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LPG/Air Mixers with Hallberg Venturi System - HVS-Series

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HVS LPG-Vapor / Air Mixers

Compact HVSS

All HVS Systems are designed to be used with an existing LPG vapor source, such as a vaporizer, or as the replacement for less efficient or less reliable LPG vapor/air mixing systems. They come complete with steel skid, vapor inlet header, Venturi trains, surge tank, controls, and all other equipment necessary for safe operation. The produced gas is directly compatible, and interchangeable, with NatGas.

Installations where the mixer system is separated from an open-flame vaporizer, and installations with electric vaporizers, require the option "Explosion Proof Control Components", which includes explosion proof transmitters and solenoid valves. A local start/stop station in an explosion-proof enclosure provides basic control over the mixer. The main control panel for these mixers, with PLC and operator interface, must be installed in a non-hazardous location.

All HVS Mixers are equipped with two solenoid valves per Venturi train. The dynamic solenoid valve opens and closes each time a Venturi train is activated to produce mixed gas. The static safety solenoid valves opens when the mixer is started and stays open until the mixer is stopped, or until a high-pressure alarm occurs. This feature provides an additional level of safety and prevents the unwanted discharge of mixed gas in case of a failure of the dynamic solenoid valve.

HVS mixers with PLC-based controls allow the adjustment of the sendout pressure and the sequencing of the Venturi lines (differential pressure between trains; ON-OFF deadband) through simple inputs at the operator interface. These versions also offer a Venturi Cycle Counter for each Venturi train. The counter increments each time a Venturi train is activated. This information can be used to determine when the mechanical components of a Venturi train should be closely inspected, overhauled, or replaced.

The required vapor supply pressure depends on the desired sendout pressure, on the type of available LPG (Propane/Butane content), and on other factors (i.e. altitude). Typical supply pressures for Propane and 5-8 psi sendout pressure are 50-70 psi. Sendout pressures of 9-15 psi require High Pressure Configuration. Mixed Gas Sendout Pressures of more than 15 psi require the High-Pressure "Air-Assist" option, which includes an ASME "U"-stamped surge tank.

Please Note: Venturi-based LP/Air mixers are generally considered for intermittent use. Due to the finite service life of their dynamically exercised mechanical components (regulators, check valves, solenoid valves, air intake valves, etc. are typically specified to withstand 500000 to 750000 cycles), they are not very well suited for baseload applications. Their main application is Emergency Backup.

Compact HVS: Models with one or two Venturi trains (HVS-7, HVS-10, HVS-14, HVS-20) come in Compact configuration standard (as shown at right). These models are specifically designed for air freight shipment (small footprint, reduced height, removable relief valve stack, Venturi trains parallel rather than perpendicular to tank, etc.).

 

Model Number

Nominal Capacity

Number
 of
Venturis

Nominal
Surge Tank Capacity

Approximate
Skid Size
L x W x H

Price
 5 to 8 psi
General
Purpose

Price
 5 to 8 psi
Ex-Proof
Class 1 Div 1

Price
 Air-Assisted
General
Purpose
Price
 Air-Assisted
Ex-Proof
Class 1 Div 1
  MMBTU
(MMKcal)
(Note 1) US-gal (m³) inches US-$ US-$ US-$ US-$
HVS -   7 7 (1.76) 1 120 (0.450)

68 x 36 x 68

$ 20,753

$ 24,756

$ 24,929

$ 28,932

HVS - 10 10 (2.52) 1 120 (0.450)

68 x 36 x 68

$ 22,961

$ 27,344

$ 28,268

$ 32,651

HVS - 14 14 (3.53) 2 120 (0.450)

68 x 36 x 68

$ 25,168

$ 29,931

$ 31,606

$ 36,369

HVS - 20 20 (5.04) 2 120 (0.450)

68 x 36 x 68

$ 33,484,

$ 38,247

$ 39,919

$ 44,683

HVS - 30 30 (7.56) 3 120 (0.450)

102 x 65 x 70

$ 44,216

$ 53,029

$ 53,208

$ 62,021

HVS - 40 40 (10.08) 4 120 (0.450)

102 x 65 x 70

$ 51,770

$ 61,339

$ 63,021

$ 72,590

HVS - 50 50 (12.6) 5 250 (0.950)

102 x 65 x 70

$ 63,234

$ 73,563

$ 76,486

$ 86,814

HVS - 60 60 (15.1) 6 250 (0.950)

102 x 65 x 70

$ 76,127

$ 84,729

$ 91,639

$ 100,242

HVS - 70 70 (17.6) 7 250 (0.950)

102 x 65 x 70

$ 84,638

$ 94,001

$ 102,409

$ 111,774

HVS - 80 80 (20.2) 8 500 (1.893)

128 x 65 x 80

$ 91,367

$ 101,491

$ 111,143

$ 121,268

HVS - 90 90 (22.7) 9 500 (1.893)

128 x 65 x 80

$ 102,857

$ 113,739

$ 125,182

$ 136,067

HVS - 100 100 (25.2) 10 500 (1.893)

128 x 65 x 80

$111,486

$ 123,128

$ 136,026

$147,718

HVS - 110 110 (27.7) 11 500 (1.893)

128 x 65 x 80

$ 120,413

$ 132,817

$ 147,262

$ 159,666

HVS - 120 120 (30.2) 12 500 (1.893)

128 x 65 x 80

$ 127,394

$ 140,556

$ 157,812

$ 170,974

HVS - 130

130 (32.7) 13 500 (1.893)

128 x 65 x 80

$ 135,446

$ 149,368

$ 168,125

$ 182,046

HVS - 140

140 (35.2) 14 1000 (3.785)

call factory

$ 143,422

$ 158,107

$ 178,362

$ 193,046

HVS - 150

150 (37.8) 15 1000 (3.785)

call factory

$ 151,051

$ 166,493

$ 188,250

$ 203,693

HVS - 160

160 (40.4) 16 1000 (3.785)

call factory

$ 157,788

$ 173,990

$ 196,985

$ 213,187

HVS - 170

170 (42.9) 17 1000 (3.785)

call factory

$ 165,695

$ 182,657

$ 207,156

$ 224,117

HVS - 180

180 (45.4) 18 1000 (3.785)

call factory

$ 180,234

$ 197,954

$ 223,954

$ 241,674

Please contact AES to discuss larger HVS units. Dimensions and weights are approximate. Specifications are subject to change.

Note 1: The actual number of Venturi arrangements per system depends on the specified mixed gas pressure.
Higher sendout pressures may have fewer Venturi arrangements,
and lower sendout pressures may have more Venturi arrangements than listed above.

 

 

Options

Options, Accessories, Spare Parts

Part Number

Description

Price in US-$

HVSOPTPLC

For Models HVS-7MM to HVS-20MM only: Electronic controls with Siemens S7-1200 or
Allen-Bradley MicroLogix-1400 PLC; includes Rosemount pressure transmitters and high-resolution (800 x 480) color LCD display with touch-screen operator interface. Includes Venturi Cycle Counter. Ethernet interface and remote access function included. Controls Enclosure to be installed in non-classified area.

$12,162

HVSOPTHP

High Pressure Configuration: for sendout pressures of 9-15 psi without the use of compressed air. Requires very high sendout pressures at the Venturi train (170+ psi) & low Butane content. Sendout pressures above 15 psi require "Air Assist" Configuration.

$5,279
per Venturi Train

 

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