Features & Benefits
Inline design
Inline flow allows high pressure drops without noise.
Adjustable set-point
Delivers desired differential pressure ensuring accurate balancing.
Technical Information
Application:
Heating and cooling systems.
Installation in supply pipe.
Functions:
Differential pressure control
Pre-setting Δp over the load (ΔpL)
Dimensions:
DN 15-125
Pressure class:
DN 15-50: PN 25
DN 65-125: PN 25 / PN 16
Max. differential pressure (ΔpV):
1600 kPa = 16 bar
Setting range:
Δp over the load is adjustable within:
5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
Delivery setting:
DN 15-50: Maximum value (30, 60, 100 resp. 150 kPa).
DN 65-125: Midway min./max. value (~18, ~35, ~55 resp. ~105 kPa).
Temperature:
Max. working temperature: 150°C
Min. working temperature: -10°C
Media:
Water or neutral fluids, water-glycol mixtures (0-57%).
Material:
Valve body: Ductile iron EN-GJS-400-15
Membranes and gaskets: EPDM
Adjustment ring: DN 15-50 Ryton PPS, DN 65-125 R St 37-2 steel.
Surface treatment:
Electrophoretic painting.
Marking:
IMI TA, Size, PN, Material, Kvs/Cvs, Δp and flow direction arrow.
Connection:
DN 15-50: External threads according to ISO 228. (Separate connections with NPT threads available.)
DN 65-125: Flanges according to ASME/ANSI B16.42 Class 150.
Articles
DN 15-50
External threads – Separate connections with NPT threads – see "Connections for DN 15-50".
External thread according to ISO 228.
Included: Capillary pipe (Ø6) 2 x 1 200 mm, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 2 capillary pipe connections R1/4 (R1/8 mounted on valve).
PN 25
DN | d | L | L1* | H1 | H2 | Kvs | Kg | EAN | Article No | |
5-30 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 52 | 4 | 1,5 | 3831112505476 | 52 763-120 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 57 | 12 | 2,6 | 3831112503953 | 52 763-125 | |
40/50 | G2 | 162 | 190 | 70 | 75 | 30 | 5,8 | 3831112504042 | 52 763-140 | |
10-60 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 52 | 4 | 1,5 | 3831112505377 | 52 761-120 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 57 | 12 | 2,6 | 3831112504134 | 52 761-125 | |
40/50 | G2 | 162 | 190 | 70 | 75 | 30 | 5,8 | 3831112504196 | 52 761-140 | |
10-100 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 52 | 4 | 1,5 | 3831112504189 | 52 760-120 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 57 | 12 | 2,6 | 3831112504004 | 52 760-125 | |
40/50 | G2 | 162 | 190 | 70 | 75 | 30 | 5,8 | 3831112504103 | 52 760-140 | |
60-150 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 52 | 4 | 1,5 | 3831112504233 | 52 762-120 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 57 | 12 | 2,6 | 3831112504141 | 52 762-125 | |
40/50 | G2 | 162 | 190 | 70 | 75 | 30 | 5,8 | 3831112504158 | 52 762-140 |
*) Length incl adjustment ring.
DN 65-125
Flanges – Do not need any separate connections.
Flanges according to ASME/ANSI B16.42 Class 150.
Included: Capillary pipe (Ø6) 2 x 1 500 mm and 2 capillary pipe connections R1/4 (M14x1 mounted on valve).
Class 150
DN | D | L | Kvs | Kg | EAN | Article No | |
5-30 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112529885 | 52 768-665 | |
80 | 210 | 160 | 60 | 18 | 3831112529922 | 52 768-680 | |
100 | 320 | 254 | 150 | 58 | 3831112529809 | 52 768-690 | |
125 | 320 | 254 | 150 | 58 | 3831112529847 | 52 768-691 | |
10-60 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112529878 | 52 768-765 | |
80 | 210 | 160 | 60 | 18 | 3831112529915 | 52 768-780 | |
100 | 320 | 254 | 150 | 58 | 3831112529793 | 52 768-790 | |
125 | 320 | 254 | 150 | 58 | 3831112529830 | 52 768-791 | |
10-100 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112529861 | 52 768-865 | |
80 | 210 | 160 | 60 | 18 | 3831112529908 | 52 768-880 | |
100 | 320 | 254 | 150 | 58 | 3831112529786 | 52 768-890 | |
125 | 320 | 254 | 150 | 58 | 3831112529823 | 52 768-891 | |
60-150 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112529892 | 52 768-965 | |
80 | 210 | 160 | 60 | 18 | 3831112529939 | 52 768-980 | |
100 | 320 | 254 | 150 | 58 | 3831112529816 | 52 768-990 | |
125 | 320 | 254 | 150 | 58 | 3831112529854 | 52 768-991 |
Kvs = m3/h at a pressure drop of 1 bar and fully open valve.
→ = Flow direction
Threads according to ANSI/ASME B1.20.1-1983.Swivelling nut
With internal thread NPT
Threads according to ANSI/ASME B1.20.1-1983.
Swivelling nut
d1 | d2 | L1* | EAN | Article No |
G1 1/4 | 1 NPT | 73 | 3831112533394 | 52 751-307 |
G1 1/4 | 1 1/4 NPT | 80 | 3831112533400 | 52 751-308 |
G2 | 1 1/2 NPT | 82 | 3831112533417 | 52 751-309 |
G2 | 2 NPT | 93 | 3831112533424 | 52 751-310 |
*) Fitting length (from the gasket surface to the end of the connection).
Other types of connections (ISO), see international version of DAF 516.
Suitable when insulation is used.Stainless steel/EPDM/Brass.
Venting extension
Suitable when insulation is used.
Stainless steel/EPDM/Brass.
d | D | L | EAN | Article No |
M6 | 12 | 70 | 3831112531727 | 52 759-220 |
Capillary pipe
Ø6 mm
2 pcs included in DAF 516.
L [m] | Ø | DN | EAN | Article No |
1,2 | 6 mm | 15-50 | 3831112527157 | 52 759-215 |
1,5 | 6 mm | 65-125 | 3831112527164 | 52 759-265 |
Brass/EPDM
Venting screw
Brass/EPDM
d | EAN | Article No |
M6 | 3831112527980 | 52 759-211 |
For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.
Capillary pipe connection
For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.
DN 15-50: 2 pcs R1/4 included in DAF 516 (2 pcs R1/8 mounted on valve).
DN 65-125: 2 pcs R1/4 included in DAF 516 (2 pcs M14x1 mounted on valve).
DN | EAN | Article No | |
6 x R1/4 | 15-125 | 3831112527355 | 52 759-201 |
6 x R1/8 | 15-32 | 3831112533868 | 52 759-213 |
6 x R1/8 | 40-50 | 3831112533875 | 52 759-218 |
6 x M14x1 | 65-125 | 3831112535145 | 52 759-214 |
Must be used on STAD when connection of Ø6 mm capillary pipe.
Connection set STAD
Must be used on STAD when connection of Ø6 mm capillary pipe.
2 transition nipples (G1/2 and G3/4), 1 thrust nut (Ø6), 1 cone (Ø6) and 1 support bush are included in DAF 516, DN 15-50.
d | EAN | Article No |
G1/2 | 7318793850003 | 52 762-006 |
G3/4 | 7318793850102 | 52 762-106 |
Capillary pipe connection with shut-off
For connection of Ø6 mm capillary pipe to STAF/STAF-SG.
d | D | For DN | EAN | Article No |
G1/4 | 6 | 20-50 | 7318793999504 | 52 265-209 |
G3/8 | 6 | 65-400 | 7318793999405 | 52 265-208 |