Sinotai Petroleum Equipment Co., Ltd.: 5Yrs

Shandong, China; Main products: Petroleum Equipments

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Home > Products > Protective Equipment > Hot selling!! Centric Disc Butterfly Valve for China supplier

Hot selling!! Centric Disc Butterfly Valve for China supplier

FOB Price

USD $100 - $2,000 / Piece

1 Piece(Min.Order)

Supply Ability 1000 Piece / Pieces per Month
Port Shanghai /Tianjin / Qingdao Port
Payment TermsT/T L/C D/P D/A

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Product Details

Standard or Nonstandard	Standard	Structure	Butterfly
Pressure	High Pressure	Power	Hydraulic
Material	Alloy	Temperature of Media	High Temperature
Media	Oil	Port Size	2"-24"
Place of Origin	China	Model Number	GB
Brand Name	SINOTAI

Packaging Details

export standard packing or as customer's requirment

Product Description

Specifications

1.Centric Disc Butterfly Valve
2.High quality,low price and delivery fast
3.made in China

Design characteristics of resilient seated butterfly

Connecting Flange of Drive:

Applicable for manual, worm gear, electric and pneumatic connection devils (2"—24" lo

ISO5211)

Bushing: used as valve stem support, positive shaft correction and brake support. There are bushings of low friction coefficient at the two ends of stem to reduce the frictional force of stem and open-close torque of valve.

Disc: Streamlined design of disc, the upper and lower stem ends in close contact with the seat to avoid medium leaking from the stem surface accurate disc ex-circle in precise match with the seat to ensure low open -close moment of valve and long service life of seat under the state of sealed. The shape of disc differs from the type of connection to the stem, and the flow coefficient of valve is closely associated with the structural type of disc.

Valve body, classified to the following according to structural types:

1. WS -four -lug shaftless body, applicable for DN50-DN600

2. WL-lugless body, applicable for DN50-DN300

3. WF -single reinforcement body, applicable for DN550-DN1200

4. WU -Unthreaded body, applicable for DN700- DN1200

5. LL-Lug wafer body, applicable for DN500-DN600

6. LU-U screw body, applicable for DN700-DN1200

7. TH-threaded body, applicable for DN50-DN150

8. GR-clamped body, applicable for DN650-DN300

Connection Structure of Stem Head:

According to the difference in driving mechanism, there may be key connected, opposite flat or square (flat or square applicable for 2"-24").

Stem seal: sealing material may be soft graphite. PTFE or rubber (O-ring) according to working conditions and medium.

Stem: for DN<24", stem is one-shaft structure; for DN>24",stem is segmental (upper and lower shafts) structure. Stem and disc are connected by pin to guarantee the accurate position of disc switch.

Pin: to guarantee vibration protection and the connection between shaft and disc, there are three types of connection between stem and disc.

1. Taper pin connection, applicable for DN50-DN1200.

2. Semi-shaft pinless connection, application for DN50-DN600.

3. Total-shaft pinless connection, application for DN50-DN300.

Seat: non-expansion, resistance against expansion and breakage. Pressure mould soft sealing material. The dovetail groove on the seat in contact with the body to ensure the seal between the seal and body, and that the connecting gasket to flange can be omitted. For repair, just replace the seat directly, thus to improve the service life of valve.

The structural types of our butterfly valve seat:

1. Dovetail Seat 2. Cylindrical Seat

3. Shoe-type Seat 4. Vulcanized Seat

Type of Body

WS LU-U GR LL

WL TH WU WF

Type of Seat

Connection Structure between Disc and valve shaft

C S T

Suitable for DN50-DN1200 Suitable for DN50-DN600 Suitable for DN50 - DN300

Structural Explosion Diagram of Centered Seal Butterfly Valve

Material List

No.	Part Name	Material	Opptional Material
1	Body	Cast Iron	Ductile Iron
2	Seat	NBR or EPDM	Neoprene,VITON,PTEE
3	Disc	Ductile Iron	Aluminum Bronze,SS,Monel
4	Bushing	PTFE	Luberized Bronze
5	Pin	316	Monel
6	Bushing	PTFE	Luberized Bronze
7	Stem	416	316,Monel
8	Packing Seat	F6a	F6a
9	Packing	Graphite
10	Packing Bushing	F6a	SS
11	Gland	Carbon Steel	SS
12	Yoke	Carbon Steel	Carbon Steel
13	Bolts	B7	SS
14	Gasket	Carbon Steel	SS
15	Stud	B7	SS
16	Nut	2H	SS

1. Pressure and temperature rating of casing material referred to Appendix F.

2. Chemical compositions and mechanical property of casing material referred to Appendix G.

3. Trim materials and recommended service coverage referred to Appendix E.

Technical Specification:

Design Standard		GB/T12238			API609,MSS SP-67
Pressure-Temperature Rating		GB/T12224			API609
Face-Face		GB/T12221			API609
Flange Ends		GB/T9113, JB/T79			ASME B16.1B16.5B16.47BS4504
Inspection &Test		JB/T9092,GB/T13927			API598
Nominal Pressure(MPa)		1.0	1.6	2.0	CLASS125	CLASS150	CLASS250
Test Pressure	Shell Test	1.5	2.4	3.0	1.55	2.94	3.11
	High Pressure Seal Teat	1.1	1.76	2.2	1.13	2.16	2.28
	Low Pressure Seal Teat	0.6	0.6	0.6	0.6	0.6	0.6
Applicable Temperature		-10℃-120℃ Different raw material for different work temperature
Applicable Medium		Water,oil,gas and other causticity medium (Different raw material for different medium)

