China High Quality Slide Gate Valve Manufacturers – ExpansiIon Type Flat Gate Valve,WCB,CF8,CF3,CF8M,CF3M,LCB,LCC,LC1,BB,PSB,BW, Pressure sealing, Butt welded – UNIQUE

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.

Main Feature

The two sealing faces of a slab gate valve are perpendicular to the pipeline axis, its closing member have double discs, valve equipped with a stretching mechanism. The gate valve is widely applicable for transmission pipeline system of natural gas,oil products and chemical engineering. The valve obturator have two parts, the seal surface are parallel each other, and with wedge-shape joint surface. The obturator parts are separated from each other, it can ensure the sealing performance even when the temperature changes caused by deformation, and can avoid leaving the gate due to heat expansion choked open. At sealing surface using hard alloy material of corrosion and wearing resistance, so it can ensure the sealing performance and extend the service life. Fully enclosed structure design, keep the valve fine protection, can be used at all weather.