
Product family
Valves
Isolation, non-return and flow-control components specified for liquid-cooling equipment and assemblies.

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Relief Valves
Pressure-relief components that require a controlled set point and discharge responsibility.
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Flow-Control Valves
Balancing, restricting, or controlling components for a stated operating range.
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All Product drafts
Private preview · candidate records
23 local draft records. Includes unfinished records and Family overviews. Draft · Noindex. Reference configurations are not approved stock. Image public-use review remains separate.
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LCP-000084
558 LC High-Flow Press-In Check Valve — Lee Reference
A higher-flow LC-series press-in non-return cartridge, distinct from a standard 558 version. The catalog lists 5.46 mm part diameter, metal-to-metal seat and…
- Part diameter
- 5.46 mm
- Listed flow resistance
- 140 Lohms; manufacturer describes higher flow capacity than its standard 558 Series

LCP-000082
6 mm Elastomer-Seat Plastic Press-In Check Valve — Lee Reference
A plastic-housing press-in non-return cartridge with an elastomeric seat and listed 5.94 mm part diameter. It is a different installation object from…
- Part diameter
- 5.94 mm
- Listed flow resistance
- 250 Lohms

LCP-000083
6.5 mm Metal-Seat Press-In Check Valve — Lee Reference
A compact plastic-housing press-in check cartridge with metal-to-metal seat, 6.60 mm listed diameter and 75-Lohm catalog flow-resistance reference.
- Part diameter
- 6.60 mm
- Listed flow resistance
- 75 Lohms

LCP-000081
8 mm Elastomer-Seat Metal-Insert Check Valve — Lee Reference
A compact non-return cartridge for a metal housing. The maker's 8 mm Zero Leak family lists a 7.95 mm body diameter and…
- Part diameter
- 7.95 mm
- Listed flow resistance
- 250 Lohms

LCP-000085
832 Side-Exit Metal-Insert Check Valve — Lee Reference
A threadless metal-housing check cartridge with a side-exit flow path. The maker lists 7.95 mm part diameter and a configuration-dependent resistance as…
- Part diameter
- 7.95 mm
- Listed flow resistance
- As low as 55 Lohms; configuration dependent

LCP-000106
90° Hose-Barb Interlock Valve Half — BEEHE FND Reference
A single FND valve half with a 90-degree barbed hose outlet, supplied as an interface choice for a matched interlocking pair. The…
- End connection
- 90° elbow hose-barb end variants are separately listed for FND25 and FND40, with blue…
- Material seal
- FND series lists SUS304 body and EPDM seal; actual barb and hose fit require…

LCP-000031
Adjustable-Cracking Check Valve — FITOK CA Reference
An individually pictured elongated CA-series check valve for applications requiring a selected adjustable opening setting, subject to spring choice and an explicit…
- Manufacturer max working pressure
- up to 207 bar
- Listed temperature span
- -23 to 190 degC

LCP-000055
Automatic Water Flow Controller — SMC FC2W520-04-3-X110 Reference
An inline powered flow controller for water circuits, with a 2–16 L/min control range, Rc 1/2 ports and 24 VDC input. The…
- Rated flow control range
- 2.0–16.0 L/min
- Process port
- Rc 1/2

LCP-000029
Compact Fixed-Cracking Check Valve — FITOK CO Reference
A separately pictured compact CO-series one-piece check valve with threaded ends, documented fixed cracking-pressure choices and configuration-dependent pressure-temperature limits.
- Manufacturer max working pressure
- up to 207 bar
- Listed temperature span
- -23 to 190 degC

LCP-000079
Direct-Acting Two-Port Water Solenoid Valve — SMC JSX Reference
A normally closed, electrically actuated two-port fluid valve represented by an individual JSX series product photograph. Body, seal, port and coil are…
- Body material options
- Stainless steel (SUS) or brass body ordering options
- Seal material options
- NBR, FKM or EPDM ordering options

LCP-000030
Floating-Seal Fixed-Cracking Check Valve — FITOK CH Reference
A single pictured CH-series tube-fitting check valve whose documented floating-seal construction and selected spring opening behavior distinguish it from the compact CO…
- Manufacturer max working pressure
- up to 414 bar
- Listed temperature span
- -12 to 204 degC

LCP-000105
Interlocking Supply/Return Ball-Valve Pair — BEEHE FND Reference
A linked red/blue ball-valve pair for a rack-to-secondary-loop connection. The interlock is the purchasing difference from two independent shutoff valves; final ends…
- Body material
- SUS304 stainless steel body; EPDM listed as standard sealing-ring material
- Series max working pressure
- 150 psi maximum working pressure in the FND series table psi
Component overview
Liquid Cooling Check Valves
A candidate family page for one-way flow requirements under stated operating conditions.
- Interface
- DIN/ISO welded; clamp
- Seal
- EPDM
Component overview
Liquid Cooling Flow-Control Valves
A candidate family page for balancing or control requirements within a bounded loop.
- Interface
- Ready-built rack-to-TCS valve-train assembly; exact connections are configuration-dependent.
- Maximum flow coefficient cv
- 0.15

