to 600PSI, FREE SHIPPING | 99.7% |
![]() | $185.00 | Condition is New, SPIRAX SARCO TD-52L 54771 1/2" STEAM TRAP TD52L - 2 AVALABLE, FREE SHIPPING | 100.0% |
![]() | $210.00 | Condition is New, NEW SPIRAX SARCO 54531C 3/4" TD52 THERMO-DYNAMIC STEAM TRAP 600 PSIG A743 CA40F, shipping cost = $27.00 | 100.0% |
![]() | $250.00 | Condition is New, SPIRAX SARCO TD-52L 54771C 1/2" STEAM TRAP TD52L - 16 AVAILABLE, FREE SHIPPING | 100.0% |
![]() | $130.00 | Top Pick! Condition is New, 1/2" NPT Spirax Sarco TD52L , Cool-blue THERMO-DYNAMIC Steam Trap, shipping cost = $143.15 | 100.0% |
![]() | $313.20 | Condition is New, Spirax Sarco 59314C Steam Trap 3/4" TD52L Thermo Dynamic Cool Blue 600psig New, FREE SHIPPING | ![]() |
![]() | $329.00 | Condition is New, NEW SPIRAX SARCO600 PSIG TD-52L 59314C 3/4" COOL BLUE STEAM TRAP TD52L, FREE SHIPPING | ![]() |
![]() | $350.00 | Condition is New, SPIRAX SARCO TD-52L 59314C 3/4" COOL BLUE STEAM TRAP TD52L - 12 AVAILABLE, FREE SHIPPING | 100.0% |
![]() | $528.79 | Condition is New, Spirax Sarco 54771C TD52L Stainless Steel Thermodynamic Steam Trap 1/2 Inch NPT, FREE SHIPPING | ![]() |
![]() | $598.50 | Condition is New, Spirax-Sarco 54771C TD52L 1/2" DISC TRAP, FREE SHIPPING | 99.7% |
![]() | $603.73 | Condition is New, Spirax-Sarco 54771C TD52L 1/2" DISC TRAP, FREE SHIPPING | 98.6% |
![]() | $690.68 | Condition is New, Spirax-Sarco 59314C TD52L 3/4 Thermodynamic Steam Trap 600 psi, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $52.00 | Condition is Used, Spirax Sarco TD42L A743CA40F Thermodynamic Steam Trap 1/2" NPT, shipping cost = $9.50 | 100.0% |
![]() | $124.50 | Condition is Used, Spirax/Sarco - A743 CA40F - Dynamic Steam Trap - 1/2" NPT , FREE SHIPPING | 99.6% |
![]() | $211.84 | Top Pick! Condition is Used, Spirax Sarco A743 CA40F Thermo Dynamic Steam TD3-3LC, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $115.08 | Condition is New other (see details), Spirax Sarco Thermo Dynamic Steam Trap DN20 3/4" A743CA40F, shipping cost = $31.97 | 100.0% |

The Spirax Sarco A743-CA40F 1/2 NPT TD52L Thermodynamic Steam Trap is a high-performance, thermostatic steam trap designed for applications that require efficient and reliable steam system management. This particular model is part of Spirax Sarco's extensive range of steam traps and is well-suited for use in various industries, including manufacturing, power generation, and food processing.
The A743-CA40F trap operates on a thermodynamic principle that utilizes the temperature difference between the condensate and the steam to activate and deactivate the trap. This design ensures that only condensate is discharged from the system, while steam is returned to the boiler for reheat, thereby maximizing energy efficiency and reducing fuel consumption.
The trap features a 1/2 NPT thread connection, which is a common connection size for steam systems. The CA40F designation refers to the operating conditions, with CA indicating a vacuum-proof construction and 40F representing the minimum operating temperature of 40 F (-40 C).
The TD52L model has a flow capacity of 0.12 l/s (0.0042 gal/min) at a temperature lift of 15 C (27 F), making it suitable for applications with moderate flow rates. The trap's body is made of cast iron, providing durability and resistance to corrosion.
