Worm Gear
Description:
TWS produces series manual high efficiency worm gear actuator, is based on the 3D CAD framework of modular design, the rated speed ratio can meet the input torque of all different standards, such as AWWA C504 API 6D, API 600 and others.
Our worm gear actuators, have been widely applied for the butterfly valve, ball valve,plug valve and other valves, for opening and closing function. BS and BDS speed reduction units are used in the pipeline network applications. The connection with the valves can meet ISO 5211 standard and customized.
Characteristics:
Use famous brand bearings to improve efficiency and service life. Worm and input shaft are fixed with 4 bolts for higher safety.
Worm Gear is sealed with O-ring, and the shaft hole is sealed with rubber sealing plate to provide all-round water-proof and dust-proof protection.
The high efficiency secondary reduction unit adopts high strength carbon steel and heat treatment technique. More reasonable speed ratio provides a lighter operation experience.
The worm is made of ductile iron QT500-7 with the worm shaft （carbon steel material or 304 after quenching）， combined with high-precision processing, has the characteristics of wear resistance and high transmission efficiency.
The die-casting aluminum valve position indicator plate is used to indicate the opening position of the valve intuitively.
The body of worm gear is made of high-strength ductile iron, and its surface is protected by epoxy spraying. The valve connecting flange conforms to IS05211 standard, which makes the sizing more simple.
Parts and Material:
|
ITEM |
PART NAME |
MATERIAL DESCRIPTION(Standard) |
|||
|
Material Name |
GB |
JIS |
ASTM |
||
|
1 |
Body |
Ductile Iron |
QT450-10 |
FCD-450 |
65-45-12 |
|
2 |
Worm |
Ductile Iron |
QT500-7 |
FCD-500 |
80-55-06 |
|
3 |
Cover |
Ductile Iron |
QT450-10 |
FCD-450 |
65-45-12 |
|
4 |
Worm |
Alloy Steel |
45 |
SCM435 |
ANSI 4340 |
|
5 |
Input Shaft |
Carbon Steel |
304 |
304 |
CF8 |
|
6 |
Position Indicator |
Aluminium Alloy |
YL112 |
ADC12 |
SG100B |
|
7 |
Sealing Plate |
BUNA-N |
NBR |
NBR |
NBR |
|
8 |
Thrust Bearing |
Bearing Steel |
GCr15 |
SUJ2 |
A295-52100 |
|
9 |
Bushing |
Carbon Steel |
20+PTFE |
S20C+PTFE |
A576-1020+PTFE |
|
10 |
Oil Sealing |
BUNA-N |
NBR |
NBR |
NBR |
|
11 |
End Cover Oil Sealing |
BUNA-N |
NBR |
NBR |
NBR |
|
12 |
O-Ring |
BUNA-N |
NBR |
NBR |
NBR |
|
13 |
Hexagon Bolt |
Alloy Steel |
45 |
SCM435 |
A322-4135 |
|
14 |
Bolt |
Alloy Steel |
45 |
SCM435 |
A322-4135 |
|
15 |
Hexagon Nut |
Alloy Steel |
45 |
SCM435 |
A322-4135 |
|
16 |
Hexagon Nut |
Carbon Steel |
45 |
S45C |
A576-1045 |
|
17 |
Nut Cover |
BUNA-N |
NBR |
NBR |
NBR |
|
18 |
Locking Screw |
Alloy Steel |
45 |
SCM435 |
A322-4135 |
|
19 |
Flat Key |
Carbon Steel |
45 |
S45C |
A576-1045 |
Related products
-
DL Series flanged concentric butterfly valve
Description: DL Series flanged concentric butterfly valve is with centric disc and bonded liner,and have all same common features of other wafer/lug series,these valves are featured by a higher strength of the body and better resistance to pipe pressures as safey factor. Having all same common features of the univisal series. Characteristic: 1. Short Length pattern design 2. Vulcanised rubber lining 3. Low torque operation 4. St...
-
DC Series flanged eccentric butterfly valve
Description: DC Series flanged eccentric butterfly valve incorporates a positive retained resilient disc seal and either an integral body seat. The valve has three unique attributes: less weight, more strength and lower torque. Characteristic: 1. Eccentric action reduces torque and seat contact during operation extending valve life 2. Suitable for on/off and modulating service. 3. Subject to size and damage, the seat can be repai...
-
TWS Air release valve
Description: The composite high-speed air release valve are combined with two parts of high-pressure diaphragm air valve and the low pressure inlet and exhaust valve ,It has both exhaust and intake functions. The high-pressure diaphragm air release valve automatically discharges the small amount of air accumulated in the pipeline when the pipeline is under pressure. The low-pressure intake and exhaust valve can not only discharge...
-
AH Series Dual plate wafer check valve
Description: Material list: No. Part Material AH EH BH MH 1 Body CI DI WCB CF8 CF8M C95400 CI DI WCB CF8 CF8M C95400 WCB CF8 CF8M C95400 2 Seat NBR EPDM VITON etc. DI Covered Rubber NBR EPDM VITON etc. 3 Disc DI C95400 CF8 CF8M DI C95400 CF8 CF8M WCB CF8 CF8M C95400 4 Stem 416/304/316 304/316 WCB CF8 CF8M C95400 5 Spring 316 …… Feature: Fasten Screw: Effectively prenvent the shaft from traveling,prevent valve work from failing and end from leaking. Body: Short face to f...
-
TWS Flanged Y strainer According to DIN3202 F1
Description: TWS Flanged Y Strainer is device for mechanically removing unwanted solids from liquid, gas or steam lines by means of a perforated or wire mesh straining element. They are used in pipelines to protect pumps, meters, control valves, steam traps, regulators and other process equipment. Introductioin: Flanged strainers are main parts of all kinds of pumps, valves in the pipeline. It is suitable for pipeline of norminal pressure<1.6MPa. Mainly used to filter dirt, rust and other ...
-
EZ Series Resilient seated OS&Y gate valve
Description: EZ Series Resilient seated OS&Y gate valve is a wedge gate valve and Rising stem type, and suitable for use with water and neutral liquids (sewage). Material: Parts Material Body Cast iron,Ductile iron Disc Ductilie iron&EPDM Stem SS416,SS420,SS431 Bonnet Cast iron,Ductile iron Stem nut Bronze Pressure test: Nominal pressure PN10 PN16 Test pressure Shell 1.5 Mpa 2.4 Mpa Sealing 1.1 Mp...
