Boiler Main Feedwater Control Valve

1.Boiler feedwater control valve 2.Velocity control sever service trim 3.Lowest operational torque 4.Lowest maintenance cost

Electric actuator operated boiler main feed water control valve in feed water system

Type: straightway/globe

Connection type: RF & RTJ     ANSI B16.5

                                     BW           ANSI B16.25

Size: 2"~14"

Pressure: CLASS 150LB~~1500LB

Body materials: A216 WCB, A217 WC9, A217 C5, CF8(304), CF8M(316), CF3(304L) CF3M(316L)  20 alloy, Monel titanium alloy etc. or depend on customer's special request.

 Trim Assembly

Plug Type: Balanced plug; Solid plug; Self-cleaned plug

Flow Characteristic: Equal Percentage/Linear Quick Opening

inner materials: ASTM A276 431, ASTM A276 420, 440C, 630 Stainless steel, 316,316L with Stellite, or other materials provided according to customer's requirements.

Actuator

 Select by manufacturer or according to customer's requirment.

Accessory

 Select homemade or imported electric/pneumatic valve positioner, according to customer's requirement.

 Main parts materials

parts	material	parts	material
body	A216 WCB, A351 CF8M etc.	packing	Flexible graphite
seat ring gasket	Flexible graphite+loop board	gland	ASTM A182 F316, A276
seat ring	ASTM A276 431	stem	ASTM A182 F316, A276
spiral wound gasket	ASTM A276 431	cover board	ASTM A29 1045
disc	Flexible graphite+316	bonnet	A216 WCB, A351 CF8M etc.
Bonnet gasket	Flexible graphite+loop board	cage gasket	Flexible graphite+loop board
Main nuts	ASTM A29 1045	Main bolts	ASTM B7

Note: Other materials are available upon request.

PS: When ordering, please specify nominal pressure, bore diameter, working pressure and temperature, max flow, max design pressure differential, medium, type of actuator and connection standard etc.

Boiler Main Feedwater Control Valve