inlet 1/2", 3/4" or 1" - outlet 3/4" or 1" - seat orifice Ø6 mm or Ø8 mm - set pressure from 0,5 bar g. to 460 bar g.
![High pressure stainless steel safety valve – 776700 SERIES | Presentation](http://www.ireland-valves.com/wp-content/uploads/2011/10/776700-HP-72.jpg)
![High pressure stainless steel safety valve – 776700 SERIES | Dimensions](http://www.ireland-valves.com/wp-content/uploads/2012/01/776700-HP-dimensions-anglais-72.jpg)
![High pressure stainless steel safety valve – 776700 SERIES | Nomenclature](http://www.ireland-valves.com/wp-content/uploads/2012/01/776700-HP-nomenclature-721.jpg)
![High pressure stainless steel safety valve – 776700 SERIES | Codification](https://www.ireland-valves.com/wp-content/uploads/2012/03/776700-options-72-english.jpg)
Description
Stainless steel safety valve without lever, with screwed inlet and threaded outlet in its standard version. The tightness is ensured through a very neat lapping of the seat and plug. A wide range of springs enables an accurate pressure setting for this PED 97/23/CE Category IV Group 2 certified saftey valve.
Applications
Designed for use on all air components gases in its standard version, this safety valve offers a wide range of options which allows the handling of a large variety of fluids. This safety valves is extensively is extensively used in every kind of industrial projects: liquid storage tanks, air separation units, petrochemical plants, dangerous products transportation, ...
General features
- Stainless steel construction
- Safety valve's behaviour adjustable thanks to two blow-down rings
- The sturdy design, the high-quality of the selected materials and the high-performance components of this safety valve provide to it multi-purpose characteristics
- Inlet and outlet as per ISO R228 or ASME/ANSI B2-1
Alternatives
- Flanged inlet and outlet
- Butt welding fittings at inlet and/or outlet
- Cap with lever
- Gas-tight construction
- ... (see codification)
Dimensions in mm | Weight (W) in kg | ||||||
Inlet(G or NPT) | L | Outlet(G or NPT) | F | do | H | W | |
35 < Ps < 320 | 321 < Ps < 460 | ||||||
1/2" | 56,5 | 3/4" | 75 | 8 | 6 | 184 | 3,5 |
3/4" | 58,5 | 3/4" | 75 | 8 | 6 | 184 | 3,5 |
1" | 60,5 | 3/4" | 75 | 8 | 6 | 184 | 3,5 |
1/2" | 56,5 | 1" | 75 | 8 | 6 | 184 | 3,5 |
3/4" | 58,5 | 1" | 75 | 8 | 6 | 184 | 3,5 |
1" | 60,5 | 1" | 75 | 8 | 6 | 184 | 3,5 |
Ps: Set pressure (bar g.) | |||||||
For other gases (MW): multiply the air rated flow by sqrt[29/MW] For other temperatures (T): multiply the air rated flow by sqrt[273/(T+273)] - T in °C |
Standard materials | |||||
Rep | Designation | Standard materials | |||
1 | Cap | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 | |||||
1.1 | Gasket | PTFE | |||
2 | Stem | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 | |||||
3 | Adjusting screw | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 | |||||
4 | Spring plate | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 | |||||
5 | Spring | EN 10088-1 | |||
X10CrNi18-8 1.4310 | |||||
AISI 302 | |||||
6 | Lantern | EN 10272 | |||
X2CrNiMo17-12-2 1.4404 | |||||
A182 F316L | |||||
7.1 | Blow-down ring | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 | |||||
8 | Plug | EN 10088-3 | |||
X2CrNi18-9 1.4307 | |||||
A182 F304L + Stellite™ | |||||
11 | Shoulder seat | EN 10088-3 | |||
X2CrNi18-9 1.4307 | |||||
A182 F304L + Stellite™ | |||||
12 | Body | EN 10272 | |||
X2CrNi18-9 1.4306 | |||||
A182 F304L | |||||
17 | Guide | EN 10088-3 | |||
X8CrNiS18-9 1.4305 | |||||
AISI 303 |
7 | 7 | 6 | 7 | 0 | 0 | - | X | X | X | - | 00 | 00 | 00 | - | DN | .. | PN | .. |
---|
7 | 7 | 6 | 7 | 0 | 0 | - | X | X | X | - | 00 | 00 | 00 | - | DN | .. | PN | .. |
---|
Value | Inlet connection |
---|---|
2 | Screwed end |
3 | Flanges |
4 | Butt welding fitting |
7 | 7 | 6 | 7 | 0 | 0 | - | X | X | X | - | 00 | 00 | 00 | - | DN | .. | PN | .. |
---|
Value | Pressure rating |
---|---|
8 | PN320 |
9 | PN420 |
7 | 7 | 6 | 7 | 0 | 0 | - | X | X | X | - | 00 | 00 | 00 | - | DN | .. | PN | .. |
---|
Value | Option |
---|---|
E | ATEX CE Ex II 2G/D |
7 | 7 | 6 | 7 | 0 | 0 | - | X | X | X | - | 00 | 00 | 00 | - | DN | .. | PN | .. |
---|
Value | Option |
---|---|
80 | Spacer |
85 | Butt welding fitting at outlet |
86 | Collected outlet |
90 | Regular bonnet |
92 | Gas tight body and bonnet |
95 | Gas tight cap with lever |