Watson® WPS-CA Immersed Series

Immersed Pulse Valve

Watson® immersed pulse valves are embedded in the air header to reduce pressure loss and deliver a strong cleaning pulse directly into baghouse filter bags. The WPS-CA immersed range covers DN25 through DN115 models with CE, CCC, RoHS, and IP65 protection.

View Immersed Model Range Request a Quote

Universal Operating Specification

Operating conditions across the WPS-CA range.

Working Pressure0.2-0.6 MPa (2-6 bar)

MediumClean, dry compressed air

Working VoltageDC24V, AC220V/50Hz to AC240V/60Hz

Protection ClassIP65 waterproof and dustproof

EnvironmentTemperature −40°C to 120°C; humidity ≤ 85%

Full Model Range

Watson® WPS-CA immersed pulse valve models.

Working pressure 0.2-0.6 MPa · clean, dry compressed air · DC24V or AC220V/50Hz-AC240V/60Hz · IP65 · CE / CCC / RoHS certified

Type	Model No.	Size (Inch)	DN Size	Ex-Proof Grade
Immersed	WPS-CA/EG25	1″	DN25	Single Diaphragm
Immersed	WPS-CA/EG40	1½″	DN40	Single Diaphragm
Immersed	WPS-CA/EP50	2″	DN50	Double Diaphragm
Immersed	WPS-CA/EP62	2½″	DN65	Double Diaphragm
Immersed	WPS-CA/EP76	3″	DN80	Double Diaphragm
Immersed	WPS-CA/EP102.B	3.5″	DN90	Double Diaphragm
Immersed	WPS-CA/EP102	4″	DN100	Double Diaphragm
Immersed	WPS-CA/EP115	4½″	DN115	Double Diaphragm

Product Standards

Watson® immersed pulse valve advantages.

CertificationsCE, CCC, RoHS

Ingress ProtectionIP65

Submerged StructureSubmerged structure places the valve body in the air header to reduce pressure drop and improve pulse intensity.

DiaphragmWatson® premium diaphragms support long service life in high-load industrial baghouse cleaning systems.

ApplicationSuitable for maintenance, replacement, and upgrade projects requiring reliable Watson® immersed pulse valves.

Certifications

Third-party certified for this product line.

View all certificates →

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 by	Shanghai Instrument & Automation System Inspection and Testing Institute Co., Ltd. (NEPSI — National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation)
Issued	2025-07-30
Valid until	2030-07-29
Standards	GB/T 3836.1-2021, GB/T 3836.9-2021, Q/320500 HSXC 004-2022

Need the original PDF?

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 by	UL LLC
Issued	2015-04-23
Standards	UL 429, CAN/CSA C22.2 No. 139-10

Need the original PDF?

Technical Drawings

Overall length (valve)	🔒
Diaphragm cover flange OD	Ø227 [8.94]
Inner bolt/ring diameter	🔒
Diaphragm bore	🔒
Cover thickness / lip	7 [0.26]
Solenoid/pilot boss offset	27 [1.06]

Overall length (valve)	217.3 [8.554]
Diaphragm cover flange OD	Ø239 [9.41]
Inner ring diameter	🔒
Diaphragm ring ø	Ø202.2 [7.961]
Diaphragm bore	🔒
Cover/top boss offset	🔒

Overall length (valve)	188 [7.4]
Mounting flange OD	Ø180 [7.09]
Ring ø	Ø130 [5.12]
Diaphragm/seat ø	🔒
Seat bore ø (tol)	🔒
Cover/top boss offset	🔒

Overall length (valve)	196 [7.72]
Mounting flange OD	Ø208 [8.19]
Ring ø	🔒
Diaphragm ø	🔒
Seat bore ø (tol)	🔒
Cover/top boss offset	7 [0.28]

Overall height (valve incl. solenoid)	200 [7.87]
Diaphragm cover flange OD	🔒
Ring ø	Ø174.6 [6.84]
Inner ring ø	Ø160 [6.3]
Seat/diaphragm bore ø	🔒
Cover/side boss offset	🔒

Overall length (valve)	140 [5.51]
Inlet flange/hub OD	Ø59 [2.32]
Port bore ø	🔒
Thread	G1"
Top boss offset	🔒
Mounting flange face to body	🔒

Overall length (valve)	184 [7.24]
Inlet flange/hub OD	Ø73 [2.87]
Port bore ø	🔒
Thread (inlet)	G1-1/2"
Top boss offset	🔒
Mounting flange face to body	🔒

Overall outer / mounting flange OD	Φ490 [Φ19.29]
Bolt-circle diameter (bcd)	🔒
Inner opening / port diameter	Φ435 [Φ17.13]
Diaphragm / spring seat diameter (bolt pattern *10)	🔒
Bolt holes	🔒
Flange thickness (top)	20 [0.79]

Overall outer / mounting flange OD	Φ600 [Φ23.62]
Bolt-circle diameter (bcd)	🔒
Inner opening / port diameter	Φ512 [Φ20.16]
Diaphragm / spring seat diameter (bolt pattern *10)	🔒
Bolt holes	🔒
Flange thickness (top)	20 [0.79]

Overall outer / mounting flange OD	Φ730 [Φ28.74]
Bolt-circle diameter (bcd)	🔒
Inner opening / port diameter	Φ616 [Φ24.25]
Diaphragm / spring seat diameter (bolt pattern *10)	🔒
Bolt holes	🔒
Flange thickness (top)	20 [0.79]

Overall outer / mounting flange OD	Φ842 [Φ33.15]
Bolt-circle diameter (bcd)	🔒
Inner opening / port diameter	Φ716 [Φ28.19]
Diaphragm / spring seat diameter (bolt pattern *10)	🔒
Bolt holes	🔒
Flange thickness (top)	20 [0.79]

Overall outer / mounting flange OD	Φ940 [Φ37.01]
Bolt-circle diameter (bcd)	🔒
Inner opening / port diameter	Φ806 [Φ31.73]
Diaphragm / spring seat diameter (bolt pattern *10)	🔒
Bolt holes	🔒
Flange thickness (top)	20 [0.79]

Immersed Pulse Valve

Operating conditions across the WPS-CA range.

Watson® WPS-CA immersed pulse valve models.

Watson® immersed pulse valve advantages.

Third-party certified for this product line.

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

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

Installation dimensions for this product.

WPS-CA/EP102 · immersed valve — Installation Drawing

WPS-CA/EP102.B · immersed valve — Installation Drawing

WPS-CA/EP102.B · immersed valve — Installation Drawing

WPS-CA/EP115 · immersed valve — Installation Drawing

WPS-CA/EP50 · immersed valve — Installation Drawing

WPS-CA/EP62 · immersed valve — Installation Drawing

WPS-CA/EP76 · immersed valve — Installation Drawing

WPS-CA/EP76 · immersed valve — Installation Drawing

WPS-CA/EG25 · immersed valve — Installation Drawing

WPS-CA/EG40 · immersed valve — Installation Drawing

WPS-CA/EP200 · 8 inch · ultra-low-pressure large valve — Installation Drawing

WPS-CA/EP250 · 10 inch · ultra-low-pressure large valve — Installation Drawing

WPS-CA/EP300 · 12 inch · ultra-low-pressure large valve — Installation Drawing

WPS-CA/EP350 · 14 inch · ultra-low-pressure large valve — Installation Drawing

WPS-CA/EP400 · 16 inch · ultra-low-pressure large valve — Installation Drawing

Contact