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Our Valves are suitable for high temperature, high pressure, abrasive, corrosive and/or scale forming media.











Segal-Sammi Pipeline Blinds

d  Segal Valves

Pipeline Blind Specifications
d

 

d  STANDARD APPLICATIONS

ASTM/ANSI standard

B16.6nbsp Pipe flanges and flanged fittings.
B16.34 Valves-flanged, threaded and welding end.
B31.1 Power piping.

ASME standard
Section 2 Material part
Section 8 Rules for construction of pressure vessels
Section 9 Welding & brazing qualifications?

API standard
598 Valve inspection and testing

MSS Standard
SP-6 Finish for contact faces of pipe flanges and connecting end flanges of valves and fittings
SP-25 Marking system for valves ,fittings, flanges and unions
SP-55 Quality standard for steel castings - valves, flanges, fittings, and piping components.

Final pressure testing (ANSI B16.34, API 598)
Class Seat & Shell
150 lbs 23 kg/cm (325 psi)
300 lbs 58 kg/cm (825 psi)
600 lbs 116 kg/cm (1650 psi)
900 lbs 172 kg/cm (2450 psi)
1500 lbs 288 kg/cm(4100 psi)

 

d  BODY MATERIAL

Carbon steel principle

Casting Plate (forging)
Body A216-WCB/WCC A015/A106
Blind Plate A240-304 A240-304
Seat A204-034 A204-304
Gearset A182-F304 A182-F304
Screw Shaft A479-304 A479-304
Bolt A193-B7 A193-B7
Nut A194-2H A194-2H

Stainless steel 304 principle
Casting Plate (forging)
Body A351-CF8 A240-304/A312-Tp304
Blind Plate A240-304 A240-304
Seat A240-304 A204-304
Gearset A182-F304 A182-F304
Screw Shaft A479-304 A479-304
Bolt A193-B8 A193-B8
Nut A194-Gr8 A194-Gr8

Stainless steel 316 principle
Casting Plate (forging)
Body A216-CF3M A240-316L/A312-316L
Blind Plate A240-316L A240-316L
Seat A240-316L A240-316L
Gearset A182-F316 A182-F316
Screw Shaft A479-316 A479-316
Bolt A193-B8 A193-B8
Nut A194-Gr8 A194-Gr8
Gasket
Material Service Temperature (C) Non compatible
NBR/HNBR (Nitrile Rubber) -40 ~ +120 Posphate easter
General purpose Keton
Resistance improved to ozone, sunlight and other atmospheric conditions (HNBR) Strong acids
Kerosene
Methanol Ethanol
blands
FPM/FKM (Viton / DIA-EL) -46 ~ +220 Amins
Good resistance to petroleum products Ketones
High temperature resistance
FEPV/FEPQ (Encapsulated O-Ring) -60 ~ +220
Good chemical inertness
Good heat resistance
High mechanical strength
PFAV/PFAQ (Encapsulated O-Ring) -60 ~ +260
Good chemical inertness
Excellent heat resistance
High mechanical strength
VMQ/FVMQ/PVMQ
(silicone Rubber )
-110 ~ +250
Good chemical inertness (FVMQ)
Excellent low temperature inertness (PVMQ)
Good heat resistance
PTFE/CTFE/Soft PTFE
(Teflon, Kel-F, Expanded Teflon)
-240 ~ +300
Excellent chemical inertness
Excellent low temperature inertness
Good heat resistance (Soft PTFE)
PEEK ~ +300
Excellent chemical inertness
Excellent heat resistance
High mechanical strength
FFPM/FFKM
(Kalrez,Perfluoro Elastomer)
~ +316
Excellent chemical inertness
Excellent heat resistance
Good resilience
Graphite
(Pure,Engineered Graphite)
-240 ~ +800
Excellent chemical resistance
Excellent temperature resistance
Metal -250 ~ + 1100
Excellent ultra high pressure and temperature