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worm gear or hand lever butterfly valve from factory

Categories Wafer Butterfly Valve
Place of Origin: Tianjin China
Brand Name: OTS
Model Number: OTS
Certification: ISO, CE, BV, KS, KC, SHA, TS, PED,
Price: 3-5USD
Packaging Details: in Wooden Carton
Delivery Time: 5-7days after confirmation
Payment Terms: TT, LC, DA, DP, Paypal, Escrow,
Supply Ability: 1000set.month
MOQ: 1 set
  • Product Details
  • Company Profile

worm gear or hand lever butterfly valve from factory

1. Brief Introduction

Triple-eccentric (offset) design

Triple eccentric (offset) Design prevents galling and scratches between the metal seat and the metal disc due to its unique design. The only time where the seal comes into contact with the seat is at the point of complete closure. Triple offset valves are generally used in applications which require bi-directional tight shut-off in oil and gas, LNG/NPG terminal and tanks, chemical factories, and shipbuilding. They are also used for dirty/heavy oil to prevent extrusion.

Wafer-style butterfly valves

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

Lug-style butterfly valve

Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

A lug-style butterfly valve used in dead end service generally has a reduced pressure rating. For example a lug-style butterfly valve mounted between two flanges has a 150 psi pressure rating. The same valve mounted with one flange, in dead end service, has a 75 psi rating.

Material details:

Design Standard

GB/T12238, BS 4504, BS 5155, JIS B2239/JPI, DIN3354, NF, EN593, API 609, MSS SP 67/68, ASME, ANSI, ASTM, AS 2129 Table D, Table E


JIS 5K, 10K,PN10, PN16, ANSI class 125, class 150, 10bar, 16bar, 10kg, 16kg, ......

End connection

Wafer, lug, flange, U type.....


Optional Materials


Ductile Iron(DI, QI, GGG40), Gray Cast iron(CI, GG25), Cast Steel(WCB), Stainless steel(304/306, 304L/316L, CF8/CF8M), Aluminum, Bronze(T), etc.


Ductile Iron(DI, QI, GGG40), Gray Cast iron(CI, GG25), Cast Steel(WCB), Stainless steel(304/306, 304L/316L, CF8/CF8M), Aluminum, Bronze(T), etc.


Q235, SS410, 416SS, 316SS, 304SS, CS45#coating with Ni plated


PTFE or Bronze


Nr, Hypalon, Neoprene, Wear-resistant Rubber,


Other accessories

SS or as per your request.


SS304, SS316, With or Without (pinless)


Handle lever, worm gear, electric actuator pneumatic actuator with limit switches, indicators, positioner, sensor. ...

Shipping: \

Wooden carton with Plastic and Blue PP Bags enclosing the valve


Best services: ---18 month quality gurantee, 10000 times turn on/off

Quality Management System Certification

---CE 0038 Certification

---ISO 9001: 2008 Certification

---Registration Certificate of Consignors and Consignees of Imports and Exports

---Certificate of approval

---PED Certification

---SHA Certification

---60055802 Certification

---KS Certification

---TS Certification

---Business license

---Organization Code Certificate


Attend the fair 2-3 times every year.


130 in domestic

6 in foreign


Tianjin OTS Valve Manufacturing Co., Ltd., a jointed company, established during the time of China Reform and Open to the World. specializing in all kinds industrial butterfly valves with 13340 meters, including 8600m work shop, fixed finance of RBM 200 millions as well as some advanced design, processing, assembling and testing for all butterfly valves. Further we are rich in the experience of producing butterfly valves over more than 10 years, all of the butterfly valves we produced come up to the advanced standard home and abroad.

1. Quality gurantee: 18months.

2. Factory: Yes

3. Any third party test: Yes, no problem.

4. Delaydelivery: Never.

5. Fixed assets: 4, 000, 000 USD.

6. exporting years: 10 years.

7. Finding some distributors, will have discounts.

8. staff: technical engineer: 15, workers: more than 120

9. Machines: more than 200sets

Cheap worm gear or hand lever butterfly valve from factory for sale
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