Hansen HA4AB - User Manual

ADDITIONAL FEATURES
Tolerant of Dry Systems
For Ammonia, R22, R134a and other Hansen-
Approved Refrigerants
Wide Range of Options
Inlet, Outlet, or Differential Pressure
Wide Pressure Ranges
Electric Shut-Off, Dual, or Wide-Opening Available
Safe Working Pressure: 400 psig (28 bar g)
CSA Certified, CRN for Canada
Weld-In-Line Available; Contact Factory
INTRODUCTION
These advanced-design, strong-bodied, precision-
manufactured MODULAR regulators are superior in their
ability to overcome dirt and sticky oil during opening
and tight closing. Models are available for nearly every
control function requirement of industrial ammonia and
commercial halocarbon refrigeration. These regulators
are ideal for cold storage plants, poultry plants, meat
packing, fish processing, freezers, ice plants, breweries,
bottling plants, heat recovery units, petrochemical
plants, pharmaceutical plants, supermarkets, and many
others.
APPLICATIONS
Evaporator Pressure Control
Defrost Pressure Control
Condensing Pressure Regulation
Receiver Pressure Control
Hot Gas Bypass Capacity Regulation
Suction Pressure Control
Air or Liquid Temperature Regulation
Internal System Pressure Relief
V-PORT
MODULATION
IRON BODY
DUCTILE
DIRT WIPING
DISC-PISTON
MANUAL OPENING
STEM
RELIABLE
TEFLON SEAT
MODULAR PI
LOTS
HERE
SPRING
STAINLESS STEEL
DUCTILE
STRONG
GAUGE PORT
1/4'' NPT
KEY FEATURES
Contents Page
Regulator Variations 3
Capacities 4–5
Control Modules (Pilots) 6
Main Regulators Only (AR1, AR3) 7
Operation and Adjustment 8–11
Installation Dimensions 12–13
Parts List 14–18
Service and Maintenance, Abbreviations 19
Ordering Information, Conversions 20
Specifications, Applications,
Service Instructions & Parts
HA4A MODULAR
PRESSURE REGULATORS
¾" THROUGH 6" PORT
(20MM THROUGH 150MM)
Bulletin R429d
AUG 2015
Various Connection
Styles and Sizes
for Refrigerants
HA4AB Regulator with Electric Wide Opening

Hansen HA4AB Specifications

General

Brand	Hansen
Model	HA4AB
Category	Controller
Language	English

Summary

Technical Specifications and Installation

Installation and Electrical Considerations

Explains installation procedures and electrical requirements for the regulators.

HA4 A Regulator Variations

Control Module (Pilot) Functions

Main Regulator Bodies and Operation

AR1 and AR3 Regulator Configurations

Regulator Internal Operation Principles

Explains the internal operation of the regulators based on control module input.

Standard and Relief Regulator Operation

HA4 A Standard & HA4 AK Reseating Operation

Covers the operation and adjustment for HA4A Standard and HA4AK Reseating Relief regulators.

HA4 AL Differential Pressure Operation

Details the operation and adjustment procedures for the HA4AL Differential Pressure Regulator.

Specialized Regulator Operations

HA4 AO Outlet & HA4 AB Wide Opening

Describes the operation of HA4AO Outlet and HA4AB Electric Wide Opening regulators.

HA4 AS Shut-Off & HA4 AD Dual Pressure

Explains the operation for HA4AS Electric Shut-Off and HA4AD Dual Pressure regulators.

Advanced Control Regulator Operations

HA4 AP Pneumatic & HA4 AT Temperature

Details the operation of HA4AP Pneumatically Compensated and HA4AT Temperature Operated regulators.

HA4 AJ Electronic Control

Covers the operation of the HA4AJ Electronically Controlled Regulator.

Electric Motor Compensated Regulator

HA4 AM Operation and Adjustment

Installation Dimensions (3;4 to 4)

Dimension Tables and Charts

Installation Dimensions (5 & 6)

Dimensions for Larger Regulators

Service, Maintenance, and Safety

Troubleshooting and Disassembly

Guides on troubleshooting common failures and procedures for disassembly and reassembly.

Manual Opening and Abbreviations

Ordering, Accessories, and Warranty

Ordering, Accessories, and Conversions

Safety Cautions and Warranty