Hansen Technologies Europe GmbH

Abel-Twiete 1

21514 Büchen

Schleswig-Holstein

Germany

Phone: +49(0)6898.1690-385

Fax: +49(0)6898.1690-388

www.hantech.com

Request contact / appointment

Hall 6 / 6-204

Products of Hansen Technologies Europe GmbH (5)

LOGO_MVP Multi-Valve Platform Valve Station

LOGO_PXVW/PXV Pulse Width Expansion Valves

Exhibitor Profile

Products (5)

Hansen Technologies is a global leader in designing and manufacturing components for large industrial and commercial refrigeration systems. Our success results from high-quality, innovative products, exceptional customer service, and unequaled expertise in the refrigeration industry.

In over twenty years of growth, Hansen's knowledgeable engineering staff has continued to develop original and essential products to meet the needs of our valued customers. Hansen Technologies became the true pioneer and idea generator for modern industrial refrigeration non-condensable gas (air) purging equipment with the development of the AUTO-PURGER ® AP08 in 1984. The company pioneered continuous level sensing when Hansen introduced Vari-Level ® probes to the refrigeration industry in 1988. Since then, Hansen continuous level controls have become an industry standard. Most recently, Hansen Technologies has introduced the Hansen Sealed Motor Valve which can be controlled by a 4-20mA signal. We are currently expanding into the CO2 refrigeration market.

More innovative products are on the horizon at Hansen Technologies. Get to know us and learn how our high standards, extensive product line, and capabilities will better assist you with your refrigeration needs.

Hansen is a subsidiary of Roper Industries (NYSE:ROP), a diversified industrial company that produces engineered products for global niche markets.

EZ-SRV Cartridge Relief Valve

Hansen EZ-SRV™ Cartridge Pressure-Relief Valves protect refrigeration pressure vessels and other refrigeration system components from excessive pressure. If an abnormally high pressure occurs, the cartridge pressure-relief valve will open to relieve the excess pressure, preventing potential damage to equipment and injury to personnel. EZ-SRV™ valves are built in strict conformance with both ASME Boiler and Pressure Vessel Code requirements and ISO 4126 - Safety Devices for Protection of Excessive Pressure.

Each valve bears the ASME code symbol of certification (UV) and CE mark. Valve capacities are rated by the National Board of Boiler and Pressure Vessel Inspectors (NB). Refrigeration pressure-relief valves are recommended for replacement at least every five years. However, if a relief valve has discharged, it must be replaced as soon as possible. Valve replacement with the Hansen EZ-SRV™ is fast and easy - saving significant time and expense compared to traditional relief valves. The revolutionary design allows for quick, easy replacement of the cartridge with no need to disconnect from the relief piping.

The Hansen EZ-Fitting is available with welded or threaded end connections and a ¼˝ NPT connection. An optional Hansen Gauge Valve can be installed with a tell-tale pressure gauge to indicate overpressure of a valve and whether pressure is present when servicing or troubleshooting system. The gauge valve can also be used to safely bleed-off residual ressure between a three-way manifold valve and the EZ-SRV™ valve.

Key Features – EZ-SRV

Revolutionary cartridge design allows for quick and easy replacement - no need to disconnect from piping
Significant time and cost savings compared to replacement of traditional relief valves
Capacities match existing Hansen H5600 "R" series relief valves
EZ-Fittings have a built in gauge port to facilitate safer and controlled servicing
Optional welded connections eliminate threaded joint leak potential
Low blowdown (15% or less) for gas service minimizes refrigerant loss
EZ-Adapter component for simple retrofit to existing Hansen relief valves
EZLQ Liquid Rated Relief Valve available

Applications

Hansen EZ-SRV™ cartridge pressure-relief valves are typically installed on pressure vessels to protect from overpressure and comply with the requirements of ANSI/ASHRAE Standard 15-2007 Safety Standard for Refrigeration Systems and European Pressure Equipment Directive (PED) requirements. Once installed, a properly selected Hansen Z-SRV™ cartridge pressure-relief valve will vent to atmosphere excessive overpressure and quickly reseat to minimize loss of refrigerant. Optional Hansen Rupture Disc Assemblies (RDAs) help indicate when a pressure-relief valve has discharged. Rupture discs remain open after bursting and if installed with a pressure gauge or switch (required by code), will rovide a visual or electronic indication of the occurrence.

For liquid relief, Hansen offers the EZLQ liquid relief valve, rated U.S. GPM. Typical applications include ASME vessels, oil coolers and other components that can be isolated by ontrol valves or manual shut-off valves.

Quick, easy repalcement

EZ-SRV™ valves offer the same reduced capacities as Hansen H5600 "R" series relief valves. The Hansen EZ-Adapter simplifies retrofitting of existing Hansen relief valves. The Z-Adapter provides the same centerline dimensions as the H5600 series relief valve installed with a 2˝ long nipple, thereby minimizing piping changes to discharge line connections.

