Bronze safety valve – 770100 SERIES


inlet 3/8", 1/2" or 3/4" - outlet 1/2" or 3/4" - seat orifice Ø12 mm - set pressure up to 40 bar g.

Bronze safety valve – 770100 SERIES | Presentation
Bronze safety valve – 770100 SERIES | Dimensions
Bronze safety valve – 770100 SERIES | Nomenclature
Bronze safety valve – 770100 SERIES | Codification

Description

Bronze 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 a renewable soft composition disc made of PCTFE. 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

  • Bronze construction
  • Safety valve's behaviour adjustable thanks to a blow-down ring
  • 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

  • PTFE (Teflon™) or FPM 20471/70 (Viton™) soft plug insert
  • Metal/Metal sealing
  • Flanged inlet and outlet
  • Butt welding fittings at inlet and/or outlet
  • Internal trim made of nickel alloy (#Monel™)
  • Shoulder seat made of nickel alloy (Monel 400™)
  • Cap with lever
  • Gas-tight construction
  • ... (see codification)
Dimensions in mm Weight (W) in kg
Inlet L Outlet F H W
0 < Ps < 27 27 < Ps < 40
3/8" G 50 1/2" (G or NPT) 36 106 129 1,0
NPT 55
1/2" G 50 1/2" (G or NPT) 36 106 129 1,0
NPT 57
3/4" G 53 1/2" (G or NPT) 36 106 129 1,1
NPT 57
3/8" G 50 3/4" (G or NPT) 36 106 129 1,0
NPT 55
1/2" G 50 3/4" (G or NPT) 36 106 129 1,0
NPT 57
3/4" G 53 3/4" (G or NPT) 36 106 129 1,1
NPT 57

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 1982
CuSn5Zn5Pb5 CC491K
B505.836
1.1 Gasket PTFE
2 Stem EN 10088-3
X8CrNiS18-9 1.4305
AISI 303
3 Adjusting screw EN 12164
CuZn39Pb3 CW614N
B124-C37700
4 Spring plate EN 12164
CuZn39Pb3 CW614N
B124-C37700
5 Spring EN 10088-1
X10CrNi18-8 1.4310
AISI 302
6 Lantern EN 1982
CuSn5Zn5Pb5 CC491K
B505.836
7.5 Blow-down ring EN 12164
CuZn39Pb3 CW614N
B124-C37700
8 Plug/b> EN 12164
CuZn39Pb3 CW614N
B124-C37700
8.1 Composition disc PCTFE
11 Shoulder seat EN 10088-3
X2CrNiMo17-12-2 1.4404
A182 F316L
12 Body EN 1982
CuSn5Zn5Pb5 CC491K
B505.836
14 Guide EN 12164
CuZn39Pb3 CW614N
B124-C37700


7 7 0 1 0 0 - X X X - 00 00 00 - DN .. PN ..

7 7 0 1 0 0 - X X X - 00 00 00 - DN .. PN ..
Value Plug material
1 PTFE disc
2 PCTFE disc
5 Metal plug (copper or nickel alloys)
6 Metal plug (st. st.)


7 7 0 1 0 0 - X X X - 00 00 00 - DN .. PN ..
Value Inlet connection
2 Screwed end
3 Flanges
4 Butt welding fitting


7 7 0 1 0 0 - X X X - 00 00 00 - DN .. PN ..
Value Pressure rating
1 PN16 & class 150
2 PN25
3 PN40/50 & class 300


7 7 0 1 0 0 - X X X - 00 00 00 - DN .. PN ..
Value Option
E ATEX CE Ex II 2G/D


7 7 0 1 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