ASTM A351 CF8 Butterfly Valve, API 609, 6 Inch, 150 LB

Double Flange CF8 Gearbox Operated Butterfly Valve

Design Standard: API 609
Body Material: ASTM A351 CF8
Nominal Diameter: 6 Inch, DN150
Pressure: Class 150 LB, PN20
End Connection: Double Flange Type End, RF
Face To Face: API 609
Test And Inspection: API 598
Connection: Double Flange
Seal: Soft Sealed
Work Pressure: High Pressure (Pn<10 Mpa)
Material of Seal Surface: Soft Sealed
Application: Industrial Usage, Water Industrial Usage, Household Usage
Driving Mode: Worm Gear
Structure: Double Eccentric, Double Offset
Valve Stem: Normal
Working Temperature: Low Temperature (T<150°C)
Valve Body: Casting
Feature: Gearbox operated butterfly valve

Product Range

Size: 2 - 64 Inch, DN50-DN1600
Body: Carbon Steel, Stainless Steel
Disc: Carbon Steel, Stainless Steel, Monel
Shaft: Stainless Steel, Monel
Seat: PTFE, RPTFE, PPL
Operator: Worm Gear, Electric Actuator, Pneumatic Actuator

Uses of product

This product's working temperature is -35℃-150℃ and suitable for throttling or shutting off the flow of corrosive or incorrosive gases, liquids, semiliquids, semiliquids and solid powder, and can be installed in and selected position in pipelines or on vessels in the industries of petroleum processing, chemicals, food, medicine, textile, paper making, hydroelectricity engineering, Shipbuilding, water supply and sewage, metallurgy, energy engineering as well as light industry, etc.

The Design of Triple Offset Butterfly Valve



The centerline of Seal Surface
 

Design Criteria	Flange Standard	Face-to-face Length Standard	Test Standard
GB/T 12238	GB/T 9113	GB/T 12221	GB/T 13927
EN593	EN1092	EN558	EN12266-1
API 609	ASME B 16.5 ASME B 16.47B	API 609 ASME B 16.10	API 598

1. Seal with elastic metal steel in the interlayer enables the valve to have zero leakage performance.
2. The friction-free design of right-angle rotation is realized by a unique triple offset design. There is no friction between the seat and seal ring when the valve opens from 0 to 90 degrees, which eliminates the possibility of wear and leakage and prolongs the service life of the valve.
3. Torque seal can meet the requirement of two-way zero leakage in the long-term operation of the valve. The switch life of the valve allows five hundred thousand times.
4. An all-metal structure with zero leakage performance makes the valve has essential fire safety characteristics.
5. The butterfly valve adopts a precision casting process, including the body and the disk. This process has many advantages compared to the steel plate coiling process, the most important of which is that the overall strength of the valve is high, and the cost of it is also higher than that of the coiling process.
6. The external blow-out-proof stem is safe and reliable and complies with the requirements of API 609.


 

PN6	DN	L	D1	D2	D3	N-0)	n-M	b	f	ISO5211	Nm	Weight	cv	H	H1	H2
	2"(DN50)	108	140	110	88	4-014	/	16	3	F07	26	14	58	72	178	40
	2.5"(DN65)	112	160	130	108	4-014	/	16	3	F07	30	17	109	80	189	40
	3"(DN80)	114	190	150	124	4-<t)18	/	18	3	F07	45	20	165	95	199	40
	4"(DN100)	127	210	170	144	4418	/	18	3	F07	60	24	318	105	209	40
	5"(DN125)	140	240	200	174	8-018	/	20	3	F10	100	36	648	165	250	60
	6"(DN150)	140	265	225	199	8-018	/	20	3	F10	180	40	932	185	270	60
	8"(DN200)	152	320	280	254	8-018	/	22	3	F12	320	62	1970	225	310	60
	10"(DN250)	165	375	335	309	12-018	/	24	3	F12	420	80	2689	260	345	60
	12"(DN300)	178	440	395	363	12-022	/	24	4	F14	700	100	3930	280	375	80
	14"(DN350)	190	490	445	413	12-022	/	24	4	F16	1600	112	5290	315	430	80
	16"(DN400)	216	540	495	463	16-022	/	24	4	F16	1700	136	7726	345	465	80
	18"(DN450)	222	595	550	518	16-022	/	24	4	F16	1800	176	9856	370	505	90
	20"(DN500)	229	645	600	568	20-022	/	26	4	F16	2200	255	12180	410	525	100
	24"(DN600)	267	755	705	667	20-026	/	26	5	F25	4600	324	19800	440	605	125
	28"(DN700)	292	860	810	772	24-026	/	26	5	F25	5000	475	34900	480	650	150
	32"(DN800)	318	975	920	878	24-030	/	26	5	F25	7000	600	46300	578	711	150
	36"(DN900)	330	1075	1020	978	24-030	/	26	5	F25	9500	712	60700	615	765	150
	40"(DN1000)	410	1175	1120	1078	28-030	/	26	5	F25	12000	880	75700	665	815	150
	48"(DN1200)	470	1405	1340	1295	32-033	/	28	5	F35	26000	1135	110000	760	965	150
	56"(DN1400)	530	1630	1560	1510	36-0)36	/	32	5	F35	38000	1600	151000	925	1120	180
	64"(DN1600)	600	1830	1760	1710	40-036	/	34	5	F35	48000	2200	232000	1030	1240	180
	72"(DN1800)	670	2045	1970	1918	44-039	/	36	5	F40	68000	2800	296000	1130	1365	250
	80"(DN2000)	540	2265	2180	2125	48-042	/	38	5	F48	88000	4000	380000	1250	1520	250