HCK5D

MVP Multi-Valve Platform Valve Station

Introduction

Hansen Technologies introduces the Multi-Valve Platform (MVP). The MVP is a rugged, compact refrigerant control valve station. Ships pre-tested and assembled for quick and easy installation, requiring only two welds to complete most valve station applications. No disassembly is required. Hansen control valve functions include solenoid valve, all common Hansen pressure regulator functions (inlet, outlet, dual pressure) and sealed motor valve (1-1/2” and 2” port size). Can be confi gured using standard Hansen parts for most control functions.

Applications
The MVP valve is well suited for applications including pumped liquid feed to evaporators, liquid make-up to fl ooded and recirculator vessels, liquid injection for screw compressors, hot gas defrost to evaporators, and evaporator pressure control. Up to six separate functions are possible: stop valve, strainer, control valve (solenoid/pressure regulator/ motorized), check, hand expansion, and stop valve.

Advantages
Installed cost savings is a huge advantage of the MVP valve. Faster installation, less pipe cutting, welding assembly time, insulation, and freight equal reduced costs. In addition, the compact valve body saves installation space and valve group weight. MVP valve includes six pressure taps to measure pressure at the inlet and outlet to the valve, as well as a ¾” NPT side connection.

Technical specifications

Safe Working Pressure: 600 PSIG (40 bar)
Temperature Range: -60° to 240°F (-50º to 115ºC)
Materials:
- Body: Cast steel, ASTM A-352, grade LCB
- Bonnet: Ductile iron, ASTM A-536

Features

Suitable for all Hansen approved refrigerants including R717, R134a, R404, R507 and CO2
Parts and parts kits same as Hansen individual valves – saves on stocking spare parts and training
Four to six control functions in one
Pressure regulator function
Manual opening function standard on solenoid and pressure regulating valves
Full size 100 mesh strainer
All stop valve stems are in vertical up position
Optional sight glass liquid indicator
Simple, identifi able confi guration
Eliminates fl ange gasket leak potential

Port sizes
3/4˝—2˝ (20mm—50mm)

Connection styles

Socket Weld: 3/4˝—2˝ (20mm—50mm)
Butt Weld: 3/4˝—2-1/2˝ (20mm—65mm)
ODS: 7/8˝—2-5/8˝ (22mm—67mm)

PXVW/PXV Pulse Width Expansion Valves

Introduction

The Hansen PXV Pulse Width Expansion Valve is a pulse modulating liquid refrigerant expansion valve. The PXV uses a specially designed, highcycle, long life solenoid operator. A sophisticated controller uses a 4-20mA input signal to monitor the liquid fl ow to the system. Unlike traditional TXVs, the pulse design eliminates the need to maintain minimum pressure differential. Low and varying liquid feed pressures (head pressure) are compensated by the basic variable valve operation. Suitable for all Hansen approved refrigerants. The unique PXVW60 body has an integral 100 mesh (150 micron) strainer screen and features direct weld assembly, eliminating fl ange gasket leak potential. Valve and controller ideally suited for use with Hansen’s Vari-Level, Techni-Level™ VLT probes and HPT Pressure/Temperature sensor.

Capacity

The PXV is available for ammonia capacities up to 60 tons with adjustable capacity settings. The PXV models available for ammonia are 5 and 15 ton (nominal). The PXVW model for ammonia has an adjustable orifi ce from 5 to 60 tons (nominal).

Applications
PXV modulates the fl ow of liquid feed to an evaporator or chiller. For use wherever a thermal expansion valve (TXV) would be used. Also ideal for liquid make-up to small surge vessels above flooded heat exchangers to minimize fluctuations in liquid level and pressures, and for liquid injection for compressor cooling.

Features

PXVW, PXV5, PXV15 drop-in replacement valve for Sporlan DA series thermostatic expansion valve
PXV does not require minimum pressure drop to operate; low head pressure tolerant
PXVW60 with adjustable capacity settings from 15 to 60 tons
Simple, compact controller programmed for liquid level or DX superheat control
Operates with 115V, 220V, or 24V AC/24V DC coil.

Principles of operation

Through the use of pulse width modulation, the valve is cycled on and off to achieve a desired flow. During a cycle, the valve can be open anywhere from 0 to 6 seconds. The more “on” time required, the greater the fl ow through the valve. The correct amount of “on” time can be determined by monitoring superheat (see HPT Pressure/ Temperature Transducer Bulletin PT100). If actual superheat is greater than desired, the pulse width signal is increased to provide more valve “on” time. If actual superheat is less than desired, pulse width
signal is decreased to reduce valve “on” time. The same principal applies to level control where a 4-20mA signal from a VLT level sensor controls the level in a vessel.