Van điều khiển nhiệt Gestra BW 31

Tên sản phẩmVan điều khiển nhiệt
ModelBW 31
HiệuGestra
Xuất xứĐức
Phân phốiĐại lý Gestra Việt Nam – VDIC
Xem chi tiết thông số kỹ thuậtCatalog van điều khiển nhiệt Gestra BW 31

Closing temperatures

Closing temperature ranges [°C]
DN 15 ½”DN 20 ¾” DN 25 1″ DN 40 1½”
BW 3120 – 13020 – 11520 – 110
BW 31 with external adjusting device60 – 13040 – 11550 – 110
BW 31 with special external adjusting device 220 – 11020 – 9020 – 75
BW 31A120 – 270100 – 280100 – 270
BW 31A with external adjusting device90 – 27070 – 270
BW 31A with special external adjusting device60 – 16030 – 17025 – 85

End connections

The equipment can be supplied with the following connections:

  • Flange EN 1092-1, B1, PN 40 (DN 15-25 mm (½–1″))
  • Flange EN 1092-1, B1, PN 25 (DN 40 mm (1½”))
  • Flange ASME B 16.5, Class 150 RF (DN 15-25, 40 mm (½-1″, 1½”))
  • Screwed socket G: ISO 228-1
  • Screwed socket NPT: ASME B 16.11

Materials

ComponentENASTM
Body1.046SA 105
Cover
Bolts in body1.7225A 193 B7
Thermovit regulatorStainless steel
Body gasketGraphite/CrNi
External adjusting device, BW 311.4404F 316 L
Sealing ring of external adjusting device, BW 31EPDM
Gasket of external adjusting device, BW 31 and BW 31ASt
External adjusting device, BW 31A1.4571
Stuffing box bush, BW 31AGraphite