Our heritage in nuclear qualified sensors and related accessories stretches back to 1968. Today we offer a comprehensive range of temperature and pressure sensors to support safe and effective, long term operation of nuclear plants.
Nuclear Qualified Temperature Sensors
IEE 323/344
The model N9001 series RTD is designed for use as a wide range thermowell mounted sensor in the primary coolant loop of PWR (Pressurized Water Reactor) nuclear generating facilities. The RTD is qualified per IEEE 323-1974/1983 and IEEE 344-1975/1987 for use in Class 1E harsh environments, but can also be used for non-safety applications.
The model N9004 fast time response RTD is designed to be installed in a compatibly designed thermowell for rapid detection of temperature changes in the Hot and Cold legs of the reactor coolant loops (RCS) of PWRs (pressurized water reactors). The N9004 RTD is currently installed in many operating PWR nuclear plants, with some of the original installations occurring in the early 1980’s. There is little drift of either calibration or time response associated with normal operating conditions. Thus, the RTD assembly has low maintenance costs. Also, due to unique design features, ALARA amounts are reduced during installation and removal, especially when a Quick Disconnect Connector (QDC) is used.
- Reactor coolant loops (RCS) hot and cold legs
- Reactor coolant pumps
- RCS wide range
- Feedwater systems
- RHR/SIS systems
The model N9339 flexible RTD is specifically designed and qualified for
use in CANDU powerplants for installation into a guide tube interfaced with a thermowell or thermal block. The RTD is qualified per IEEE 323-1974/1983 and IEEE 344-1975/1987 for use in Class 1E harsh environments but can also be used for non-safety applications.
- Feeder tube temperature monitoring for CANDU reactors
- Hydrogen recombiner temperature measurement
- Emergency diesel generator coolant temperature measurement
- Bearing temperature measurement
- Inlet and outlet service temperature measurement
The model N9356 Rigid RTD is specifically designed and qualified for use in CANDU power plants for installation into an adapter fitting interfaced with a thermowell or direct installation on a bracket. The RTD is qualified per IEEE 323-1974/1983 and IEEE 344-1975/1987 for use in Class 1E harsh environments, but can also be used for non-safety applications.
- Inlet & outlet service temperature measurement
- Hydrogen recombiner temperature measurement
- Emergency diesel generator coolant temperature
- Bearing temperature measurement
- Air temperature monitoring (non-thermowell mount)
- Direct replacement for obsolete Rosemount Model 104ACF
The model 612 spring-loaded RTD is designed for a wide range of nuclear applications. The sensor is intended to be installed in a thermowell or protection tube. The spring-loading action ensures proper contact with the tip of the thermowell or protection tube for optimal heat transfer. This sensor model is optimally configured for use with a terminal block and terminal block connection head. The RTD is qualified per IEEE 323-1974/1983 and IEEE 344-1975/1987 for use in Class 1E harsh environments.
- Wide range of nuclear applications
- Installed in thermowell or protection tube
- Spring-loaded for optimal heat transfer
- Qualified for use in Class 1E harsh environments
RCC-E/M
- KN201 K3 Qualified Explosion Proof ATEX RTD
- KN606 K1 qualified semi–Fast Response RTD
- KN612 K2 RTD STD Response Time
- KN615 K1 Qualified RTD STD Response Time
- KN616 1 Qualified RTD Semi Fast Time
- KN617 K1 Qualified RTD FTR EDF
- KN9004 K1 Qualified RTD fast time
- KN9014 K1 Fast Time Response RTD
- KN9017 K1 K2 Atmospheric RTD
- KN9355 K1 Fast Time Response Direct Immersion RTD
Nuclear Qualified Temperature Transmitters
The N7030 and N7040 analog temperature transmitter series are two-wire 4-20 mA DC current loop powered temperature transmitters. They are analog signal conditioning devices designed to accept standard RTD or thermocouple inputs and convert the input to a linearized 4-20 mA DC output signal that is proportional to the input. The transmitter is nominally powered from a 24 VDC supply but will accept any regulated DC supply such that the voltage measured at the transmitter’s terminals is between 14 and 48 VDC under all conditions.
