The TLV CT16 is a compact multi-purpose electro-pneumatic globe control valve equipped with a digital I/P positioner and a drain plug. Designed for steam, water, air, and other non-hazardous fluids, it features a highly efficient multi-spring actuator with a low overall height that facilitates compact installation. The self-adjusting positioner ensures tight shut-off and improves control during low flow via auto-tuning zero calibration.

Features

1. Pneumatic actuator with digital I/P positioner in a compact configuration.
2. Rolling actuator diaphragm ensures linearity over the operating stroke and maximizes life.
3. Self-adjusting positioner features zero calibration by auto-tuning, which ensures tight shut-off and improves control during low flow.
4. Positioner LCD allows simple operation with capacitive keys and displays valve travel and error codes.
5. Self-adjusting chevron packing minimizes seal leaks, stem wear and stiction/hysteresis problems.
6. Multi-spring actuator is highly efficient, and its low overall height facilitates compact installation.
7. CT16, DN 32 to DN 50 have a silencer for noise reduction.

WARNING

Do not use with toxic, flammable or otherwise hazardous fluids. Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges.

Specifications

Valve Section

Specification	Ductile Cast Iron (EN 5.3103)	Cast Stainless Steel (A351 Gr.CF8M)
Connection	Flanged PN25 DIN EN 1092-2	Flanged PN40 DIN EN 1092-2
Size (DN)	15, 20, 25, 32, 40, 50	15, 20, 25, 32, 40, 50
Max. Operating Pressure (PMO)	Up to 22 barg (varies by size)	Up to 32 barg (varies by size)
Max. Operating Temperature (TMO)	220 °C	220 °C
Leak Rate Class	Class IV / Metal sealing	Class IV / Metal sealing
Characteristic	Equal percentage	Equal percentage
Rangeability	50:1	50:1

Actuator / Positioner Section

Specification	Value
Fail-safe Position	Valve CLOSED (Air to Open)
Motive Medium	Oil-free air, filtered to 5 μm
Electrical Input Signal	4 to 20 mA
Load Impedance	Max. 6.3 V
Air Supply Pressure Range	3.7 to 6 barg
Ambient Temperature Range	-25 to +80 °C
Protection Class	IP 66
Intrinsically Safe Rating (optional)	ATEX II 2G Ex i a IIC T4

Configuration and Materials

No.	Description	Material
1	Valve Body	Ductile Cast Iron / Cast Stainless Steel
2	Valve Seat	Stainless Steel X8CrNiS18-9
3	Plug and Stem	Stainless Steel X8CrNiS18-9
4	Valve Bonnet Gasket	Graphite
5	Valve Bonnet	Carbon Steel A105 / Stainless Steel SUS316Ti
6	Flange	Carbon Steel A105
7	Stuffing Box V-ring Packing	Fluorine Resin PTFE with Carbon
8	Positioner Housing	Polyphthalamide PPA
9	Positioner Cover	Polycarbonate PC
10	Actuator Body	Aluminium GD-Al Si 12
11	Drain Plug	Carbon Steel
12	Silencer	Stainless Steel

Dimensions and Weight

DN	L (PN25/PN40)	Actuator Area (cm²)	H	H1	φD	Weight (kg)
15	130 mm	120	350 mm	292 mm	168 mm	8.6
20	150 mm	120	350 mm	292 mm	168 mm	9.1
25	160 mm	120	355 mm	292 mm	168 mm	10
32	180 mm	120	380 mm	297 mm	168 mm	15
40	200 mm	120	380 mm	297 mm	168 mm	16
50	230 mm	120	385 mm	297 mm	168 mm	17

(Weight is for DIN PN 25 in ductile cast iron)

Cv & Kvs Values

DN	15	20	25	32	40	50
Kvs (DIN)	4.0	6.3	10	16	25	35
Cv (UK)	3.9	6.1	9.7	15.5	24	34
Cv (US)	5.0	7.5	12	20	30	40
Seat Diameter (mm)	12	24	24	32	38	48

Characteristic Graph

Installation and Maintenance

Blowdown: Before installing the product, be sure to blow down all piping thoroughly. Blowdown is especially important for newly installed piping or after the system has been shut down for a long period of time.

Installation Angle: Install the product so that the arrow mark on the body points horizontally in the direction of flow, and it should be installed horizontally in the piping with the actuator at the top. Allowable inclination is 10 degrees in the fore-aft direction and 15 degrees in the plane perpendicular to the flow line.

Drainage Port Usage Example: The threaded condensate drainage port at the bottom of the body makes possible installation of a blow valve or steam/air trap. Because the condensate drainage port is located on the primary side of the product, condensate flowing in the primary side piping can quickly be eliminated, contributing to prevention of valve seat erosion and rapid start-up of the equipment.

Troubleshooting

Problem	Cause	Remedy
Valve Leakage	The pressure of the air supply to the actuator or positioner is too high	Adjust the pressure of the air supply for the positioner to match the pressure in the product specifications.
	The positioner's zero point is miscalibrated	Adjust the positioner's zero point.
	The inlet pressure for the control valve is too high	Decrease the inlet pressure to the maximum operating pressure (PMO) or less.
	The valve plug and valve seat are off-center	Reassemble the valve bonnet section correctly.
	There is a problem with the sealing surfaces of the valve plug and valve seat	Replace with a new valve plug & stem and valve seat.