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Company:Wenzhou Topnotch Machine Co.,Ltd. 
Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105
Contact Person: Mr. Kevin Tung
Tel: +86-577-67318591 67318935
MB: 86-18906638592
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Sleeve Type Soft Sealing Plug Valve

Sleeve Type Soft Sealing Plug Valve are non-lubricated quarter-turn valves that achieve sealing through the use of a compressible sleeve as a sealing member. In many applications they operate virtually maintenance free for decades.Our valves are used for on/off and throttling service in demanding process applications with media temperatures ranging from -29℃ to 180℃. Standard sizes from 1/2" to 14", ANSI class 150-900. Body & plug materials range from cast steel and stainless steel to other special alloy steel.

Sleeve type soft sealing plug valve 


Sleeve type soft sealing plug valve ANSI is applicable to the cutting and connection of pipelines medium that are used in various industried such as petroleum,chemical industry,pharmacy,chemical fertilizer,electricpower industry etc under nominal pressure of CLASS 150-900lbs and working temperature of -29-180C.

Main structural features:
1.Plug valve with Sleeve type PTFE seal serves as cutting and connecting medium on the pipeline.
2.It can be used in large-scale Chemical industry .
3.It is suitable for water, steam, oil, other corrosive acid.
4.It has reasonable structure, Reliable seal face (Sleeve type PTFE ), Excellent performance
And perfect appearance.
5.It adopt all around Sleeve type PTFE seal, can ensure zero leakage.
Special 360 º metal edge can assure fix Sleeve well.
6.It is designed with no cavity, therefore medium will not accumulate.
7.It can be used as double -direction flow.It is very convenient for installation and usage,
8.Material and flange dimension can be selected by practical working condition.

Actuator:Wrench, Wheel, Worm gear, Pneumatic, Electric.
Connection:Flange, Socket weld, Butt weld.Thread etc. 

Sleeve type soft sealing plug valve

ANSI Plug valve

Class 150LB-900LB SIZE 1/2"~14"

DIN Plug valve

DN50-DN350, PN16~PN40

JIS Plug valve

DN50-DN350 10K~63K

BS Plug valve

DN50-DN350, PN16~PN40


A105,LF2,F11,F22,F5,F304,F316,F304L,F316L(1/2"-2" )

Design & Manufacture Std

API599, API 6D,ASME B16.34, JISB2071, JISB2073,JISB2083, BS 1873,BS1414

Face to Face Std

ASME B16.10,DIN 3202,BS2080, API 6D, JISB2002

End Connection Std

ASME B16.11,ASME B1.20.1,ASME B16.5, DIN2543-2550 ,JISB2212-JISB2214

Test Standard

ISO5208,BS 6755, API598,API 6D,JISB2003,DIN3230

Main parts materials:

NO.Part nameMaterial
3PlugASTM A217-WC1,WC6.WC9,C5,ASTM A351-CF8,CF8M,CF3,CF3M
4GasketFlexible graphite+stainless steel、PTFE
5Adjusting gasketASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304,F316,F321,F304L,F316L
7Adjusting boltASTM A193-B7,A320-B8,A193-B8M
8NutASTM A194-2H,A194-8,A194-8M
9BoltASTM A193-B7,A320-B8,A913-B8M

Note:The size of serial valve connecting flange can be designed according to customers,repuirement

Other Plug valves are also available: Oil seal pressure balance plug valve,self-lubricated plug valve,3 way/4 way plug valve.

To know more details, please download catalogue or contact with us. 

Wenzhou Topnotch Machine Co.,Ltd is a professional leader China Sleeve type soft sealing plug valve,PTFE Sleeved Plug Valves,inverted pressure balance plug valve,sleeve type plug valve,Sleeve type soft sealing plug valve,Inverted Pressure Balance Lubricated Plug Valve manufacturer with high quality and low price.Welcome to contact us!

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.


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Contact Us

​Company:Wenzhou Topnotch Machine Co.,Ltd. 

Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105

Contact Person:
  Mr. Kevin Tung 

Tel: +86-577-67318591 67318935


MB: 86-18906638592

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