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, DN, PN, Material, Kvs, Δp and flow direction arrow.
Connection:
DN 15-50: External threads according to ISO 228.
DN 65-125: Flanges according to EN-1092-2, type 21. Face to face length according to EN 558 series 1.
Articles
DN 15-50
External threads – Separate connections optional.
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.
Kvs = m3/h at a pressure drop of 1 bar and fully open valve.
→ = Flow direction
DN 65-125
Flanges – Do not need any separate connections.
Flanges according to EN 1092-2, type 21.
Included: Capillary pipe (Ø6) 2 x 1 500 mm and 2 capillary pipe connections R1/4 (M14x1 mounted on valve).
PN 25 (DN 65-80 also fit PN 16 flanges)
DN | D | L | Kvs | Kg | EAN | Article No | |
5-30 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112502635 | 52 763-165 | |
80 | 210 | 160 | 60 | 18 | 3831112502819 | 52 763-180 | |
100 | 320 | 254 | 150 | 58 | 3831112502406 | 52 763-190 | |
125 | 320 | 254 | 150 | 58 | 3831112502444 | 52 763-191 | |
10-60 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112504493 | 52 761-165 | |
80 | 210 | 160 | 60 | 18 | 3831112504509 | 52 761-180 | |
100 | 320 | 254 | 150 | 58 | 3831112502390 | 52 761-190 | |
125 | 320 | 254 | 150 | 58 | 3831112502420 | 52 761-191 | |
10-100 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112504677 | 52 760-165 | |
80 | 210 | 160 | 60 | 18 | 3831112504684 | 52 760-180 | |
100 | 320 | 254 | 150 | 58 | 3831112502161 | 52 760-190 | |
125 | 320 | 254 | 150 | 58 | 3831112502413 | 52 760-191 | |
60-150 kPa | |||||||
65 | 210 | 160 | 60 | 18 | 3831112504516 | 52 762-165 | |
80 | 210 | 160 | 60 | 18 | 3831112504615 | 52 762-180 | |
100 | 320 | 254 | 150 | 58 | 3831112505681 | 52 762-190 | |
125 | 320 | 254 | 150 | 58 | 3831112505865 | 52 762-191 |
PN 16
DN | D | L | Kvs | Kg | EAN | Article No | |
5-30 kPa | |||||||
100 | 320 | 254 | 150 | 58 | 3831112502482 | 52 763-590 | |
125 | 320 | 254 | 150 | 58 | 3831112502536 | 52 763-591 | |
10-60 kPa | |||||||
100 | 320 | 254 | 150 | 58 | 3831112502468 | 52 761-590 | |
125 | 320 | 254 | 150 | 58 | 3831112502512 | 52 761-591 | |
10-100 kPa | |||||||
100 | 320 | 254 | 150 | 58 | 3831112502451 | 52 760-590 | |
125 | 320 | 254 | 150 | 58 | 3831112502505 | 52 760-591 | |
60-150 kPa | |||||||
100 | 320 | 254 | 150 | 58 | 3831112502499 | 52 762-590 | |
125 | 320 | 254 | 150 | 58 | 3831112502543 | 52 762-591 |
Kvs = m3/h at a pressure drop of 1 bar and fully open valve.
→ = Flow direction
Threads according to ISO 7. Swivelling nut.
With external thread
Threads according to ISO 7.
Swivelling nut.
d1 | d2 | L1* | EAN | Article No |
G1 | R1/2 | 34 | 3831112500983 | 52 759-115 |
G1 | R3/4 | 40 | 3831112500990 | 52 759-120 |
G1 1/4 | R1 | 40 | 3831112501003 | 52 759-125 |
G1 1/4 | R1 1/4 | 45 | 3831112501010 | 52 759-132 |
G2 | R1 1/2 | 45 | 3831112503342 | 52 759-140 |
G2 | R2 | 50 | 3831112503472 | 52 759-150 |
*) Fitting length (from the gasket surface to the end of the connection).
Attention! Can be used on the inlet side only.
With flange
Attention! Can be used on the inlet side only.
