www.kimray.com

TEMPERATURE CONTROLLERS

OPERATION: These Thermostat Base Assemblies consist of a STAINLESS TUBE for monitoring the changing temperature, which is con-nected by a Low Expansion Alloy Rod to a DIAPHRAGM or BELLOWS ASSEMBLY. The differential pressure across the Diaphragm or Bellows combined with changes in the length of the STAINLESS TUBE throttle a PILOT PLUG seat. The PILOT PLUG consists of two stainless balls rigidly connected together. The seat at BALL 1 is the Supply Pressure inlet (Violet to Yellow). The seat at BALL 2 is the pressure vent (Yellow to Atmosphere). Assume the set temperature of the Thermostat is above that of the system. The vent at BALL 2 is closed and the inlet at BALL 1 is open.

● Indirect: Output Pressure (Yellow) is being sent to any Pilot or Motor Valve. As the temperature rises in the system, the STAINLESS TUBE increases in length to move the Thermostat Diaphragm (or Bellows) Assembly in a direction to first close the seat at BALL 1 (Violet to Yellow) and open the seat at BALL 2 (Yellow to Atmosphere). Output Pressure (Yellow) decreases to cause the desired Pilot or Motor Valve action. As the temperature increases, the action is reversed to decrease Output Pressure (Yellow).

● Direct: Output Pressure (Yellow) is vented away so that no signal is being sent to the Pilot or Motor Valve. As the temperature rises in the system, the STAINLESS TUBE increases in length to move the Thermostat Diaphragm Assembly in a direction to first close the seat at BALL 1 (Yellow to Atmosphere) and open the seat at BALL 2 (Violet to Yellow).Out-put Pressure (Yellow) increases and acts on the DIAPHRAGM accounts for the semi-throttle action of the Thermostat. Output Pressure (Yellow) increases to cause the desired Pilot or Motor Valve action. As the temperature decreases, the action is reversed to decrease Output Pressure (Yellow).

APPLICATIONS: Used to control a set temperature in indirect heaters, emul-sion treaters, reboilers, steam generators, heat exchangers, cooler shutter controls, and salt bath heaters.

CERTIFICATIONS: Canadian Registration Number (CRN): 0H08105.2Kimray is an ISO 9001- certified manufacturer

ACTION: Indirect: Pilot Output Pressure (Yellow) decreases with tem-perature rise. Direct: Pilot Output Pressure (Yellow) increases with tem-perature rise.

WORKING PRESSURE (sensing element): psig kg/cm2 500 35.15 max. without Separable Socket 4000 281.23 max. with Separable Socket

Separable Socket is an extra price item and must be ordered separately, if desired. To order Separable Sockets refer to Table of Contents

TEMPERATURE RANGE: -30°F minimum to 400°F maximum -34°C minimum to 204°C maximum

SUPPLY PRESSURE: 5 to 30 psig .35 to 2.11 kg/cm2

RESPONSE RANGE: T 12 - 1.75 psig/°F, .22 kg/cm2/°C

H:10.1Issued 10/19

Current Revision:Correct Operation

LOW TEMPERATURE BASE ASSEMBLIES

Low Expansion Alloy

Stainless Tube

1/2” NPT

Diaphragm Assembly

Control Knob

Thermostat Diaphragm Assembly

Supply Pressure

Output Pressure

Vent

2 1

Low Expansion Alloy

Stainless Tube

1/2” NPT

Diaphragm Assembly

Control Knob

Thermostat Diaphragm Assembly

Supply Pressure

Output Pressure

Vent

2 1

INDIRECT ACTION

DIRECT ACTION

All Pictures shown are for illustration purpose only. Actual product may vary due to product enhancement.

www.kimray.com

TEMPERATURE CONTROLLERS

H:10.2Issued 2/18

Current Revision:Remove brass Ell and change rubber to HSN

Kimray is an ISO 9001- certified manufacturer.

LOW TEMPERATURE BASE ASSEMBLIESDUCTILE IRON

DIMENSIONS

THERMOSTATS AVAILABLE: NOTES:

CAT. BASE MAX. TEMP. MAX. TEMP. REPAIRNO. ASSEMBLY °F °C KIT

HAA T 12 400 204 RXX

*These are recommended spare parts and are stocked as repair kits.

Separable Sockets are available at extra cost, refer to Table of Contents for ordering.

57mm2 1/4"Ø

102mm4"

293mm11 5/8"

9mm3/8"Ø

1/2" NPT

1 2 3 4 5 6 7 8

910111213141516

4

4 *

**

*

**

*

*

*

ITEM QTY. DESCRIPTION PART NO.

