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T-Flow 75 End Cap with Cable: Technical Installation Datasheet
Quick Answer: The T-Flow 75 end cap with cable is a pre-wired, IP67 sealed housing for insertion thermal mass flow meters and other insertion probes. It ships with a 5-meter shielded cable, suits pipe sizes from DN25 to DN100, and works with sensors measuring gas or liquid temperature and flow. Use this datasheet to confirm wiring, mounting depth, and material compatibility before you install the unit on site.
Product Overview
Silver Automation Instruments supplies the T-Flow 75 end cap as a spare or upgrade part for its T-Flow series insertion flow meters. The assembly includes a 304 stainless steel cap, a compression fitting for probe mounting, and a pre-attached 4-core shielded cable. Engineers in water treatment, chemical dosing, and compressed air monitoring often keep a spare unit on hand because the end cap seals the sensor housing against dust, washdown water, and humidity. In tropical climates like Indonesia or Panama, a single corroded end cap can bring a flow measurement loop offline in less than three months. The stainless design solves that problem without requiring a purge system.
Technical Specifications
Enclosure material: 304 stainless steel, 316L optional
Cable length: 5 m standard (10 m and 15 m factory options)
Cable type: 4-core, PTFE insulated, braided shield, outer jacket silicone-free PVC
Conductor cross section: 0.34 mm2 per core
Temperature rating: -20 to +120 degrees Celsius
Protection class: IP67 when the gland is torqued correctly
Cable gland: M20 x 1.5, nickel-plated brass (stainless steel gland optional)
Probe insertion diameter: fits 12 mm sensor shaft
Weight: 0.6 kg
Compatible flow transmitters: Silver T-Flow 75 electronics, also any 4-20 mA HART transmitter that accepts Pt100 and active sensor signals
Max working pressure at compression fitting: 16 bar (40 bar with reinforced fitting on request)
Wiring Diagram and Pinout
The T-Flow 75 cable uses color-coded cores. Red carries sensor excitation voltage, typically 24 V DC. Black is the sensor signal ground. White connects to the Pt100 temperature sensor positive terminal. Green is Pt100 negative. The shield drain wire must land on the earth terminal inside the transmitter enclosure. Do not connect the shield at the sensor end. In Modbus RS485 optional versions, the cable includes a fifth twisted pair core. Always refer to the wiring insert inside the transmitter housing. Mismatching the Pt100 polarity creates a fixed 3 to 5 degree Celsius offset that is easy to miss during commissioning but ruins custody transfer accuracy.
Installation Notes
Before you wire the end cap, verify the cable gland is tight. Loose glands let moisture creep in, a failure we see regularly on service calls from palm oil mills in Malaysia and Thailand. After you set the insertion depth, torque the compression nut to 35 Nm with a calibrated wrench. The end cap is not a junction box, so transition to a local transmitter or remote unit within 10 meters to avoid signal drop. Keep the bend radius larger than eight times the cable diameter. In a fermentation plant in Vietnam, ignoring this rule caused micro-cracks in the jacket after six months of temperature cycling. For outdoor installations, add a weather hood or orient the gland downward to let condensation drain.
Mounting and Compression Fitting
The end cap comes with a 1.5 inch NPT or BSP compression fitting. Measure the insertion length as pipe inner diameter minus 12 mm. For a 2 inch schedule 40 pi
Environmental Durability
UV radiation and salt spray are the two biggest enemies of field enclosures. The 304 stainless cap resists rust, but pitting can occur if installed within 500 meters of a shoreline without regular fresh water washdown. In a fertilizer plant in Indonesia, our team recommended a silicone boot over the cable gland to block ammonia vapor. That simple step extended the replacement interval from six months to over two years. For offshore platforms or chemical terminals, specify the 316L end cap option and FEP cable jacket. Silver Automation Instruments can supply the assembly with an Ex e increased safety terminal box for ATEX Zone 1 or IECEx gas groups.
Typical Applications
We see the T-Flow 75 end cap in biogas flow measurement in Thailand, compressed air audits in Brazilian auto plants, and seawater cooling loops in the Middle East. A desalination plant in Oman recently ordered 12 units after the original polymer caps cracked under direct sun. The stainless steel cap solved the problem in one replacement cycle and eliminated half-yearly cap changeouts. In food and beverage, the same end cap works on clean steam lines provided the temperature stays within 120 degrees Celsius and the cable jacket is washed with low-pressure water only.
Ordering Information and Next Steps
When you request a quote, send us your pipe size (DN), fluid type, temperature in degrees Celsius, flow range, and required cable length. That helps us confirm the correct compression fitting, probe depth, and material option. If the installation is in a hazardous zone, also specify the ATEX or IECEx certification you need. Contact Silver Automation Instruments today. Email [email protected], call +86-135-1213-1526, or reach us on Whatsapp 86-135-12131526 and WeChat +86 13512131526. Ask for the T-Flow 75 end cap with cable PDF datasheet if you need a printable copy or 3D outline drawing.
Frequently Asked Questions
Can I use the T-Flow 75 end cap with a probe from another manufacturer?
Yes, if the probe shaft is 12 mm diameter and the sensor wiring matches the 4-core arrangement. Double-check the pinout of your existing sensor before you order.
Is the standard cable oil resistant?
The PVC jacket handles light oil splashes. For aggressive hydrocarbon exposure, we offer a FEP jacketed cable. Mention the fluid composition during inquiry.
Do I need to order the cable gland separately?
No, the M20 gland comes pre-assembled on the end cap. Spare glands are available as separate stock items.
How do I extend the cable in the field?
Use an IP65 junction box and reconnect cores via terminals. Keep total loop resistance below 50 ohm. Silver Automation Instruments can supply a pre-wired extension cable with mating connectors to reduce installation time.
What is the lead time for 316L or ATEX versions?
Standard 304 stainless parts ship within 5 working days. 316L or Ex e versions usually ship in 2 to 3 weeks, depending on the certification paperwork. Contact our team with your deadline and we will confirm a firm date.