Wafer Triple Offset Butterfly Valve

Technical Parameters

Product model: D373W/H

Nominal diameter: DN50~1200mm

Nominal pressure: PN0.6~6.4MPa

Applicable temperature: ≤400℃

Applicable medium: water, oil, gas, acetic acid, nitric acid and other media

Body Material: WCB CF8 CF8 Chrome Molybdenum Steel Low Temperature Steel Nickel Alloy Monel Duplex Steel

Drive mode: worm gear drive, electric, pneumatic, hydraulic

Product Details

Product Structure Features

Wafer triple offset butterfly valve has one more offset feature compared to double offset design, which is the seat cone axis offset from the stem centerline that reduces the operating torque. Triple offset butterfly valves are widely used in power plant, petrochemical, metallurgy, water supply and drainage system, municipal construction as throttling flow and shutoff equipments.

The Main Structure Features Include

1.Without any friction between disc and sealing surface when opening or closing,

2.Can be installed in any position；

3.Zero leakage design;

4.Soft seat or metal seat is available as per customer request;

5.Unidirectional seal or Bidirectional seal is available as per customer request;

6.Spring loaded packing can be chosen;

7.Low emission packing can be chosen according to ISO 15848 requirement;

8.Stem extended design can be chosen;

9.Cryogenic temperature or ultra low temperature butterfly valve can be chosen as per customer request.

Main connection size PN（6、10）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

Main connection size PN（16、25）MPa

DN	Dimensions					Connection size
	L	H	D73H/D373H/D673H/D973H			PN1.6MPa		PN2.5MPa
	L	H	H1	A1	B1	D1	Z-d	D1	Z-d
50	43	112	350	180	200	125	4-18	125	4-18
65	46	115	370	180	200	145	4-18	145	8-18
80	49	120	380	180	200	160	8-18	160	8-18
100	56	138	420	180	200	180	8-18	190	8-22
125	64	164	460	180	200	210	8-18	220	8-26
150	70	175	555	270	280	240	8-22	250	8-26
200	71	208	605	270	280	295	12-22	310	12-26
250	76	243	680	270	280	335	12-26	370	12-30
300	83	283	825	380	420	410	12-26	430	16-30
350	92	310	900	380	420	470	16-26	490	16-33
400	102	340	980	450	470	525	16-30	550	16-36
450	114	380	1030	480	490	585	20-30	600	20-36
500	127	410	1105	480	490	650	20-33	660	20-36
600	154	470	1310	480	490	770	20-36	770	20-39
700	165	550	1435	640	660	840	24-36	875	24-42
800	190	640	1605	640	660	950	24-39	990	24-48
900	203	710	1745	750	860	1050	28-39	1090	28-48
1000	216	770	1885	850	900	1170	28-42	1210	28-56
1200	254	890	2105	850	900	1390	32-48	1420	32-56

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