1 1 POINTER KNOB 600SS6

2 1 DIAL 1743

3 1 VENT PLUG 147

4 3 O RING 265HSN

5 1 SEAT 565

6 1 SPRING 108

7 1 DIAPHRAGM 601HSN

8 1 BASE 1627

9 1 LOWER DIAPHRAGM PLATE 763

10 1 UPPER DIAPHRAGM PLATE 597

11 1 HOUSING 595

12 4 SCREW 693

13 1 PILOT PLUG 112

14 1 BONNET 2728

15 1 SEAT 1621

16 1 SET SCREW 264

*

*

*

*

*

*

*

www.kimray.com

TEMPERATURE CONTROLLERS

H:100.1Issued 2/18

Current Revision:Remove 4 & 18 options

Kimray is an ISO 9001- certified manufacturer.

SEPARABLE SOCKETSSTEEL & 316 SS STEEL

Separable Socket

Thermostat

SOCKETS AVAILABLE: NOTES:

CAT. MALE THD. MODEL MAX W.P. MAX W.P.NO. SIZE,NPT NUMBER MATERIAL psig kg/cm2

HCB 1" SS-6 STL 4,000 281.23HCC 1" SS-12 STL 4,000 281.23HCE 1" SS-12SS SS6 4,000 281.23HCH 3/4" 3/4SS-12 STL 4,000 281.23HCJ 3/4" 3/4SS-12SS SS6 4,000 281.23HCM 3/4" 3/4SS-6 STL 4,000 281.23HCMSS6 3/4" 3/4SS-6SS SS6 4,000 281.23HCN 1" SS-6SS SS6 4,000 281.23

APPLICATION: Increases working pressure of Thermostat Sensing Element. All Separable Sockets are filled with high temperature grease. Allows Thermostat removal without losing vessel pressure.

aOne piece construction

www.kimray.com

TEMPERATURE CONTROLLERS

H:IIssued 4/20

Current Revision:Update ratings

SEALS

Table 1 - Seal Options Temperature ControllersPart Standard Material Optional Material

O-rings HSN FKM

Diaphragm HSN FKM

Diaphragm

O Ring

O RingO Ring

Diaphragm

O Ring

O RingO Ring

Diaphragm

Diaphragm

O Ring

O RingO Ring

Diaphragm

Diaphragm

O Ring

O RingO Ring

Diaphragm

Diaphragm

Diaphragm

Table 2 - Seal Specifications

NITRILEHIGHLY

SATURATED NITRILE

FKM AFLAS® POLY- URETHANE GYLON

Kimray Suffix - HSN V AF P GY

Res

ista

nce

Abrasion G G-E G G E EAcid F G-E G-E E P E

Chemical F F E E F ECold G G P P G E

Flame P P E E P PHeat G E E E F EOil G-E E E E G E

Ozone P G G-E E E ESet G G G-E P F PTear F F F P G-E E

Water/Steam F E P G P EWeather F G E E E E

CO2 F-G G G G G EH2S P F P E G E

Methanol F E P P P E

Prop

ertie

s

Dynamic G G G G E PElectrical F F F G-E F E

Impermeability G G G G G ETensile Strength G G-E G F G-E E

Temp. Range (°F) -20° to +225°F -20° to +250°F -15° to +400°F +15° to +450°F -40° to +180°F -450° to +500°FTemp. Range (°C) -29° to +107°C -29° to +121°C -26° to +204°C -9° to +232°C -40° to +82°C -268° to +260°C

Form O,S,D O,S,D O,S,D O,S,D S,D S,D RATINGS: P-POOR, F-FAIR, G-GOOD, E-EXCELLENT

All Pictures shown are for illustration purpose only. Actual product may vary due to product enhancement.

www.kimray.com

TEMPERATURE CONTROLLERS

H:IIIssued 3/20

Current Revision:Remove chart

MATERIAL SPECIFICATION

Bonnet

BasePilot Plug

Probe

Gauge

Fittings

Relay Body Filter Body

Bonnet

BasePilot Plug

Probe

Bonnet

Base

Pilot Plug

Probe

Bonnet

BasePilot Plug

Probe

Fitting

Table 3 - Thermostat Materials of ConstructionPart Description Standard Material Optional Material(s)

Bonnet ASTM A-395Base C 12L14 CFSProbe 304 Stainless / Low Expansion Alloy

Pilot Plug 316 StainlessInterior Parts C 12L14 CFS

Table 4 - Pilot Guard Materials of ConstructionPart Description Standard Material Optional Material(s)

Bonnet ASTM A-395

Base C 12L14 CFS

Probe 304 Stainless / Low Expansion Alloy

Pilot Plug Silver Brazed 303 / 316 SS

Relay Body ASTM A-395

Filter Body C 12L14 CFS

Filter Screens 304 Stainless

Fittings Steel

Guage Brass Base and Bourdon Tube

Internal Parts C 12L14 CFS

All Pictures shown are for illustration purpose only. Actual product may vary due to product enhancement.