The Cast Iron DIN Bellow Seal Globe Valve is a high-safety industrial valve designed for zero stem leakage. Adhering to European DIN standards, it replaces traditional gland packing with a flexible stainless steel bellows welded to the stem, creating a hermetic seal.
Key Features:
Zero Leakage: Ideal for steam, thermal oil, and hazardous fluids.
Double Seal: Uses a bellows as the primary seal and graphite packing as a backup.
Durability: Cast iron (GG25/GGG40) body with stainless steel trim.
Specs: Typically PN16/25 rating; temperatures up to 300°C
Technical Attributes
1,Size Range,DN15 to DN400 (Standard: DN15–DN200)
2,Pressure Rating,"PN16, PN25 (Standard DIN ratings)"
3,Body Material,Cast Iron (EN-GJL-250 / GG25) or Ductile Iron (EN-GJS-400 / GGG40)
4,Bonnet Material,Same as body (GG25/GGG40) or Cast Steel (1.0619)
5,Bellows Material,"Stainless Steel (SS304, SS316, or SS316Ti)"
6,Stem Material,Stainless Steel (X20Cr13 / 1.4021)
7,Disc/Plug Material,Stainless Steel (X20Cr13 / 1.4021)
8,Seat Surface,Hard-faced Stainless Steel or Stellite
9,Secondary Seal,Flexible Graphite Gland Packing
10,Operating Temp.,−10∘C to +300∘C (GG25) / up to +350∘C (GGG40)
11,Face-to-Face,DIN EN 558-1 Series 1 (formerly DIN 3202 F1)
12,Flange Design,EN 1092-2 (Raised Face)
13,Design Standard,DIN 3356 / EN 13709
14,Testing Standard,EN 12266-1 (Leakage Rate A - Zero Leakage)
15,Flow Direction,Unidirectional (as indicated by the body arrow)
16,Operation Type,"Handwheel (standard), Gearbox, or Actuator"
17,Stem Type,Non-rising handwheel / Rising stem
18,Mediums,"Steam, Thermal Oil, Hot Water, Non-corrosive Gases"
19,Safety Feature,Anti-turn device (prevents bellows torsion)
20,Body Coating,Epoxy Painting (Standard Grey or Blue)
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
