HANSEN TECHNOLOGIES HOTV 1 Hansen Oil Temperature Valve Instruction Manual

HANSEN TECHNOLOGIES HOTV 1 Hansen Oil Temperature Valve

Product Usage Instructions

• Introduction
  • The Hansen Oil Temperature Valve is a 3-way mixing valve used to control the oil temperature of screw compressors or other oil-cooling circuits within design parameters.
  • The thermostatic element modulates to maintain a near-constant temperature at the outlet.
• Advantages
  • Suitable for mixing or diverting applications
  • Compatible with refrigerants, oils, and temperatures
• Key Features
  • Rugged, all-steel construction with weld ends
• Low-pressure drop
  • The thermostatic element is made of stainless steel with a plated sensing bulb
  • Suitable for oils operating with ammonia, R22, R134a, and other compatible refrigerants
• Installation
  • Remove the cover and element before welding the valve body in the line.
  • Mount the valve in any position, avoiding high points where gas pockets may form.
  • After welding, reassemble the valve, check for leaks, and ensure the Teflon sliding seal is intact.
• Service and Maintenance
  • Caution: Follow proper procedures for maintenance and service.
  • Warranty: Hansen valves are guaranteed for one year F.O.B. our plant. No consequential damages or field labor included.

FAQs

• Q: What are the key features of the Hansen Oil Temperature Valve?
  • A: The valve features rugged all-steel construction, a low-pressure drop, and a stainless steel thermostatic element suitable for various refrigerants.
• Q: How should I install the valve?
  • A: Remove the cover and element before welding the valve body in the line. Mount it in any position, avoiding high points in the system. Reassemble after welding and check for leaks.
• Q: What should I do for service and maintenance?
  • A: Follow proper procedures outlined in the manual for service and maintenance. Ensure not to remove the Teflon sliding seal during maintenance.

INTRODUCTION

• The Hansen Oil Temperature Valve is a 3-way mixing valve used to accurately control the oil temperature of screw compressors or other oil-cooling circuits within appropriate design parameters.
• The internal thermostatic element modulates to maintain a near-constant temperature at the outlet of the valve.
• As oil and refrigerant are circulated through the screw compressor, the oil is heated. The hot oil is fed to the valve and it is also fed to a heat exchanger, which provides cold oil to the opposite side of the valve.
• The thermostatic element modulates the flow of oil from the cold oil port and the hot oil port to maintain the nominal temperature setting at the outlet.

FLOW RATE VS. PRESSURE DROP Oil@140°F(60°C) Specific Gravity=0.85

ADVANTAGES

• Easy to service—the valve can stay inline
• The durable Teflon® sliding seal is compatible with most refrigerants, oils, and temperatures
• Suitable for mixing or diverting applications

KEY FEATURES

• Rugged, all-steel construction, welded ends

Low-pressure drop

• The thermostatic element is stainless steel with a plated

sensing bulb

• Suitable for oils operating with ammonia, R22, R134a,

MATERIAL SPECIFICATIONS

• Product: Hansen Oil Temperature Valve
• Sizes: 65 mm, 80 mm
• Applications: Oil-Cooling Circuits
• Safe Working Pressure: 400 psig (28 bar) standard, 600 psig (41 bar) available – contact
• Hansen Temperature Range: -60ºF to 240ºF (-51ºC to 115ºC) Body: 1˝, Steel, ASTM A36
• Body: 1½˝ –3˝, Cast steel, ASTM A352 LCB
• Cover: Steel, ASTM A36
• Sliding Seal: Composite Teflon®
• Cover Gasket: Non-asbestos, graphite composite
• Control Temperature Range ±10°F (±6°C) of nominal temperature

TYPICAL MIXING APPLICATION

CONFIGURATION SELECTION

• 1½˝ SW (40 mm) AND 2˝ SW OR BW (50 mm) Two models are available for the 1½” (40 mm) and 2″ (50 mm) sizes, HOTV and HOTW. The only difference is the position of the hot oil and cold oil inlets.

TOP VIEW HOTV

1˝ SW (25 mm), 2½˝ SW OR BW (65 mm) AND 3˝ BW (80 mm)

• The 1˝ (25mm), 2½˝ (65 mm), and 3˝ (80 mm) sizes only are available as HOTV models.
• The “T-body” style of these valves allows the reversal of inlets by simply turning the valve around.

FRONT VIEW HOTV

INSTALLATION

• Remove the cover and element before welding the valve body in the line. The valve can be mounted in any position.
• Avoid mounting a valve at the high point of the system where a gas pocket may form. After the valve is welded in the line, reassemble it and check for leaks before placing it in service.
• NOTE: Do not remove the Teflon sliding seal.

