Product Description

The Classic series is available as a single or double head pump. Each pump is available as adjustable or fixed output, perfect for accurate and repeatable injection of chemicals or liquid additives. The adjustable models' outputs range from 5 to 100% by utilizing the external dial ring. The fixed output models are ideal for use with controllers or with Stenner's proportional feed systems comprised of a pump, PCM (Pump Control Module) and a pulse generating dry contact water meter.

Features

• Output- Min: 2.5 gpd to Max: 50 gpd
• Output adjustment from 5 - 100% in 2.5% increments
• Snap-fit components allow service without tools
• Self-priming up to 25 feet
• Does not lose prime or vapor lock
• Pump tubes accept a variety of chemicals
• Will pump against pressures of up to 100 psi

Specifications

• Output: 2.5 to 50 gpd
• Discharge Pressure: 0-25 psi
• Voltage: 220 / 60 Hz.
• Amp Draw: 0.9 - 220V
• Dimensions: 10.6 x 5.3 x 6.0 in.

How It Works

Stenner’s adjustable metering pump is built with three detachable components: the motor, feed rate control, and pump head. Outputs are dependent upon three factors: the rpm of the motor gears, the percentage setting on the feed rate control, and the size of the peristaltic pump tube. All Stenner metering pumps have a 3-point roller design in the pump head, which acts as a check valve to prevent back flow, siphoning, overdosing and loss of prime.

The motor shaft rotates at a fixed rpm which drives the adjustable feed rate control to intermittently engage the roller assembly within the pump head. The chemical solution in the pump tube is captured between the rollers as they rotate and compress the tube. As the rollers advance, the squeezed tube section regains its original form and generates a vacuum, creating the self-priming feature that delivers a constant flow unaffected by the outlet pressure.