Water Flow Switch (Metal Case)
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| Description |
The paddle type liquid flow switches are single-pole, double-throw (SPDT) switches that are used in liquid lines carrying water, ethylene glycol, or other liquids not classified as hazardous. They can be wired to energize one device and de-energize another device powered from the same source when liquid flow, either exceeds or drops below the set flow rate.
The flow switches are recommended for liquid pressure and temperature as mentioned below and must not be used on lines carrying liquids below 0°C. They can be used on liquids with high salt or chlorine content but is not for use in hazardous atmospheres.
The typical applications in HVAC include chillers, boilers, etc.
| Features |
∎ NEMA 3 or NEMA 3R Enclosure on Selected Models:
⋅ Allows use in indoor or outdoor applications.
∎ Stainless Steel Bellows on Selected Models:
⋅ Allow use in fluid lines carrying chlorinated water, treated water, or other nonhazardous fluids.
∎ Low-Flow Operation on Selected (Sensitive) Models:
⋅ Actuates switch with less than 1.0 GPM (3.8 L/min) flow for water applications or 9.0 GPM (34.1 L/min) flow for steam applications.
∎ Gold-Plated Contacts on MG Models:
⋅ Reduces intermittent contact problems in low-voltage and low-current circuits.
∎ Maximum Fluid Pressure of 150 psig (1034 kPa):
⋅ Permits use in a wide range of pressure flow conditions.
| Specifications |
| Product | Flow Switch | |||
| Maximum Liquid Pressure | 10 Bar (145psig) | |||
| Minimum Liquid Temperature | 0℃ (32℉) | |||
| Maximum Liquid Temperature | 121℃ (250℉) | |||
| Electrical Ratings | 120VAC | 208VAC | 240VAC | 277VAC |
| Horsepower | 1 | 1 | 1 | — |
| Full Load Amperes | 16.0 | 8.8 | 8.0 | — |
| Locked Rotor Amperes | 96.0 | 52.8 | 48.0 | — |
| Non-inductive Amperes | 16.0 | 16.0 | 16.0 | 16.0 |
| Operating Pressure | 10 Bar (145psig) | |||
| Withstand Pressure | 17.5Bar (254psig) | |||
| Insulation Resistance | Over 100 ohm, DC500VM | |||
| Withstand Voltage | AC1500V/1minute | |||
| Contact Point Life | 1000K Cycle | |||
| Bellows Life | 500K Cycle | |||
| Pilot Duty | 125VA at 24/277VAC | |||
| Wiring Connection | Screw Type Terminals | |||
| Pipe Connector | DN25(1”) BSP thread (NPT customizable) | |||
Conduit Connection One 7/8 in. (22mm) Hole for 1/2 in. Conduit with 1-3/32 in. (28mm) knockout Ring for 3/4 in. Conduit
| Detailed Images |
⇒ Choose quantity of paddles to have the suitable total paddle length for matching pipe size.
⇒ 4 paddle supplied as standard. 
| Video |
manual: Water Flow Switch - manual
SHIPPING
Delivery Options:
Delivery Method | Incoterms Term | Applicable Countries |
LCL, FCL by sea | EXW, FOB, CFR, CIF | General for all countries. |
Air courier to door | DDU, DDP | General for all countries. |
Air cargo to airport | CIF | General for all countries. |
Door to door by road | DDP | Cambodia, Laos, Myanmar, Thailand, Vietnam. (keep expanding to more countries) |
| Door to door by sea | DDU, DDP | Cambodia, Indonesia, Malaysia, New Zealand, Philippines, Singapore, Thailand, United Arab Emirates, United Kingdom, United States. (keep expanding to more countries) |
LCL=Less than Container Load. FCL =Full Container Load
DDU = Delivery Duty Unpaid DDP = Delivery Duty Paid
The above shipping information is general, and changing from time to time. Confirmation with us is necessary for each order.
PAYMENT
Payment Options:T/T (Telegraphic Transfer)L/C (Letter of Credit)Western UnionAlibaba Trade Assurance (Alipay)
