Switch Options

Sanitary
Flow Switches

Model NP-T — Available only in non-explosion proof housings. Designed for dairy, food processing, pharmaceutical, and cryogenic applications where contamination-free operation is critical.

Model NP-TTri-Clamp Connection321 SS BellowsElectropolish AvailableCIP / SIP Ready
Available on N Series (non-explosion proof) only — specify suffix -T when ordering
PEECO Sanitary Flow Switch Model NP-T with tri-clamp connection

Designed for Hygienic Processes

The PEECO Sanitary Flow Switch (Model NP-T) is engineered for industries where cleanliness, contamination prevention, and easy maintenance are non-negotiable. The sealed bellows design keeps process media completely isolated from the switch mechanism.

The tri-clamp connection allows the switch to be quickly removed from the line for cleaning or inspection — fully compatible with CIP (Clean-in-Place) and SIP (Sterilize-in-Place) procedures.

How It Works

Sealed bellows design — zero process media contact with switch internals

01
Flow Deflects Paddle
Process fluid flowing through the pipe deflects the stainless steel paddle, which is mounted on a precision pivot bearing inside the flow body.
02
Bellows Transmits Motion
The sealed seamless 321 SS bellows transmits paddle movement to the micro switch mechanism without any process media entering the switch housing.
03
Switch Actuates
The SPDT micro switch changes state — signaling flow presence or absence to your control system with a clean, reliable electrical output.

Key Features

Sealed Internal Cavity
Stainless steel external bellows assembly completely seals the internal cavity from process media — no contamination path.
Tri-Clamp Connection
Easily cleaned and/or removed from line with PEECO tri-clover or tri-clamp assembly — meets CIP/SIP requirements.
All Sizes Available
Available in all pipe sizes. Specify your line size when requesting a quote.
Electropolish Finish
Optional electropolish finish provides a microscopically smooth, hygienically clean surface where bacteria cannot accumulate.
Cryogenic Capable
Style EB used in all cryogenic applications — rated for extreme low-temperature service.
Contamination Free
Copper-free and cadmium-free brazed or welded assembly — compliant with food-grade and pharmaceutical standards.

Typical Applications

🥛
Dairy Processing
🍺
Food & Beverage
💊
Pharmaceutical
🔬
Biotech / Bioprocessing
❄️
Cryogenic Systems
🧴
Cosmetics Manufacturing
🍷
Brewery / Winery
♻️
Clean-in-Place (CIP)

Optional Electropolish Finish

Electropolishing micro and macro polishes the part, removing hydrogen from the surface and producing a hygienically clean, microscopically smooth surface where dirt or bacteria cannot accumulate. Specify -EP suffix when ordering.

Polishes and deburrs odd shaped parts
Prevents hydrogen embrittlement
Hygienically cleans surface
Super corrosion resistant
Provides stress relief
Passivates

Standard Materials of Construction

CoverHeat Treated Aluminum 356-T6
HousingHeat Treated Aluminum 356-T6
BodyStainless Steel
BellowsSeamless 321 Stainless Steel
Stem Paddle302, 303 Stainless Steel
Bearings440C Stainless Steel Micro Ball
Name PlatesAluminum
Micro Switch15A, 125-250-480 VAC SPDT 1/2A., 125VDC