The Retractex C is a manual or pneumatic retractable armature designed for applications in the chemical industry with process pressures up to 16 bar. It is made from a variety of steel and plastic wetted materials.
The compact design with a stroke of only 36 mm keeps wear on seals to a minimum and creates excellent reliability – day and night, all year long. It can be cleaned easily and thoroughly in place, including the space between the socket and rinsing chamber. It is designed for 225 mm long sensors with 12 mm shaft diameter and is equipped with several safety features (e.g. no sensor – no insertion, window to check seals for leakage etc.) to provide operator safety. It is available with various process connections and sealing materials.
|Wetted parts||Stainless Steel (1.4404 or 2.4602)
PVDF, PEEK, or PP;
EPDM, FKM or FFKM
|Pressure Range (bar g)||0 to 16 bar (< 120 °C), 10 bar (120 to 140 °C)|
|Operating Temperature Range||-10 – 140 °C|
|For Sensors with||12 mm; PG13,5; 225 mm|
|Surface Quality of Steel||Ra < 0.8 μm (N6)|
|ATEX approval (Steel)||
CE 0035 II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb
|IECEx (Steel)||CE 0035 II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb|
CE 0035 II 1/2 D Ex ia IIIC T x °C Da/Db
|ATEX approval (Plastic)||CE 0035 II 1/2 G Ex ia IIA T4/T5/T6 Ga/Gb (no dust)|
|IECEx (Plastic)||CE 0035 II 1/2 G Ex ia IIA T4/T5/T6 Ga/Gb (no dust)|
Sensor Cleaning with the Retractex C
Once retracted, the sensor can be cleaned while the process is running. Cleaning fluid is connected through external ports where either manual cleaning or automated cleaning with the RetractoControl can occur.
A PTFE scraper with o-ring built into the insertion tube guarantees that process build-up stays outside of the armature and does not harm the internal o-ring seals.
Specification Sheet - Retractex C Steel (Pneumatic)
Which retractable housing should I use?Hamilton makes three families of retractable housings. The Retractofit is our basic manually retractable housing. It is only available with G1-1/4" process connection and has no other options. The Retractex family offers both manual and pneumatic versions with a variety of materials and process connections that can be selected depending on the applications. Finally the RetractoMaster is specifically designed for use with the ChemoTrode refillable sensors.
Retractex - Manual Insertion and Seal Replacement
Understanding Wetted Materials (Stainless, Plastics, & Elastomers)Wetted materials such as stainless steel, plastics, and elastomers are often listed by different names and abbreviations in different parts of the world. This quick cross reference guide helps sort out the common names for wetted materials used in Hamilton sensors.
Understanding Surface FinishThis article explores the topic of surface finish on wetted components for Hamilton sensors, housings, and other products.
Understanding Sensor Holder O-ring Position (OP)Many holders and sensors rely on o-ring seals for proper installation. This article discusses o-ring position (OP) for G 1¼” (Ingold) connections.
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