Series 530SB, 730SB, and 9300B Digester Blow Valves - Metso Automation - (Version JPG) - PDF Catalogue | Technical Documentation

TYPE 530SB, 730SB, & 9300B DIGESTER BLOW VALVES

These valves are specifically designed for digester blow service, providing the inherent advantages of ball valves for this critical pulp-mill application.Special features give these valves the capability to withstand characteristic extremes in pressure and temperature, passage of corrosive and abrasive media, thermal shock, and flashing.

The highest degree of versatility to meet varying digester conditions is provided by the availability of metal-wrapped filled-PTFE seats for operations requiring shutoff capability of polymeric seats.The balls are tunnel-bored with rugged trunnion bearings to provide maximum flow and shock resistance for improved and long-lasting operation

Type 730SB and Type 530SB valves are standard-port configurations.These valves conform to ASME/ANSI Class 300 specifications, except for length, which corresponds to Class 150 specifications.Type 730SB valves are currently available in the 8" and 10" (DN 200 and 250) sizes.Type 530SB valves are currently available in 12" (DN 300) sizes.

Type 9300B valves are full-port designs and conform to ASME/ANSI Class 300 long-pattern specifications. Type 9300B valves are currently available in sizes 6",8", and 10" (DN 150,200,and 250).

VALVE SEAT RATINGS

Seat pressure and temperature limits are shown by the shaded area in the graph below. Seat working limits are based on differential pressure with the valve ball in the fully closed position and refer to seats only.The dotted line indicates the maximum valve body pressure and temperature rating for 316 and 317 stainless steel.

FLOW DATA

The table below provides flow coefficients for Type 730SB,Type 530SB, and Type 9300B valves covered in this bulletin. The Cv values represent the number of gallons per minute of +60°F water that flows through the valve at a pressure drop of 1 psi.The metric equivalent, Kv, is the flow of water at 16°C through the valve in M³/hr at a pressure drop of 1 kg/cm².To convert Cv to Kv, multiply by 0.8569.

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Cv Values
Valve Size		Type 730SB	Type 530SB	Type 9300B
inches	DN	Type 730SB	Type 530SB	Type 9300B
6	150	-	-	5100
8	200	1890	-	9300
10	250	3900	-	15200
12	300	-	6700	-

VALVE BODY RATINGS

These are maximum working pressure ratings of the valve body only.The seat ratings determine the practical pressure limitations according to actual service conditions. Test pressures are for hydrostatic test with ball half open.

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800 700 600 500 400 300 200 100

Temperature C

50 100 150 200 250 300


	- /	-Class 300 stainless-steel
	\	body rating
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Seat Pressure and temperature limits
for metal-wrapped filed PTFE

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Temperature	Pressure	Temperature	Pressure
°F		°C	bar
-20 to 100	720	-29 to +38	49.6
200	620	100	42.2
300	560	150	38.5
400	515	200	35.7
500	480	250	33.4
Test Pressure	1100	Test Pressure	75

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Corresponds to ratings of ASME B16-34-2004 for material grades shown in bill of materials on page 2.

0 100 200 300 400 500 600

Temperature F

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Series 530SB, 730SB, and 9300B Digester Blow Valves - Metso Automation - #1

Butterfly valve, High performance valve, Valve, Wafer valve, Ball valve