Matheson’s High-Flow SwitchPro^TM Automatic Switchover Systems are designed to provide a continuous high-flow supply of gas from a cylinder or a bank of cylinders. The HF Series is intended for applications where flow rates from 3 to 15 SCFM-nitrogen are required. The SwitchPro^TM System safely minimizes repetitive cylinder change out labor while offering a safe and efficient method of connecting multiple cylinders to a common gas supply line to provide centralized distribution of gas for both high and low purity delivery applications. Utilizing SwitchPro^TM Systems for the distribution of gas provides greater safety in the cylinder storage area by reducing repetitive cylinder handling and also minimizes the risk of ambient contamination within the gas delivery network.

Applications

• Provide a continuous, uninterrupted supply of gas
• Control gas delivery from cylinders within a centralized distribution system providing safer and more efficient delivery of gas with the flexibility to address customized applications.

Design Features

• Ideal for High (UHP 99.999%+) or Low Purity gas delivery.
• Available control features include: pressure regulation and indicating pressure switches.
• Provides automated switchover control and gas delivery for two cylinders.
• For flow rates of 3 to 15 scfm-nitrogen
• Compact design minimizes wall space consumption.
• Switchover regulator knob indicates cylinder (bank) priority.
• Relief valve upstream of line regulator acts like an interstage relief valve.
• Maximum inlet pressure up to 3000 psi.
• Design allows convenient access to all components.
• Cost effective to implement and install.
• Optional features allow customized system design for specific gas delivery applications.

Standard Configuration

• 200 psi +/- 25 psi switchover pressure
• 3 foot long flex hoses
• CGA connections with integral check valves
• 1/2” compression tube outlet connection

Options

• Hoses
The standard three foot long hoses work well with cylinders that can easily be secured close to the SwitchPro^TM System. Six foot long hoses are useful when hard to position cylinder bundles or dewars are the gas source.

• Valves
High Pressure Isolation (HPI) valves are useful when you want to isolate a single side for maintenance or cylinder changes. The HPI valve/High Pressure Vent (HPV) valve option enables the user to maintain optimum purity after cylinder changes.

• Indicating Pressure Switches (IPS)
Matheson Indicating Pressure Switches (IPS) are useful when remote monitoring of a gas supply is desired.  These IPS's (brass) can be used with a customer supplied alarm or the Matheson Pressure Monitor, Model PM-24.  The IPS contains a pressure scale similar to a traditional gauge for local indication, and a magnetically activated set of contacts for remote indication. The alarm point can be set from the front of the IPS.

• Pressure Monitor (PM-24)
The Matheson Pressure Monitor, Model PM-24, was designed as a method of monitoring a gas supply, when used in conjunction with Matheson Gas Delivery Systems with Indicating Pressure Switches (IPS).  The PM-24/IPS will indicate the status of both sides of the switchover: FULL – IN SERVICE, and DEPLETED. When a cylinder or cylinder bank is depleted, the green light will change to a red light, and the audible alarm will sound. The audible alarm can be silenced, leaving the red light indication. The red light will automatically reset to green when the depleted cylinder is replaced with a full cylinder.

• Gas Watcher - Bluetooth Pressure Gauge
The Gas Watcher^TM is a Bluetooth wireless device that can display gas operating pressure in "real time" locally on the device itself or remotely via connection to a web based portal. The operation and control settings for the Gas Watcher^TM are accessed through a set of two push buttons located on the face of the Gas Watcher^TM .

A Receiver/Router and an Annual Monitoring/Reporting Service (first year included with Receiver/Router) is required if the user wants to access the pressure remotely on a computer, tablet or smart phone.

	Accessories
	NFPA label Matheson’s adhesive backed die cut NFPA label is a perfect complement to our SwitchProTM Automatic Switchover System
	Cylinder Holders (710 Series) The 710 Series Cylinder Holder secures cylinders to a wall or to the side of a work bench. The holder body is 11 gauge hot rolled steel. Edges are protected with steel reinforced vinyl to help maintain your cylinders and provide extra grip. Strap burst pressure: 1200 lbs.
	Wall Mounting Kit This is mounting kit for a Switchover system. The kit includes two 18" long pieces of Aluminum U-channel and four sets of nuts and bolts to secure one panel to the U-channel. This kit does not include the hardware to mount the U-channel to a wall.
	Gas Watcher Receiver/Router The Gas Watcher™ Receiver/Router accepts Bluetooth input from up to 49 Gas Watcher™ Bluetooth Pressure Gauges and provides an information gateway to the internet. Information from the sensors is pushed up to an internet Cloud where the data is available in a proprietary password protected portal. Data can be viewed 24/7 anywhere an internet connection is available.  The user can set alarms to receive email or text alerts. The data viewed is Real-Time per the specifications of the sensors. Information from the Gas Watcher™ Bluetooth Pressure Gauges is data logged and time stamped. Data can be downloaded in a spreadsheet format. The Gas Watcher™ Receiver/Router is packaged in a NEMA 4 enclosure suitable for outdoor installation and is easy to install with its integrated mounting holes.

Materials of Construction

• Regulators: Stainless steel
• Regulator Diaphragms: 316L stainless steel
• Relief Valve: SS/FKM
• Gauges: 316 stainless steel
• Flex Hoses: Stainless steel
• Other Parts: Stainless steel

Specifications (Switchover)

• Panel Dimensions: 12” W x 14“ H
• Material (Regulators/Gauges/Fittings): Brass
• Material (Flex Hoses): Stainless Steel
• Switchover Cv: 1.0
• Flow Range: 3-15 SCFM - Nitrogen
• Maximum Inlet Pressure: 3000 psi
• Temperature Range: -15° F to 140° F (-26° C to 60° C)

Specifications (Indicating Pressure Switch)

• Power: 10 W maximum
• Current: 0.5 A maximum
• Contacts: Normally open (no pressure)

Specifications (PM-24)

• Two-channel annunciator with audio/visual alarm
• 120 VAC, 60 Hz power adapter with 15 VDC output
• Green (RUN) indicator lights for each channel
• Red (PRESSURE LOW) indicator lights for each channel to indicate low pressure or empty
• Audible alarm and alarm silence button
• Contact for outputs – left and right channel, or can be wired in series for common output
• Dust-proof enclosure
• Wall mounting brackets attached

Instructions

Instructions, Switchover

Drawings

Drawing, High-Flow Switchover, 2 cyl, std

Drawing, High-Flow Switchover, 2 cyl, HPI

Drawing, High-Flow Switchover, 2 cyl, HPI HPV

3D Model

High-Flow Switchover, 2 cyl, std

High-Flow Switchover, 2 cyl, HPI

High-Flow Switchover, 2 cyl, HPI HPV