Single Flange Butterfly Valve

VALVE SIZE		L	L1	D	D1	dmin	n-d	G	K	n-d1	do	T	H	H1	E	WT (kg)
NPS	DN	L	L1	D	D1	dmin	n-d	G	K	n-d1	do	T	H	H1	E	WT (kg)
22	550	156	151.4	745	680	529.9	20-33	276	165	4-22	51	30	537	972	66	175
24	600	156	151.4	824	725	571.6	20-31	276	165	4-22	51	30	562	1021	66	188
26	650	171	165	845	780	625.9	24-33	300	254	8-18	64	30	591	1063	66	271
28	700	169	163	895	840	675.6	24-31	300	254	8-18	64	30	624	1144	66	284
32	800	195	188	1015	950	772.1	24-34	300	254	8-18	64	30	672	1263	66	368
34	8500	211	203	1070	1000	796.2	28-33	300	254	8-18	75	47	695	1294	118	685
40	1000	224	216	1230	1160	940.5	28-37	300	254	8-18	85	50	800	1521	141	864

Note: Dimensions for mounting flange above mentioned conform to BS4504 PN10, and top mounting conform to ISO5211.When required, standards from other countries or any special requirements are also available.

U-Section Butterfly Valve

VALVE SIZE		L	L1	D	D1	dmin	n-d	G	K	n-d1	do	T	H	H1	E	WT (kg)
NPS	DN	L	L1	D	D1	dmin	n-d	G	K	n-d1	do	T	H	H1	E	WT (kg)
30	750	173	167	984	914.4	725.5	28-1 1/4	300	200	8-18	64	54	660	1286	66	367
36	900	211	203	1168	1085.5	840.5	32-1-1/2	300	200	8-18	75	61	720	1494	118	591
42	1050	261	251	1346	1257.3	999	36-1-1/2	300	200	8-18	95	67	858	1785	150	811
48	1200	266	276	1511	1422.4	1126.6	44-1-1/2	350	200	8-22	105	70	941	1955	150	1823

Note: Dimensions for mounting flange above mentioned conform to ANSI B16.1 CLASS 125, and top mounting conform to ISO5211.When required, standards from other countries or any special requirements are also available.

Thread End Butterfly Valve

VALVE SIZE		L	L1	H	H1	W	E	F	WT( kg)
NPS	DN	L	L1	H	H1	W	E	F	WT( kg)
2	50	108	54	105	57	203	87.88	76.20	4.8
3	80	124	62	153	70	203	119.13	103.12	7.1
4	100	130	65	161	94	203	155.70	134.87	10.1
6	150	178	89	231	121	330	277.33	196.85	21.8

Note: Connected screw can be manufactured according to customer’s requirements.

Groove End Butterfly Valve

VALVE SIZE		L	L1	L2	H	H1	H2	A	B	C	D	do	G	K	4-d1	t	WT (kg)
NPS	DN	L	L1	L2	H	H1	H2	A	B	C	D	do	G	K	4-d1	t	WT (kg)
2 1/2	65	97	16	9.5	126	74	32	62.5	72.3	76.1	87	10	90	70	4-9	12	3.4
3	80	97	16	9.5	131	80	32	76	84.9	88.9	99	10	90	70	4-9	12	3.9
4	100	116	16	9.5	149	94	32	101	110.1	114.3	126	12	90	70	4-9	12	5.4
5	125	134	16	9.5	172	107	32	127	135.5	139.7	159	12	90	70	4-9	12	10.5
6	150	134	16	9.5	183	123	32	150	160.9	165.1	178	16	90	70	4-9	14	11.8
8	200	148	19	11.0	205	149	32	202	214.4	219.1	231	26	90	70	4-9	14	16.0
10	250	160	19	12.7	260	186	45	253	268.3	273	283	24	125	102	4-11	18	32.6
12	300	166	19	12.7	285	213	45	303	318.3	324	324	24	125	102	4-11	18	41.5

Note: The Grove dimensions above mentioned conform to ANSI/AWWA C606.TOP mounting conform to ISO5211.The groove dimensions can also meet standards from other countries.

Company Profile

Sinotai Petroleum Equipment Co., Ltd.

As a professional supplier of OCTG, drilling equipment and workover service, Sinotai Petroleum Equipment Co., Ltd. lies in the production base of petroleum equipment and China's second largest oil field --Shengi Oilfield. Our company is a high-tech enterprise in Dongying City with business scope covering the sale, trading, post-sale service and technological development of a wide variety of petroleum equipment. Besides OCTG, we provide our customers with other drilling and oil recovery equipment like fishing tools, cementing tools, workover rigs, pumping units and OCTG accessories. The striving target of our company is "Prestige first, Quality supreme; The shortest delivery time, The lowest price, The best quality". Customers' needs are our first priority and customer satisfaction is the bottom line by which we measure our success.

Contact Us

Sinotai Petroleum Equipment Co., Ltd.: Contact nameHerish Kuo
Chat Now; Phone86-546-8300512; AddressNo. 107, Bldg. 45, Gaoerfu, Wanda, Dongcheng

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Product Categories

Cementing tools	Down hole tools	Drilling Rig Accessories	Drilling Tools
Mud pump system	New Products	OCTG	Petroleum Instrument
Production Equipment	Protective Equipment	solid control system	Well control system
well head tools

Hot selling!! Centric Disc Butterfly Valve for China supplier

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