LCP-000108
Manual Clamp-End Butterfly Isolation Valve — AODSON Reference
A lever-operated butterfly valve with clamp-end ferrules and a bolted body. The pictured valve is a configuration reference for secondary-loop piping; the…
- Material options
- 304 and 316 stainless steel are referenced; exact body, disc, stem and other wetted…
- Connection reference
- A supplier option lists diameter 19 and a 50.5 mm clamp ferrule; the meaning…

LCP-000003
Manual Fine-Metering Valve — Straight or Angle Pattern
A manually adjusted needle-style metering component for controlled branch-flow restriction, with documented series geometry and handle choices but no implied site-wide flow…
- Maximum flow coefficient cv
- 0.15
- Flow patterns
- Straight and angle configurations

LCP-000002
Manual Thermoplastic Double-Union Ball Valve
A serviceable manual isolation valve with union connections on both sides, represented by a documented thermoplastic series with material-, seal- and connection-dependent…
- Body and seal options
- body: PVC-U; PVC-C; ABS; PP-H; PVDF; o rings: EPDM; FKM; FFKM; seat: PTFE; PVDF
- Nominal pressure designations
- ABS PP H: PN10; PVC U PVC C PVDF: PN16

LCP-000086
Miniature Liquid Flow-Regulating Insert — Lee Reference
A non-adjustable flow-regulating valve insert for direct-to-chip liquid cooling. The product photograph shows the compact cartridge; separate diagrams illustrate fitting, hose and…
- Regulated flow range
- 0.2–4 L/min listed range; higher flows require separate manufacturer configuration
- Listed materials
- 303 stainless-steel body/cage; 302 stainless spring; CDA 360 brass poppet

LCP-000097
Pilot-Operated Two-Port Process Valve — SMC VNB Reference
A configurable two-port process valve for a selected fluid circuit. SMC's VNB series has air-operated and external-pilot solenoid forms, with body and…
- Port options
- Rc (PT) 1/8 to 2 across listed configurations
- Seal options
- NBR, FKM or EPR listed by configuration

LCP-000107
Sanitary-Clamp Interlock Valve Half — BEEHE FND Reference
A single FND valve half with a sanitary-clamp interface instead of a hose barb or pipe thread. The original blue-handle rendering is…
- End connection
- Sanitary-clamp end variants are listed separately for FND25 and FND40, with blue and red…
- Material seal
- FND series lists SUS304 body and EPDM seal; selected clamp seal and mating flange…

LCP-000109
Straight-Through Clamp-End Manual Ball Valve — AODSON Reference
A manually operated ball valve with two inline clamp-end connections and a long lever. The pictured assembly gives a clear valve-body and…
- Material options
- 304 and 316 stainless steel are listed as material references; body, ball, stem and…
- Connection reference
- Supplier examples pair diameter 12.7 with 25 mm clamp ferrule and diameter 19 with…

LCP-000026
Three-Piece Full-Bore Isolation Ball Valve — FITOK BG Reference
A distinctly pictured metal three-piece ball valve with a lever handle and controlled BG-series options for end forms, body material, seat and…
- Manufacturer max working pressure
- up to 69 bar
- Listed temperature range
- -28 to 232 degC

LCP-000032
Union-Bonnet Stainless Check Valve — FITOK CL Reference
A clearly pictured CL-series stainless union-bonnet check valve with a top-access bonnet and specific horizontal-orientation requirement, distinct from straight compact check valves.
- Manufacturer max working pressure
- up to 414 bar
- Listed temperature span
- -53 to 482 degC
Specify with confidence
The details that shape your selection.
Isolation, non-return or flow-control function Connection, bore, installation direction and actuation Coolant, wetted materials, pressure and temperature Operating or failure state and acceptance criteria Quantity, maintenance access and associated components
- Function and loop position
- Interfaces, drawing revisions and envelope
- Coolant, materials and seals
- Temperature, pressure and flow conditions
- Testing and documentation
- Quantities and delivery requirements
Overview
Liquid-cooling valve selection begins with the function: isolation, non-return or flow adjustment. These functions are not interchangeable and are reviewed against a defined position in the loop.
Configuration and selection
Specify connection, bore, flow direction, actuation, wetted materials and operating conditions. Confirm the required failure or shut-off behavior and the test method for the selected valve type.
Information to prepare
- Isolation, non-return or flow-control function
- Connection, bore, installation direction and actuation
- Coolant, wetted materials, pressure and temperature
- Operating or failure state and acceptance criteria
- Quantity, maintenance access and associated components
Configuration and quotation
Include the drawing or specification revision and identify any requirements that are still to be confirmed. Available configurations, testing and documentation are confirmed with quotation.
Documented reference configurations & supporting imagery
Local editorial preview
Documented configurations and product references
Manufacturer examples retain their model and conditions. These references describe source products, not approved stock or supply. Images are pending final selection and rights review.










Watts — family reference
| Parameter | Documented value / configuration |
|---|---|
| Function | isolation; backflow prevention; straining; air venting |

