Hard Seal Three Eccentric Wafer Butterfly Valve

FEATURES

• Triple eccentric structure: ensures frictionless contact between the butterfly plate and the valve seat, improving sealing performance and service life.
• Metal hard seal: The sealing ring is made of hard materials such as stainless steel, which has excellent corrosion resistance and wear resistance.
• Multi level sealing structure: further improve the sealing effect of the valve.
• Electric actuator: flexible, labor-saving, convenient to operate, not affected by medium pressure.
• Clamp connection method: easy and fast installation, suitable for the connection needs of various piping systems.
• Bidirectional sealing performance: The cone angle of the sealing surface is smaller than the friction angle of the sealing material, and the butterfly plate immediately achieves self sealing when it is closed to the sealing position lock and able to withstand a certain amount of reverse pressure impact.

PARAMETER

• Design to comply with API609, JB/T8527, GOST P53673, Compatible with DIN, BS, JIS
• Face to face: ASME B16.10, GB/T12221, GOST 3706
• Testing & inspection: API598, GB/T13927, GOST 33257
• Body Material: WCB, CF8, CF8M, CF3M, 2205, 2507, 2520
• Disc Material: WCB, CF8, CF8M, CF3M,2205,2507,2520
• Stem Material: 20Cr13,17-4PH,2205,2507,2520
• Seat Ring: Graphite+Metal(multilevel), PTFE+Metal, All-PTFE
• Transmission mode: Manual, Worm gear, Pneumatic, Electric, Hydraulic
• Applicable Temperature: -29-550 ℃
• Nominal diameter: DN50~DN1800, NPS 2”~NPS 72”
• Nominal pressure (Mpa): PN10~PN40, Class150~600, 10K~45K

PRODUCT STRUCTURE FEATURES

Main connection size PN（0.6、1.0）MPa

DN	Dimensions					Connection size
	L	H	D73H/D373H/D673H/D973H			PN0.6MPa		PN1.0MPa
	L	H	H1	A1	B1	D1	Z-d	D1	Z-d
50	43	112	350	180	200	110	4-14	125	4-18
65	46	115	370	180	200	130	4-14	145	4-18
80	64	120	380	180	200	150	4-18	160	8-18
100	64	138	420	180	200	170	8-18	180	8-18
125	70	164	460	180	200	200	8-18	210	8-18
150	76	175	555	270	280	225	8-18	240	8-22
200	89	208	605	270	280	280	12-18	295	8-22
250	114	243	680	270	280	335	12-22	350	12-22
300	114	283	800	380	420	395	12-22	400	12-22
350	127	310	835	380	420	445	16-22	460	16-22
400	140	340	915	450	470	495	16-22	515	16-26
450	152	380	960	480	490	550	16-22	565	20-26
500	152	410	1020	480	490	600	20-22	620	20-26
600	178	470	1225	480	490	705	20-26	725	20-30
700	229	550	1355	640	660	810	24-26	840	24-30
800	241	640	1470	640	660	902	24-30	950	24-33
900	241	710	1545	750	860	1020	24-30	1050	28-33
1000	300	770	1795	850	900	1120	28-30	1160	28-36
1200	360	890	1965	850	900	1340	32-33	1380	32-39