---
product_id: 110056161
title: "Potter VSR-2, Vane-Type Waterflow Switch for 2-inch Steel Pipe, with Retard, SPDT Contacts"
brand: "potter"
price: "S$382"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/110056161-potter-vsr-2-vane-type-waterflow-switch-for-2-inch
store_origin: SG
region: Singapore
---

# Flow sensitivity 4-10 GPM Dual SPDT snap-action switches 450 PSI service pressure Potter VSR-2, Vane-Type Waterflow Switch for 2-inch Steel Pipe, with Retard, SPDT Contacts

**Brand:** potter
**Price:** S$382
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks with precision flow control!

## Quick Answers

- **What is this?** Potter VSR-2, Vane-Type Waterflow Switch for 2-inch Steel Pipe, with Retard, SPDT Contacts by potter
- **How much does it cost?** S$382 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/110056161-potter-vsr-2-vane-type-waterflow-switch-for-2-inch)

## Best For

- potter enthusiasts

## Why This Product

- Trusted potter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heavy-Duty Durability:** Steel housing with NEMA 4/IP54 rating for indoor/outdoor resilience
- • **Precision Flow Detection:** Triggers at 4-10 GPM ensuring reliable waterflow alerts
- • **Robust Dual Switch Design:** Two SPDT contacts for versatile, fail-safe signaling
- • **Tamper-Resistant Security:** Special key screws and optional cover tamper switch for peace of mind
- • **Adjustable Pneumatic Retard:** Customizable delay prevents false alarms from transient flows

## Overview

The Potter VSR-2 is a UL Listed vane-type waterflow switch designed for 2-inch steel pipes, featuring dual SPDT snap-action switches and an adjustable pneumatic retard to ensure accurate detection of water flow between 4-10 GPM. Built with a rugged die-cast steel housing rated NEMA 4/IP54, it withstands harsh environments while providing tamper-resistant security. Ideal for wet sprinkler systems, it supports service pressures up to 450 PSI and is approved for use on steel pipes sized 2" to 8".

## Description

The Model VSR is a vane type waterflow switch for use on wet sprinkler systems. It is UL Listed for use on a steel pipe schedules 5 through 40, sizes 2" - 6" and is UL Listed and FM Approved for use on steel pipe schedules 10 through 40, sizes 2" thru 8" (50 mm thru 200 mm). LPC approved sizes are 2" thru 8" (50 mm thru 200 mm). See Ordering Information chart._x000D__x000D_The VSR may also be used as a sectional waterflow detector on large systems. The VSR contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a flow of 10 GPM (38 LPM) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period._x000D__x000D_The VSR switches and retard device are enclosed in a general purpose, die-cast housing. The cover is held in place with two tamper resistant screws which require a special key for removal. A field installable cover tamper switch is available as an option which may be used to indicate unauthorized removal of the cover_x000D_Main Features_x000D__x000D_ Service Pressure: 450 PSI (31 BAR) - UL_x000D_ Flow Sensitivity Range for Signal: 4-10 GPM (15-38 LPM) - UL_x000D_ Maximum Surge: 18 FPS (5.5 m/s)_x000D_ Contact Ratings: Two sets of SPDT (Form C), 10.0 Amps at 125/250VAC, 2.0 Amps at 30VDC Resistive, 10 mAmps min. at 24VDC_x000D_ Conduit Entrances: Two knockouts provided for 1/2" conduit._x000D_ Individual switch compartments suitable for dissimilar voltages._x000D_ NEMA 4/IP54 Rated Enclosure suitable for indoor or outdoor use with factory installed gasket and die-cast housing when used with appropriate conduit fitting._x000D_ Non-corrosive sleeve factory installed in saddle._x000D_

## Features

- Potter Amseco VSR-2Vane Type Waterflow Alarm Switch with Retard, 2 Pipe Size

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | POTTER ELECTRIC |
| Part Number | PL-VSR2 |
| Item Weight | 1 pounds |
| Package Dimensions | 9.53 x 5.94 x 5.91 inches |
| Item model number | VSR-2 |
| Is Discontinued By Manufacturer | No |
| Color | Steel |
| Material | Steel |
| Item Package Quantity | 1 |
| Measurement System | inch |
| Switch Style | Flow Switch |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Steel
- **Brand:** POTTER
- **Manufacturer:** POTTER ELECTRIC
- **UPC:** 785192012818

## Images

![Potter VSR-2, Vane-Type Waterflow Switch for 2-inch Steel Pipe, with Retard, SPDT Contacts - Image 1](https://m.media-amazon.com/images/I/51dMRkCEemL.jpg)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-21*