Alternate Energy Systems, Inc.

LPG Vaporizers - LP/Air Blenders - Gas/Gas Blenders - NatGas Backup Systems - PeakShaving Systems


Price List
March 2016

LPG/Air Mixers
with Hallberg Venturi System
HVS-Series
 

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HVS LPG-Vapor / Air Mixers

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 arrangements, surge tank, electric/electronic controls, and all other equipment necessary for safe operation. The produced gas is directly compatible, and interchangeable, with NatGas.

All HVS systems monitor the gas pressure in the surge tank. Smaller systems up to two venturi arrangements use pressure switches and standard controls. Larger systems with three or more venturi arrangements use a pressure transmitter which is connected to a Siemens or Allen-Bradley PLC. The PLC "sequences" the venturi lines and controls all system safety functions. The PLC also communicates with a color LCD display with Touch Screen Operator Interface, indicating system pressures, and any trouble conditions that may occur. The PLC may also be used to "interlock" the HVS system with an external vaporizer.

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. The control panel for these mixers must be installed in a non-hazardous location. 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" 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 electronic controls (PLC) 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. Systems with higher sendout pressure of 9-12 psi require considerably higher vapor supply pressure, which can be difficult to maintain in very cold climates. Mixed Gas Sendout Pressures of more than 12 psi require the High Pressure 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 relatively limited useful life of their dynamically exercised mechanical components (regulators, check valves, solenoid valves, air intake valves, etc. are typically specified to withstand 200000 to 500000 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) are also available in "Compact" configuration. These models are specifically designed for air freight shipment (small footprint, reduced height, removable relief valve stack, etc.). There is no price adder for these models.
 

Model Number

Nominal Capacity

Number
 of
Venturis

Nominal
Surge Tank Capacity

Approximate
Skid Size
W x L 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)

54 x 54 x 83

$ 19,374

$ 23,111

$ 23,272

$ 27,009

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

54 x 54 x 83

$ 19,374

$ 23,111

$ 23,272

$ 27,009

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

54 x 54 x 83

$ 23,495

$ 27,942

$ 29,505

$ 33,951

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

54 x 54 x 83

$ 31,258

$ 35,705

$ 37,266

$ 41,713

HVS - 30 30 (7.56) 3 250 (0.950)

65 x 102 x 70

$ 41,277

$ 49,504

$ 49,672

$ 57,899

HVS - 40 40 (10.08) 4 250 (0.950)

65 x 102 x 70

$ 48,329 $ 57,262 $ 58,832 $ 67,765
HVS - 50 50 (12.6) 5 250 (0.950)

65 x 102 x 70

$ 55,384

$ 67,755

$ 67,755

$ 77,397

HVS - 60 60 (15.1) 6 500 (1.893)

65 x 128 x 80

$ 66,139 $ 74,169 $ 80,619 $ 88,651
HVS - 70 70 (17.6) 7 500 (1.893)

65 x 128 x 80

$ 73,191 $ 81,931 $ 89,781 $ 98,523
HVS - 80 80 (20.2) 8 500 (1.893)

65 x 128 x 80

$ 80,244 $ 89,695 $ 98,705 $ 108,157
HVS - 90 90 (22.7) 9 1000 (3.785)

65 x 199 x 84

$ 90,574

$ 100,733

$ 111,416

$ 121,577

HVS - 100 100 (25.2) 10 1000 (3.785)

65 x 199 x 84

$ 97,629

$ 108,497

$ 120,538

$131,452

HVS - 110 110 (27.7) 11 1000 (3.785)

65 x 199 x 84

$ 104,680

$ 116,259

$ 129,745

$ 141,323

HVS - 120 120 (30.2) 12 1000 (3.785)

call factory

$ 111,733

$ 124,019

$ 140,129

$ 152,416

HVS - 130 130 (32.7) 13 1000 (3.785) call factory $ 118,855 $ 131,852 $ 149,362 $ 162,358
HVS - 140 140 (35.2) 14 1000 (3.785) call factory $ 125,836 $ 139,545 $ 158,453 $ 172,161
HVS - 150 150 (37.8) 15 1000 (3.785) call factory $ 132,847 $ 147,262 $ 167,573 $ 181,989
HVS - 160 160 (40.4) 16 1000 (3.785) call factory $ 139,945 $ 155,070 $ 176,537 $ 191,662
HVS - 170 170 (42.9) 17 1000 (3.785) call factory $ 146,998 $ 162,832 $ 185,703 $ 201,537
HVS - 180 180 (45.4) 18 1000 (3.785) call factory $ 160,088 $ 176,631 $ 200,903 $ 217,445

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.

 $11,808

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.

 $4,882
per
Venturi Train

Last Update 30Jan16

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