Additionally, the A743-CA40F trap comes with a factory-installed, non-return check valve, which prevents backflow of condensate into the steam system during non-condensing operation. This feature ensures that the steam system maintains its pressure and purity, preventing contamination and potential damage to equipment.
Spirax Sarco's A743-CA40F 1/2 NPT TD52L Thermodynamic Steam Trap is an essential component in maintaining the efficiency and reliability of steam systems. Its thermodynamic design, vacuum-proof construction, and non-return check valve make it a versatile and effective solution for a wide range of industrial applications.
The Spirax Sarco A743-CA40F 1/2 NPT Spirax-Sarco TD52L Thermodynamic Steam Trap BM 54771C is a type of steam trap designed for efficient steam system operation. Here are some pros and cons of investing in this particular steam trap model:
Pros:1. Energy Efficiency: The TD52L steam trap is a thermodynamic trap, which means it operates based on the temperature difference between the steam and the condensate. This design helps reduce energy consumption by preventing the loss of valuable heat energy.
2. Long Service Life: Spirax Sarco is known for manufacturing high-quality steam traps, and the TD52L model is no exception. It is built to last, with a robust design that can withstand the rigors of industrial steam systems.
3. Low Maintenance: The TD52L steam trap requires minimal maintenance due to its self-cleaning design. This feature helps reduce downtime and maintenance costs.
4. Versatile Application: This steam trap can be used in various industries, including power generation, pharmaceuticals, food processing, and more. Its 1/2 NPT connection size makes it a popular choice for many applications.
Cons:1. Cost: The Spirax Sarco TD52L steam trap is a premium product, and its price reflects its high-quality features and design. This cost may be a barrier for some potential buyers.
2. Complex Installation: Installing a steam trap can be a complex process, and the TD52L model may require specialized knowledge and expertise. It is recommended to consult with a steam system professional for installation.
3. Size and Weight: The TD52L steam trap is larger and heavier than some other steam trap models, which may require additional space and handling during installation and transportation.
Conclusion:The Spirax Sarco A743-CA40F 1/2 NPT Spirax-Sarco TD52L Thermodynamic Steam Trap BM 54771C is a high-performance steam trap that offers energy efficiency, long service life, low maintenance, and versatility. However, it comes with a higher cost, complex installation, and larger size and weight compared to some other models. If the benefits of energy efficiency, low maintenance, and long service life outweigh the costs and installation complexities, then the TD52L steam trap may be a worthwhile investment.
Recommendation:For industrial applications where energy efficiency, low maintenance, and long service life are essential, the Spirax Sarco A743-CA40F 1/2 NPT Spirax-Sarco TD52L Thermodynamic Steam Trap BM 54771C is a recommended choice. It may require a larger initial investment, but the long-term benefits can justify the cost. It is important to consult with a steam system professional for proper installation and maintenance to ensure optimal performance and longevity.
Details:
Shipped with ups ground. New 1/2 npt Spirax-Sarco TD52L thermodynamic steam trap,b.m.
specifications maxohvac:
- brand: Spirax Sarco
- mpn: A743-ca40f
- model: Td52l
- type: Acid Test Kit
- custom bundle: No
- upc: 693037908434
returns maxohvac:
- policy: no returns
seller maxohvac:
- city: lafayette, louisiana
- # reviews: 1546
- rating: 100.0%
offer maxohvac:
- prices: $52.00–$690.68
- item condition:
- New – Open box
- New
- Used
- New other (see details)
- availability: in stock
- started: february 25, 2025
- sold #: 24
- options: ship-to-home
- in stock #: 5
shipping maxohvac:
- type: fixed
- service: ups ground
- transit: 3-8 days
- carrier: ups
- class: standard
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- other
- wallet: paypal
- credit card: discover
































