INSTALLATION DIMENSIONS, INCH (mm)

• 1½˝ SW (40 mm) AND 2˝ SW OR BW (50 mm)
• 1˝ SW (25mm), 2½˝ SW OR BW (65mm) AND 3˝ BW (80mm)

REPLACEMENT PARTS

• Do not remove the Teflon sliding seal.

SERVICE AND MAINTENANCE

• Before opening the valve for service, be sure it is isolated and pumped out to zero pressure. Loosen the cover bolts equally, break the gasket seal, and check for residual oil or refrigerant pressure.
• Then, remove the bolts. Remove and replace the thermostatic element if necessary.
• For ammonia service, carefully inspect the thermostatic sensing bulb for nicks or scratches. Plating damage will significantly reduce the life of the thermostatic element.
• Reinstall the retaining spring. Replace the cover gasket. Reinstall cover.
• For 1˝ (25mm), 1½˝ (40mm) and 2˝ (50mm) valves torque the cover bolts equally to 60 ft-lbs (80 Nm), and for 2½˝ (65mm) and 3˝(80mm) valves, torque the cover bolts equally to 125 ft-lbs (170 Nm). Check for leaks before returning the valve to service.

CAUTION

• These instructions and related safety precautions must be read completely and understood before selecting, using, or servicing these valves. Only knowledgeable, trained technicians should install, operate, or service these valves.
• Stated temperature and pressure limits should not be exceeded. Components should not be removed from a system unless it has been evacuated to zero pressure. See also Safety Precautions in the current List Price Schedule and the Safety
• Precautions sheet supplied with the product. Escaping fluids can cause injury, especially to the eyes and lungs.

WARRANTY

• Hansen valves are guaranteed for one year F.O.B. our plant. No consequential damages or field labor is included.

ORDERING INFORMATION

• To Order: Specify catalog number HOTV or optional HOTW for 1½˝ (40mm) or 2˝ (50mm), size, connection style (socket weld or butt weld), and temperature setting. A temperature setting of 120°F (49°C) is standard; See the temperature Selection Chart for other available temperatures.

TEMPERATURE SELECTION CHART

CAT NO| ****

SIZE

(mm)

| TEMPERATURE  RANGES
---|---|---
SOCKET WELD| BUTT WELD| A| B| D| E| F| G| H
HOT| –| 1˝ (25)|  | X| X|  |  | X| X
HOT| –| 1½˝ (40)| X| X| X| X| X| X| X
HOTV| HOTVB| 2˝ (50)| X| X| X| X| X| X| X
HOTV| HOTVB| 2½˝ (65)| X| X| X|  |  | X|
–| HOT| 3˝ (80)| X| X| X|  |  | X|
HOW| –| 1½˝ (40)| X| X| X| X| X| X| X
HOTW| –| 2˝ (50)| X| X| X| X| X| X| X

Consult the Factory for other temperatures.

PARTS LIST

THERMOSTATIC ELEMENT REPLACEMENT KIT (Consists of thermostatic element and 1 cover gasket)

RANGE| NOMINAL TEMPERATURE| PART NUMBER
1˝ (25)| 1½˝ (40) 2˝ (50)| 2½˝ (65) 3˝ (80)
H| 110°F (43°C)| 30-1120| 30-1118| –
E| 115°F (46°C)| –| OBSOLETE| –
**B*| 120°F (49°C)| 30-1112| 30-1104| 30-1109
A| 130°F (54°C)| –| 30-1103| 30-1106
D| 140°F (60°C)| 30-1113| 30-1105| 30-1119
F| 150°F (66°C)| –| 30-1117| –
G**| 170°F (77°C)| OBSOLETE| OBSOLETE| OBSOLETE
Cover Gasket| 30-0182| 50-0310| 30-0083

Standard (combining Range and Nominal Temp fields into one)

Specifications, Applications, Service Instructions & Parts

• HANSEN OIL TEMPERATURE VALVE 1˝, 1½˝, 2˝, 2½˝, 3˝ (25 mm, 40 mm, 50 mm, 65 mm, 80 mm)

CONTACT

• Hansen Technologies Corporation
• 681 Commerce Street
• Burr Ridge, Illinois 60527 USA
• Tel: 630.325.1565
• Fax: 630.325.1572
• Toll: 866.4HANSEN
• Email: sales@hantech.com
• Web: www.hantech.com
• USA ∙ Asia ∙ Europe ∙ India ∙ Latin America ∙ Middle East
• © 2019 Hansen Technologies Corporation

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