API Flat Gate Valve,WCB,CF8,CF3,CF8M,CF3M,LCB,LCC,LC1,PSB,BW, Pressure sealing, Butt welded

Short Description:

1. Design Basis
Design and manufacture according to: API 600
Flange standard: ANSI B16.5
Face to face: ANSI B16.10
Pressure-Temperature: ANSI B16.34
Inspection and testing: API 598

2. Product Feature
▪ Casting structure.
▪ The seal ring uses the floating seat ring structure with o-seal ring sealed and pre-tightening force applied to have inlet and outlet dual-way sealed. And the structure of the open-close torque is only 1/2 of ordinary valves, easily open and close.
▪ Seat sealing face is embedded with PTFE with double functions of PTFE and metal seal.
▪ Whether in full open or close ram is always in accordance with the sealing surface. Sealing face protected without being directly eroded by the medium, so as to prolong service life.
▪ Using closed gear open-close indicating can clearly reflect the opening and closing of the valve for a long time.
▪ Epoxy coal bitumen and can be the same duration as the pipeline.

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Technical parameters and characteristics

Product	Flat Gate Valve
Nominal diameter	2″ - 48″	DN50 - DN1200
Design temp.	-196℃ - 593℃
Design pressure	class 150 - 1500	PN16 - PN250
Material	A216 WCB, WCC; A217 WC6, WC9, C5, C12A; A352 LCB, LCC; A351 CF8, CF8M, CF3M, CF8C, CN3MN, CK3MCUN, CN7M; A890 4A(CD3MN), 5A(CE3MN), 6A(CD3MWCuN); ASTM B 148 C95800, C95500
Design standard	API 6D
Face to Face	ASME B16.10	EN558 series
Connection end	RF, RTJ, BW	EN1092 series
Test standard	API 598, ISO 5208	EN12266-1
Operation	Hand wheel, bevel gear, electric-AUMA, Rotork, pneumatic
Application	Power station, petroleum, tap water engineering, chemical engineering
Feature 1	Single Disc
Feature 2	Double Disc
Feature 3	SOFT seal: fire safe, double sleeve sealed, double block & bleed, self cavity relief, emergency sealant injection, diversion hole design.
Feature 4	Metal seal: double sleeve sealed, hard seat seal, double block & bleed, self cavity relief, diversion hole design.