Page 309 - Praxair - Specialty Gases and Equipment Reference Guide

Gas Delivery Systems

Valve Manifold Box (VMB) and Distribution Valve Box (DVB)

Valve Manifold Box
Valve Manifold Boxes (VMB) are designed to safely
split a single Hazardous or Non-Hazardous gas supply
into multiple use points. This concept increases efficiency
in the manufacturing or research area by reducing the
required space necessary to supply multiple locations.
Distribution Valve Boxes (DVB) are designed with larger
components to supply high volumes of gas.

Standard Designs
n Manual – Functions are operator controlled for cost efficiency
n Semiautomatic – Provides a safety shutoff controlled by customer
selected inputs such as leak detection or low exhaust flow
n Automatic – Provides ultra safe operation by preventing valves
from opening incorrectly. Also allows for fully automatic purging
and gas on/off operation from the manufacturing tool

Panel Configurations
VMB's are available with modular outputs from 1-4 and 1-8 sticks.
This concept allows for cost efficient expansion as the customers
facility grows. When selecting a configuration first decide what the
total future amount of sticks will be and install either a 4 or 8 stick
enclosure. Then specify from 1-4 or 4-8 sticks.

Standard Features
n 11 Gauge steel construction with powder coat finish
n Self closing and locking door with access port
n Wall mount
n PLC controller (Semi-automatic and automatic models)
with color touch screen operator panel
n Color Touchscreen Operator Interface
n 4 level security prevents unauthorized access
n User configurable alarms

Typical Stick configuration
Section E – Gas Handling Equipment
n Dual isolation valves
n Regulator with gauge or transducer
n Excess Flow Switch
n Purge and vent valves
i
Optional Stick components
n Coaxial outlet with or without monitoring Please consult your local Praxair representative for a wide
n Weld port for ease of process line installation range of options when ordering. We’re here to help!

System Options
n Floor Mount Leg kit
n Leak Detection
n UV/IR Flame Detection

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