Description
eClass-No.: | 37012290 |
Application: | Industrial heating and ventilation systems, residential applications, marked-warehouses, ship building, cooling systems, etc. |
Medium: | Fluids, air and steam |
Features
• Self-operating (no auxilary power required)
• Reliable, low maintenance operation
• Over-temperature safety device
• Valves pressure balanced with stainless steel bellows
• 3 thermal controller sizes for optimal selection of proportional range
• Thermal sensors with different time constants
• Exact and easy adjustment
• Setting range is adjustable
• Sensor pocket
• Manual control device
Technical data
Thermal-closing valve – straight through with flanges

Fig. …771 max. 150°C

Fig. …772 with cooling spacer max. 300°C
Figure | Nominal pressure | Material | Nominal diameter |
12.771 / 12.772 | PN16 | EN-JL1040 | DN15-100 |
22.771 / 22.772 | PN16 | EN-JS1049 | DN15-100 |
23.771 / 23.772 | PN25 | EN-JS1049 | DN15-100 |
35.771 / 35.772 | PN40 | 1.0619+N | DN15-100 |
55.771 / 55.772 | PN40 | 1.4408 | DN15-100 |
Construction LC without balanced bellow
Figure | Nominal pressure | Material | Nominal diameter |
12.771….1..1 12.772….1..1 |
PN16 | EN-JL1040 | DN15-50 |

Fig. 12.771….1..1 max. 130°C

Fig. 12.772….1..1 with cooling spacer max. 250°C
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
Face-to-face dimension FTF series 1 according to DIN EN 558 | ||||||||||
L | (mm) | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 |
Dimensions Standard-flange dimensions refer to page 15 | |||||||||||
Fig. 771 | H | (mm) | 160 | 160 | 195 | 195 | 215 | 255 | 260 | 320 | 340 |
Fig. 772 | H | (mm) | 305 | 305 | 340 | 340 | 360 | 400 | 405 | 455 | 485 |
Fig. 771…1..1 (LC) | H | (mm) | 125 | 125 | 125 | 125 | 130 | 135 | — | — | — |
Fig. 772…1..1 (LC) | H | (mm) | 270 | 270 | 270 | 270 | 275 | 280 | — | — | — |
Weights | ||||||||||
Fig. 771 | (kg) | 3,4 | 4,2 | 5,3 | 6,9 | 8,8 | 12,4 | 23 | 29 | 38 |
Fig. 772 | (kg) | 4,3 | 5,1 | 6,3 | 7,9 | 9,7 | 13,3 | 24 | 30 | 39 |
Fig. 771…1..1 (LC) | (kg) | 2,5 | 3,5 | 5 | 6 | 8 | 10 | — | — | — |
Fig. 772…1..1 (LC) | (kg) | 3,5 | 4,5 | 6 | 7 | 9 | 11 | — | — | — |
Kvs-value | |||||||||||
Standard | Kvs-value | (m3/h) | 4,0 | 6,3 | 10,0 | 16,0 | 22,0 | 32,0 | 50,0 | 70,0 | 80,0 |
Travel | (mm) | 7,5 | 7,5 | 8 | 9,5 | 9,5 | 11,5 | 14 | 15 | 15 |
Reduced | Kvs-value | (m3/h) | 0,4 | 1,0 | — | — | — | — | — | — | — | — |
Travel | (mm) | 5 | 5 | — | — | — | — | — | — | — | — |
Leakage rate | IV acc. to DIN EN 1349 or DIN EN 60534-4 (≤ 0,01% from the nominal flow) |
Max. differential pressure drop Δp | |||||||||||
Fig. 771 | Straight through | (bar) | 16 | 16 | 16 | 16 | 12 | 9 | 9 | 9 | 9 |
Fig. 772 | (bar) | 16 | 16 | 16 | 16 | 12 | 9 | 9 | 9 | 9 | |
Fig. 771…1..1 (LC) | Straight through | (bar) | 9,3 | 9,3 | 5,6 | 4,1 | 2,3 | 1,5 | — | — | — |
Fig. 772…1..1 (LC) | (bar) | 9,3 | 9,3 | 5,6 | 4,1 | 2,3 | 1,5 | — | — | — | |
Pressure balancing of the actuator needed at P1 > max. differential pressure drop Δp (out of table). For pressure balancing use manual control device (Type 9900390011). |
Parts | ||||||
Pos. | Sp.p. | Description | Fig. 12.771 Fig. 12.772 | Fig. 22./23.771 Fig. 22./23.772 | Fig. 35.771 Fig. 35.772 | Fig. 55.771 Fig. 55.772 |
1 | Body | EN-JL1040, EN-GJL-250 | EN-JS1049,
EN-GJS-400-18U-LT |
GP240GH+N, 1.0619+N | GX5CrNiMo19-11-2, 1.4408 | |
2 | Seat | X6CrNiTi18-10, 1.4541 | ||||
3 | Cheese head screw | A2-70 | ||||
5 | Giude bushing | X6CrNiTi18-10, 1.4541 | ||||
7 | x | Gasket | Graphite | |||
11 | Bonnet | EN-JS1049, EN-GJS-400-18U-LT | GX5CrNiMo19-11-2, 1.4408 | |||
14 | x | Spindle unit | X6CrNiTi18-10, 1.4541 | |||
19 | Bearing cover | X6CrNiTi18-10, 1.4541 | ||||
21 | Hexagon nut | A2-70 | ||||
28 | Cooling spacer | EN-JS1049, EN-GJS-400-18U-LT | X6CrNiTi18-10, 1.4541 | |||
37 | x | Compression spring | X12CrNi17-7, 1.4310 | |||
55 | x | Balanced bellow | X6CrNiTi18-10, 1.4541 | |||
└ Spare parts |
Information / restriction of technical rules need to be observed!
Operating and installation instructions can be downloaded at www.ari-armaturen.com. ARI-Valves of EN-JL1040 are not allowed to be operated in systems acc. to TRD 110.
A production permission acc. to TRB 801 No. 45 is available (acc. to TRB 801 No. 45 EN-JL1040 is not allowed.) The engineer, designing a system or a plant, is responsible for the selection of the correct valve.
Resistance and fitness must be verified (contact manufacturer for information, refer to Product overview and Resistance list).
ARI-TEMPTROL® 771/772
Thermal-closing valve – straight through with flanges without cooling spacer (max. 150°C)
PHONE: 0812-3340-4116WHATSAPP: 0812-3340-4116
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