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Endress+Hauser DK9CM-7 (DK9.CM) thermowell/protection tube for RTD/TC sensors. G1/2" PN40 male thread, 6mm bore, 100mm immersion, 316L SS, for iTHERM TS/TM assemblies.
Product Overview
The Endress+Hauser DK9CM-7 (also referenced as DK9.CM-7 in older catalogs) is a standard straight-barstock thermowell / protection tube designed for use with iTHERM TM/TT series temperature assemblies (DTT31, DTT35, TMT85, etc.). It features a G1/2" male process thread (PN 40), 6 mm inner bore to accept standard ∅6 mm or ∅8 mm sensor stems, and a typical 100 mm immersion (U) length. The wetted parts are 316L stainless steel (1.4404), providing corrosion resistance for general process applications.
Technical Specifications (Dimensional & Process)
Parameter
Specification
Model / Order Designation
DK9CM-7 (DK9.CM-7 — Straight Thermowell, CM dimension variant)
Product Type
Thermowell / Protection Tube (Straight Barstock)
Process Connection
G 1/2" Male Thread (ISO 228-1), PN 40
Stem Outer Diameter (Tip Ø)
Typically 12 mm or 15 mm (standard for DK9 series)
Inner Bore Diameter
∅ 6 mm (accepts sensor stems up to ∅6 mm; ∅8 mm stems need DK9 with 8.5 mm bore — verify)
Immersion Length (U)
100 mm (standard for "-7" suffix; other lengths available)
Lagging Extension (L)
0 mm (flush to thread face — check if lagging extension required: e.g., L=50 mm adds code digit)
Wetted Parts Material
1.4404 (316L) Stainless Steel (default for CM variant)
Max. Process Pressure
PN 40 (≈ 40 bar @ 20 °C, derated with temperature)
Accepts ∅6 mm mineral-insulated (MI) RTD or TC stems (standard iTHERM insert)
Head Mounting
Accepts Form B (DIN 43764 / EN 50446) terminal head via union nut
Standards / Approval
DIN 43772 (Dimension & Pressure Test), PED Cat. I (typically)
Weight (Approx.)
~0.25 kg
Key Features
Process Isolation: Protects the temperature sensor from direct contact with corrosive, abrasive, or high-pressure media, extending sensor life and allowing hot-swappable insert replacement.
Standardized Dimensions: Conforms to DIN 43772 dimensional standards — interchangeable with other manufacturers' thermowells of same thread/bore/size.
High Pressure Capability: Rated PN 40 (40 bar @ 20°C), suitable for process lines, reactor jackets, and utility headers.
Pre-Drilled for Standard Sensors: 6 mm bore matches the standard ∅6 mm MI sensor stem used in Endress+Hauser iTHERM temperature assemblies.
Applications
Process Piping: Temperature measurement in chemical, petrochemical, and food-process lines via a G1/2" tapped nozzle.
Storage Tanks: Immersion into tank walls or roof nozzles for product temperature monitoring.
Skid-Mounted Equipment: Heat exchanger, CIP return, or utility line temperature sensing.
Retrofit: Replacing worn thermowells in existing process nozzles without modifying the piping.
Note: The suffix "-7" in DK9CM-7 typically denotes U=100 mm immersion, L=0 mm lagging extension, G1/2" PN40 thread, 316L SS. For tapered (reduced-tip) thermowells or flanged connections, see DK9 variants with different dimension codes (e.g., DK9CF for flanged). Always confirm immersion length suits your pipe/tank geometry to avoid "too short" or "too long touching opposite wall" issues.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E...
