Shanghai, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components
Main Markets:
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, ...
Terms of Payment:
T/T, Western Union
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Arc Valve, Pump Protection Valve, Low Pessure Arc Valve manufacturer / supplier in China, offering Low Pessure Arc Valve (YCAT), Electric Segemnted Ball Valve, Pneumatic Segemnted Ball Valve and so on.

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Low Pessure Arc Valve (YCAT)

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Min. Order / Reference FOB Price
1 Piece US $5-100/ Piece
Port: Shanghai, China
Production Capacity: 10000/Month
Payment Terms: T/T
Certification: ISO, CE
Temperature: Ordinary Temperature
Connection: Flange
Valve Seat: Single-Seat
Structure: Automatic Recirculation
Material: Stainless Steel

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Basic Info

Model NO.: YCAT
Valve: Pressure Reducing Valve
Size: 1"-16"
Pressure: 150lb-400lb
Suitable Medium: Water
Trademark: YI CHEN
Transport Package: Plywood Case
Specification: CE API ISO
Origin: China
HS Code: 8481804090

Product Description

Low Pessure Arc Valve (YCAT)
Low Pessure Arc Valve (YCAT)
Low Pessure Arc Valve (YCAT)
YI CHEN Automatic Recycle valve 
YCAT series Automatic Recycle valve is a kind of pump protection device. It automatic protect centrifugal pump when pump body occur cavitation damage or unstable (especially conveying hot water at low load operation medium). Once pump flow is lower than the preseted flow, bypass can completely open to ensure the minimum required flow pump. Even running fully closed, namely running flow is zero, the minimum flow can also pass bypass for Automatic Recycle. Pressure reduced through the multistage bypass pressure reducing valve.
YCAT series has big bypass, and this valve is suitable for bypass with big flow, maximum pressure differential is 4MPa, specific choice is determined by factory.
  Simple structure, operation reliable and stabile, with few movement parts.
  Be easy for installation, can be installed vertically or horizontally on pump pressure outlet.
  Bypass flow is large, maximum flow is 60% of main flow, KV value can be adjusted.
  Maximum bypass operating pressure differential is 4MPa. Bypass non-return function is optional.
  Applicable medium including: water, oil, methanol and other liquid medium.
Working temperature is from -196ºC to +300 ºC.
Diameter and pressure range
Valve body type:  three-way casting valve
Nominal diameter: DN25, 32, 40, 50, 65, 80, 100, 200, 250, 300, 350, 400
Nominal pressure: PN 16, 25, 40, 64, Class 150, 300 L, etc.
Connection type: flange FF, RF, RTJ, BW, SW etc .
Material temperature range
Body material
Sealing material
SS winding gasket-20~+300-40~+300-196~+300-196~+300

Model NO.
YCATNominal pressureBody materialMain
/Bypass diameterStructure type 
Auto recirculation pump protection valveT type bypass assemblyPN16=PN16
V=vertically mounted
H=Horizontally mounted
Z=Bypass non-return
D=With discharge mouth
Such as: T type Automatic Recycle valve, pressure is PN40, body material is WCB, main diameter DN50, Bypass diameter DN 25, vertically mounted, Model: YCAT-PN40-C-50/25-V
Working principle
According to the difference of inductive main flow, main valve disc check cone of Automatic Recycle valve will automatically move to a certain position. At the same time the main valve disc drive bypass valve stem, transfer the movement of main valve disc to bypass, through control bypass valve disc position, change bypass throttling area, so as to control bypass flow. When main valve disc back into valve seat closed, all flow backflow through bypass. When mian valve disc to rise to top position, bypass is fully closed, all the flow of pump flow to process system. This valve set four functions in one body.
  Flow perception: Automatic Recycle valve main valve disc can automatically perceive main flow of process system, thereby according to the flow to determine position of mian valve disc and bypass disc.
  Recirculation control: Automatic Recycle valve can inhaled pump normal operation required minimum flow into storage device through bypass, so as to adjust pump H - Q characteristics, to realize recycling.
  Bypass multistage pressure reducing: bypass control system can reduced the backflow medium from high-pressure pump outlet to appropriate backflow to low-pressure storage device with low noise and small wear.
  Check: Automatic Recycle valve also has check valve effect, preventing the liquid backflow to pump body. Bypass non-return function is optional.
  Special bypass size can be customized. The max flow rate of bypass is subject to the max Kv value.
Valve sizemm253240506580100125150200250300
Max main flowm3/h1228305010011420040045575012501650
Bypass sizemm152020254040508080100100150
Max bypass KvCv2.

Parts and material
2Recycle disc2Cr1330412Stud bolt450Cr18Ni9
3Recycle seat2Cr1330413Hex nut350Cr18Ni9
4Screw gland2Cr1330414BonnetWCBCF8
5O ringEPDMEPDM15Guide block2Cr13304
6Main disc2Cr13+STL304+STL16Bushing2Cr13304
7O ringEPDMEPDM17Porous set2Cr13304
8Gasket2Cr1330418End ring2Cr13304
9Hexagon nut30430419Spring 260Si2Mn1Cr18Ni9Ti

1.Q: What is your main market?
A: Our main market is North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe.
2.Q: Are there products standard?
A: Our model is standard, if you have specific demand, pls tell us.
3.Q: Do you have interest to do our own design items?
 A: Absolutely! It's our pleasure.

Our Services
1)Our advantage:
 We are the manufacturer with almost 20 years experience on valves. Best price,quality and service, Also we can control the production status. Shanghai YI CHEN team with strong ability in designing and after sell service. Cooperation with Carrier has improved our quality to a new level.
2)Terms of payment: T/T, L/C, Western union.
3)Shipment: average 20-25days after receiving deposit.
4)Delivery:  Shanghai/Ningbo ,by sea or air.
5)Gurantee: One year since delivery.
6)Inspection: 100% testing for all the valves.
Welcome to choose SHANG HAI YI CHEN , we are always ready!

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