Page 716 - Plastic Process Equipment, Inc

RETRACTABLE MELT THERMOCOUPLES

TYPE J OR RTD MODELS

SPECIFICATIONS DEPTH ADJUSTMENT
Thermocouple: 22 Ga. “J” calibration with MgO insulation and The position of the measuring junction is controlled by adjusting
1/8” O.D. 304SS sheath standard. the setting of the knurled adjusting screw. Turning the screw
clockwise increases the immersion of the probe. The probe should
RTD Model: 2 wire .00385 curve, platinum sensor 100 OHMS @ be brought back to minimum immersion before melt cool-down.
0°C, ceramic insulation and 1/8” O.D. sheath standard.
Do not force the adjusting screw when resistance is felt. The
Probe: Exposed Junction adjusting screw has a positive stop to prevent accidental removal
(also available as grounded or ungrounded designs) from the hex nut.
Maximum Temperature Rating: 900°F
Body: Stainless Steel with 1/2”-20 UNF x 1-3/4” thread on 3”, 5”, STANDARD RETRACTABLE MELT ASSEMBLY
or 7” standard body length; 3/8” wrench flats.
(RM-4222-03, 05 or 07)
Immersion Range: 1/8” - 1” Replaceable Crushable
Hex Nut Lava Gland Seal
Pressure Rating: 15,000 psi #HMTC-S . . . . $7.35 ea.
Reference End Termination: Polarized male Plug rated at 475°F
Adjusting Mechanism: Adjusting Screw with positive stop to Follower
prevent accidental disengagement under full pressure operation. Body
Lava gland and follower for pressure seal inside standard or Adjusting Screw
graduated hex nut.
DIMENSIONAL ASSEMBLY REPLACEMENT ELEMENT
3/8” Wrench Flats (RE-4222-03, 05 or 07)
1/2”-20 UNF x 1-3/4”

Immersion
Approx 7” L
Range
REPLACEMENT STEEL
COMP.
L IMMERSION ELEMENT BLANK BOLT
MODEL DESCRIPTION ASSY PRICE PRICE
DIM. RANGE ONLY TO PLUG
PRICE
MODEL NO. HOLE
RM-4222-03 3" 1/8" to 1" TYPE J, IRON/CONSTANTAN 1/8" DIA. $116.90 RE-4222-03 $93.00 RM4222B3 $9.50
RM-4222-05 5" 1/8" to 1" TYPE J, IRON/CONSTANTAN 1/8" DIA. $139.80 RE-4222-05 $101.50 RM4222B5 $12.75
RM-4222-07 7" 1/8" to 1" TYPE J, IRON/CONSTANTAN 1/8" DIA. $162.85 RE-4222-07 $129.65 RM4222B7 $16.00
RTD-4222-03 3" 1/8" to 1" RTD, PLATINUM SENSOR 1/8" DIA. $179.25 RTD-RE03 $146.80 RM4222B3 $9.50
RTD-4222-05 5" 1/8" to 1" RTD, PLATINUM SENSOR 1/8" DIA. $199.65 RTD-RE05 $168.15 RM4222B5 $12.75
RTD-4222-07 7" 1/8" to 1" RTD, PLATINUM SENSOR 1/8" DIA. $219.00 RTD-RE07 $190.60 RM4222B7 $16.00
FOR POLARIZED EXTENSIONS SEE PREVIOUS PAGES

3/8” INSTALLATION INSTRUCTIONS
1/2”-20 UNF-2B
Minimum Thread 1. For operation under pressure, the hex nut must be tightened
Length 1” on the body at least hand tight to crush lava gland.
Max Length 1-1/2”
2. To insert or remove body, use 3/8” wrench flats -
DO NOT use hex nut or polarized plug
.421
33/64
.423 3. To replace thermocouple probe, turn hex nut counter-
clockwise and disengage from body. Remove probe from body.
.312
.314 Install new lava gland packed with replacement element. Insert
INSTALLATION new probe and tighten hex nut on body to crush lava gland.
MOUNTING (See standard assembly drawing).
DIMENSIONS .250 4. CAUTION: The hex nut is part of the probe assembly. DO NOT
45° +1° .258 attempt to remove the hex nut from the adjusting screw.
-0°
PLASTIC PROCESS EQUIPMENT, INC. www.ppe.com
e-mail: sales@ppe.com
E 8303 CORPORATE PARK DRIVE W 6385 MONTESSOURI STREET
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