Area of use

The manual balancing valve STVA(E) is optimized for use in heating- and cooling systems.
STVA (E) is a ANSI 125# flanged valve.

Description

STVA (E) are sized with nomogram, handwheel or online Applications on smartphones or on our webside.
STVA (E) shall be dimensioned with 50-80 % of maximum flow for the design flow.
Minumum recommended differential pressure is 2 kPa (0,29 psi)

 

Technical data

Pressure class
PN 16
Max temperature
120°C
Min temperature
-10°C
Max closing pressure
200 kPa
Min pressuredrop
2 kPa
Material
Cast iron:  DN 65-150, Electrolytic zinc plating
DN 200-300, Electrolytic zinc plating
Seals EPDM/NBR
Connections
ANSI 125# flanged

Preset

The hand wheel has digital reading which shows whole turns and tenth of a turn.
The setting is shown in table format or can be calculated by using software on the website.
Any setting can be locked to avoid tampering with the setting of the balacing valve.
On STVA (E) DN 65-150 an Allen key of 6 mm is used on the inner spindle to lock the setting.
On STVA (E) DN 200-300 the key is enclosed.
When the hand wheel is locked the valve cannot be opened to a larger value but it can be closed for maintenance of the connected circuit.

Media

NOTE! For the STV range, it is only suitable to use neutral fluids

Order designations

Article number Designation Description
2254001 STVA 65 Balancing valve ANSI 125# flanged without drain
2254101 STVA 80 Balancing valve ANSI 125# flanged without drain
2254201 STVA 100 Balancing valve ANSI 125# flanged without drain
2254301 STVA 125 Balancing valve ANSI 125# flanged without drain
2254401 STVA 150 Balancing valve ANSI 125# flanged without drain
2256401 STV EA 200 Balancing valve ANSI 125# flanged without drain
2256501 STV EA 250 Balancing valve ANSI 125# flanged without drain
2256601 STV EA 300 Balancing valve ANSI 125# flanged without drain

 

Insulation

9001318 IS 65 Insulation DN 65
9001319 IS 80 Insulation DN 80
9001320 IS 100 Insulation DN 100
9001321 IS 125 Insulation DN 125
9001322 IS 150 Insulation DN 150