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Watson® WPS-CA/TD Series

Coupling Nut Pulse Valve

Watson® coupling nut pulse valves use a threaded-nut connection for compact baghouse pulse-jet cleaning systems. The WPS-CA/TD range covers DN20, DN25, and DN40 models for reliable valve replacement and maintenance in industrial dust collectors.

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Watson® coupling nut pulse valve WPS-CA/TD series

Universal Operating Specification

Operating conditions across the WPS-CA range.

Working MediumClean compressed air
Connection TypeThreaded coupling nut
Model RangeWPS-CA/TD20, WPS-CA/TD25, WPS-CA/TD40
Nominal DiameterDN20, DN25, DN40
Typical UseBaghouse pulse-jet cleaning and Watson® valve replacement

Full Model Range

WPS-CA/TD coupling nut pulse valve models.

Threaded-nut Watson® pulse valve series for baghouse pulse-jet cleaning · clean compressed air service · compact replacement and maintenance applications

TypeModel No.Size (Inch)DN SizeEx-Proof Grade
Coupling NutWPS-CA/TD20G1¼″DN20Single Diaphragm
Coupling NutWPS-CA/TD25G1¾″DN25Single Diaphragm
Coupling NutWPS-CA/TD40G2¼″DN40Double Diaphragm

Product Standards

Watson® coupling nut valve support.

CertificationsCE, CCC, RoHS
Ingress ProtectionIP65
InstallationThreaded-nut installation simplifies replacement in compact pulse-jet cleaning systems.
DiaphragmDN20 and DN25 models use a single diaphragm; DN40 uses a double diaphragm for higher airflow.
SupportSupplied through Xiechang® for Watson® pulse valve selection, replacement, and maintenance support.

Certifications

Third-party certified for this product line.

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Explosion-Proof Certificate of Conformity (NEPSI) — WPS-F Series Explosion-Proof Pulse Valves🔍 Click to enlarge

Product Certification

WPS-F series (WPS-F-CA/TG20–TG76, TD20–TD40, EG25–EG40, EP50–EP115, incl. -E/-F/-M variants)

Explosion-Proof Certificate of Conformity (NEPSI) — WPS-F Series Explosion-Proof Pulse Valves

Certificate No.GYB25.2393X
Issued byShanghai Instrument & Automation System Inspection and Testing Institute Co., Ltd. (NEPSI — National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation)
Issued2025-07-30
Valid until2030-07-29
StandardsGB/T 3836.1-2021, GB/T 3836.9-2021, Q/320500 HSXC 004-2022
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UL Certificate of Compliance — Recognized Component, Coil Assembly for Electrically Operated Valves🔍 Click to enlarge

Product Certification

WPS-TZ-XQ (suffix A, B, C, D or E)

UL Certificate of Compliance — Recognized Component, Coil Assembly for Electrically Operated Valves

Certificate No.20150423-MH49402 (Report Reference MH49402-20130423)
Issued byUL LLC
Issued2015-04-23
StandardsUL 429, CAN/CSA C22.2 No. 139-10
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