Floating ball valve

Size: NPS1/4″-8″
Rating: Class150-600 LB
Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
End: SW, BW, RF, RTJ, NPT, BSP, Speial
Operation: Operation: Manual, Gear, Pneumatic, Electric

Design & Manufacture Standard: API6D, ASME16.34, BS5351
Face to Face: ASME B16.10, API6D
End Connection: ASME B16.5, ASME B16.25
Test Standard: API6D, API598

Category: Ball Valve

Description
MATERIAL SPECIFICATION

Product Description

Fire safe design

1.Stem leakage prevention, before fire happen, the leakage from the valve stem is prevented by O-ring seals and gasket. When fire happens, the O-rings, gasket has been destroyed. The graphite stem packing still can be prevents external leakage.

2.Seat leakage prevention, after the soft sealing materials has been destroyed by fire, the seat pre-loaded spring comes into contact with the ball to block the leakage, also a graphite seat gasket is compressed by the spring to prevent leakage between the valve body and seat.

Anti- Blowout Stem design

Formen ball valves stem is made separately from the ball. The lower end of the stem is designed with an intergral shoulder to be blowout-proof.

Anti-static Device

Its a standard feature of antistatic device for Formen ball valve. A spring-loaded pin assures the electrical continuity between the ball, stem and body to avoid sparking during the turning of the stem to open and closed the valve.

MATERIAL SPECIFICATION

PART	CARBON STEEL	MARTENSITIC SS	AUSTENITIC SS	DUPLEX SS SUPERDUPLEX SS	NICKEL ALLOY
BODY&BONNET	A105 A350 LF2 A350 LF3	A182 F6a AISI 410	AISI 316 AISI 304 AISI 321 A182 F44	A182 F51 A182 F53 A182 F55	MONEL 400 INCONEL 625
BALL&SEAT	A105+ENP75μm A350 LF2+ENP75μm A350 LF3+ENP75μm	A182 F6a AISI 410	AISI 316 AISI 304 AISI 321 A182 F44	A182 F51 A182 F53 A182 F55	MONEL 400 MONEL K500 INCONEL 625
SEAT INSERT	SOFT SEATED: PTFE,RPTFE,NYLON,DEVLON,PEEK,KEL-F,VESPEL METAL SEATED: Tungsten carbon coated, Chromium carbide coated.
STEM	AISI 4140+ENP75μm	–	AISI 316 AISI 304 AISI 321 A182 F44	A182 F51 A182 F53 A182 F55	MONEL K500 INCONEL 718
BOLTING	A193 B7/A194 2H A193 B7M/A194 2HM A320 L7/A194 Gr.4 A320 L7M/A194 Gr.7M	–	A193 B8/A194 Gr.8 A193 B8M/A194 Gr.8M	A182 F51 A182 F53 A182 F55	-
SEALS	O-ring(std temp) Lip seals(low temp) Graphite or spiral wound(high temp)