- True analog transmitter
- Qualified per IEEE 323 Class 1E Mild Environment
- Qualified per IEEE 344 Class 1E Seismic
- Loop powered 14 to 48 VDC
- Analog ANSI-ISA, NAMUR 43
- EMC, NRC RG 1.180, CE
Nuclear Qualified Thermowells
- ASME Section III Division 1 Class 1 2 and 3 Appurtenances and Materials
- ASTM ASME Code Materials
- RCC-M Code Materials
Parts and Accessories
Connections heads
- Cast iron
- Aluminum non-seismic
- Stainless steel
- Stainless steel non-seismic
Nuclear temperature spare parts
- 0102-004-0034T Dow 3145 radiation resistant silicone sealant 3 oz tube shelf life 1 year
- 0102-004-0012T Dow 3145 radiation resistant silicone sealant 10.3 oz cartridge shelf life 1 year
- 0102-004-1003T Primer Dow 1204 13.5 oz Can shelf life 6 months
- 0104-002-0004T Conformal coating 4 oz can resin solution UN 1866 shelf life 1 year
- 0109-001-0110T PST 580 Loctite thread lubricant 500 cc tube shelf life 1 year
- 0109-001-0113T P1 thread sealant higher heat shelf life 2 years
- 0109-001-0115T Thread sealant Westinghouse past Grafoil GTS 4 oz tube
- 0109-001-0116 Super O-lube for O-rings 2 oz tube
- 0125-004-0001 Taper tip thermowell cleaning kit
- 0125-003-0024 N9034 Dummy RTD for kit and training
- 0125-003-0005 RTD Insertion Installation Tool
- 0125-003-0041 N9034 RTD Grinder Assembly Kit includes 5 tip grinder assemblies 0.255 0.256 0.257 0.258 0.259
- 0125-003-0023 N9034 RTD Insertion and Extraction tool
- 0125-003-0030 N9034 RTD Insertion and Extraction tool kit
- 0125-003-0004 RTD Removal Tool
- 0128-006-0004 Deburring tool 15 inches long for taper tip thermowell
- 0301-008-0001 Pin screw to attach chain to head 10 X half inch
- 0302-006-1024T Washer Split Lock 316 S.S. 7-8 inch
- 0303-002-0054T Hex Lock Nut 316 SS half inch NPSL 14
- 0307-001-0009T Terminal Spay Lug non-safety only
- 0307-004-0002T Crimp splice barrel for QDC 16-20 AWG
- 0308-004-0003T Single T-C terminal block ceramic body with brass connections
- 0308-004-0004T dual T-C terminal block ceramic with brass connections
- 0308-004-0006T 4 and 6 wire RTD round ceramic terminal block NPBR terminals
- 0308-004-0008T 8 wire RTD terminal block ceramic without base plate unassembled
- 0308-004-0009T 8 wire RTD terminal block ceramic complete assembly with base plate
- 0322-001-0002 Gasket flat ring neoprene
- 0322-001-0004 Gasket O-ring Buna N
- 0322-001-0016T Nordel O-ring inner seal for half inch Patel connector
- 0322-001-0021T Gasket flat ring Viton -0015T head
- 0322-001-0023T Gasket flat ring Viton GP head -0016T
- 0322-001-0070T Nordel O-ring for half inch Patel connector
- 0322-001-0098T Nordel O-ring for three quarter inch Patel connector
- 0323-004-0006T clamp metal loop quarter inch
- 0323-003-0021T Constant Torque Clamp SS 1 and five sixteenth - 2 and quarter inch
- 0323-003-0012T Worm drive clamp kit 25 each clamps 100 ft strap
- 0334-001-9015T hex nipple 90040334-004-0006 SS TW Plug
- 0334-201-0072T pipe nipple fitting
- 0334-201-0096T PN 316 SS SCH 160 0.450 INT. BORE
- 0334-400-0037T pipe union 316SS 150 machined from bar 9004