Flange according to EN-1092-2:1997, type 16.
d1 | d2 | D | L1* | EAN | Article No |
G1 | M12 | 95 | 10 | 3831112501065 | 52 759-515 |
G1 | M12 | 105 | 20 | 3831112501072 | 52 759-520 |
G1 1/4 | M12 | 115 | 5 | 3831112504318 | 52 759-525 |
G1 1/4 | M16 | 140 | 15 | 3831112501096 | 52 759-532 |
G2 | M16 | 150 | 5 | 3831112504325 | 52 759-540 |
G2 | M16 | 165 | 20 | 3831112501317 | 52 759-550 |
*) Fitting length (from the gasket surface to the end of the connection).
Attention! Must be used on the outlet side.
With flange (extended)
Attention! Must be used on the outlet side.
Flange according to EN-1092-2:1997, type 16.
d1 | d2 | D | L1* | EAN | Article No |
G1 | M12 | 95 | 47 | 3831112501157 | 52 759-615 |
G1 | M12 | 105 | 47 | 3831112500136 | 52 759-620 |
G1 1/4 | M12 | 115 | 62 | 3831112503533 | 52 759-625 |
G1 1/4 | M16 | 140 | 62 | 3831112526129 | 52 759-632 |
G2 | M16 | 150 | 72 | 3831112505025 | 52 759-640 |
G2 | M16 | 165 | 72 | 3831112503892 | 52 759-650 |
*) Fitting length (from the gasket surface to the end of the connection).
Swivelling nut
For welding
Swivelling nut
d1 | D | L1* | EAN | Article No |
G1 | 20,8 | 37 | 3831112500945 | 52 759-315 |
G1 | 26,3 | 42 | 3831112500952 | 52 759-320 |
G1 1/4 | 33,2 | 47 | 3831112500969 | 52 759-325 |
G1 1/4 | 40,9 | 47 | 3831112500976 | 52 759-332 |
G2 | 48,0 | 47 | 3831112501140 | 52 759-340 |
G2 | 60,0 | 52 | 3831112501294 | 52 759-350 |
*) Fitting length (from the gasket surface to the end of the connection).
Threads according to ISO 7-1. Swivelling nut.
With internal thread Rc
Threads according to ISO 7-1.
Swivelling nut.
d1 | d2 | L1* | EAN | Article No |
G1 | Rc1/2 | 26 | 3831112527454 | 52 751-301 |
G1 | Rc3/4 | 32 | 3831112527461 | 52 751-302 |
G1 1/4 | Rc1 | 47 | 3831112527478 | 52 751-303 |
G1 1/4 | Rc1 1/4 | 52 | 3831112527485 | 52 751-304 |
G2 | Rc1 1/2 | 52 | 3831112527492 | 52 751-305 |
G2 | Rc2 | 64,5 | 3831112527508 | 52 751-306 |
*) Fitting length (from the gasket surface to the end of the connection).
Threads according to ISO 228.
With internal thread
Threads according to ISO 228.
Swivelling nut.
d1 | d2 | L1* | EAN | Article No |
G1 | G1/2 | 26 | 3831112501027 | 52 759-015 |
G1 | G3/4 | 32 | 3831112501034 | 52 759-020 |
G1 1/4 | G1 | 47 | 3831112501041 | 52 759-025 |
G1 1/4 | G1 1/4 | 52 | 3831112501058 | 52 759-032 |
G2 | G1 1/2 | 52 | 3831112503489 | 52 759-040 |
G2 | G2 | 64,5 | 3831112503205 | 52 759-050 |
*) Fitting length (from the gasket surface to the end of the connection).
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 |
Brass/EPDM
Venting screw
Brass/EPDM
d | EAN | Article No |
M6 | 3831112527980 | 52 759-211 |
Suitable when insulation is used.Stainless steel/EPDM/Brass.
Venting extension
Suitable when insulation is used.
Stainless steel/EPDM/Brass.
d | ØD | L | EAN | Article No |
M6 | 12 | 70 | 3831112531727 | 52 759-220 |
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
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 |
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 |