- 0342-002-0002 Cast iron GP connection head aluminum paint 0021T gasket
- 0342-002-0016T GP SS head cast to equivalent of 316 SS grade A-351
- GP SS head commercial grade
- 0342-002-0017T GP SS head 3 hubs RTD only A-351
- 0348-002-0001 chain SS 8.5 inches long
- 0400-006-0008T one-eighth Polyolefin Shrink Tubing Black
- 0400-006-9003T 3-64th inch Polyolefin Shrink Tubing white
- 0400-010-4024T Flex tubing, 316SS 3x8th inch ID corrugated
- 0401-060-0007T Nickel Coated Copper Wire 20 AWG 19-32nd 27 percent Ni Bare Stranded Twisted Concentric
- 0402-001-3005T 4 wire cable tin plated copper wire 20 AWG 19-32nds shielded polyolefin insulation 8 20
- 0402-001-3005T 4 conductor wire 20 19-32nds TPC shield polyol jacket 2R and 2W
- 0402-001-3006T 8 wire cable tin plated copper wire 20 AWG 19 by 32nds shielded polyolefin insulation 8 20
- 0402-001-3007T 8 conductor Rockbestos 8 20 aluminum ploy shield with drain wire
- 0407-016-0001T half inch QDC 8 pin with 30 ft of 8 wire cable and 10-inch leads
- 0407-016-0002T half-inch QDC 8 pin with 20 ft of 8 wire cable and 10-inch leads
- 0407-016-0003T half-inch QDC 8 pin pin half only
- 0407-016-0004T half-inch QDC 8 pin socket half includes O-ring
- 0407-016-0024T-SFS half-inch QDC 8 pin-socket bayonet WITH 25FT Pigtail Gen 3 QDC
- 0407-016-0027T Model N9280-U18 half QDC 8 pin socket side instrument side
- 0407-099-0021T half-inch QDC 8 pin assembly unassembled as received from EGS
- 0407-099-0102T 8N45S-21-85-712 K2 Mobile Plug
- 0407-099-0111T Generation 3 half-inch NPT QDC Socket Side Assembly 2 C-16 AWG 360 degrees Shielded Bayonet 2 Socket EGS 23066-136
- 0407-099-0150T EGS GEN 3 and half-inch Socket field side only 2 conductors 24 ft Rockbestos Without 360-degree shield
- 0447-002-0006 Bi metal thermometer BB5109E84
- 1000-300-0011 Nylon terminal block RTD 6 wire with nylon NP brass connector assembly
- 1000-301-0007T GP RTD cast iron head assembly
- 1000-301-0010T GP TC cast iron head assembly single TC
- 1000-301-0011T GP TC cast iron head assembly dual TC
- 1000-301-0014T GP TC SS light weight head assembly single TC
- 1000-301-0015T GP TC SS light weight head assembly dual TC
- 1000-301-0016T GP RTD SS light weight head assembly single RTD -0023T gasket
- 1000-302-0068T Ex: Welding 0334-001-9051T half-inch NPT Nipple and 0334-400-0037T Pipe Union fitting together
- 1000-301-0017T GP RTD SS 3 hub head assembly dual RTD -0023T gasket
- 1000-301-0034 GP RTD Aluminum head assembly 6 wire RTD half x three quarters
- 0334-300-0042T Electrical Conductor Seal Assembly ECSA
- 0334-400-0086T Pipe Union for Curtiss-Wright N9004 half-inch NPT Chrome Plated
- 0322-001-1008T PEEK Energized Seal with Elgiloy Spring for dynamic coaxial sealing
- 0900-100-0200 DTN Semi-Permanent Tag assembly 0338-004-1001 blank SS tag half-inch SS cable 0354-001-0001 two splices 0307-004-0005
- 0334-001-9051T half-inch NPT Nipple
- 0407-016-0024T Connector 8-Socket bayonet with 25FT pigtail Gen 3 QDC
- 0407-016-0058T Connector Quick Connect Pigtail 4 Wire