Covna Electric Steam Temperature Control Valve Flow Control Valves Gas Pressure Reducing Valve

• Temperature: -20~450
• Media: Water
• Power: Electric
• Adjustment Range: 0-120
• Standard or Nonstandard: ANSI GB
• Warranty: 1 Year
• Model NO.: ZZWPE
• Port Size: DN25~300, Nps 1"~ 12"
• Pressure: Pn16 ~ 100,150lb ~ 600lb
• Customized Support: OEM
• Product Name: Electric Temperature Control Control Valves
• Structure: Control
• Application: General
• Valve Seat Material: 304/316/316L(Overlaying Stellite Alloy)
• Filler: Ptft/Flexible Graphite
• Body Material: Wcb/Wcc/Wc6/CF8/CF8m/CF3m
• Control Valve Stem: 2Cr13/17-4pH/304/316/316L
• Certificate: CE,RoHS,ISO9001
• Trademark: COVNA
• Origin: Guangdong, China

Product Description

Product Description

Feature of ZZWPE Type Electric Steam Temperature Control Valve

Electric steam temperature control valve is composed of electric control valve, temperature controller and thermocouple.

Electric steam temperature control valve can choose single seat or cage guided seat according to the work pressure, and different material is optional according to the working temperature.

Electric temperature control valve adopts the top guide structure, compact structure, S streamlined fluid path, large flow, small pressure differential loss, wide adjustable range and accurate temperature control.

Body/Bonnet	WCB/WCC/WC6/CF8/CF8M/CF3M
Valve spool/Seat	304/316/316L(overlaying stellite alloy)
Packing	Normal:-196150 is PTFE,RTFE,>230 is flexible graphite
Bellows	304/316/316L
Gasket	Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
Control valve stem	2Cr13/17-4PH/304/316/316L
Electric temperature control valve Flow characteristic	Linear, percentage, quick open
Allowable range	50: 1 (CV<6.3 30: 1)
Rated Cv value	Percentage CV1.6~630 linear CV1.8~690
Electric temperature control valve Allowable leakage	Metal seal: IV grade0.01% rated capacity
		Soft seal: VI gradefoam grade
		Leakage standard: GB/T 4213
Electric steam temperature control valve Performance
Intrinsic error (%)	±1.0
Return difference(%)	≤1.0
Dead zone(%)	≤1.0
Difference from beginning to end point(%)	±2.5
Rated travel difference(%)	≤2.5

 

Characteristic of Small Electric Actuator

 

 

Product Parameters

 

 

Installation instructions

 

Process Chart:

Actuator Parameters

 

Electric temperature control valve Type\ Method	Electric actuator
		3810L series
		Intelligent integrated type
Usage	Regulating
Air supply pressure or Power supply voltage	Power: AC 200V±10% 50Hz
		Or Power: AC 380V±10% 50Hz
Connector	Normal type: cable inlet 2-PF(G1/2)
		Explosive proof: Protection jacket PF(G3/4)
Direct action	Input signal increase, stem descend, valve close.
Reaction	Input signal increase, stem ascend, valve open.
Input signal	Input/output420mA.DC
Lag	≤0.8%FS
Linear type	≤+1%FS
Environmental temperature	Standard type: -10+60
		With space heater : -35+60
		Explosive proof: -10+40
Electric temperature control valve Accessories	Space heater (normal type)
		Non-standard accessories, need special customized notes.

Applications

Buyer Feedback

Company Profile

Company strengths:

COVNA-Specialized Manufacturer of High Quality Actuated Valve for 22 Years.

German imported manufacturing facilities, 100% Q.C passed before shipping, quality assured.
Extensive flow control project experience and various product solutions can beoffered.
OEM / ODM service available. Can do JIS 5K / 10K, ANSI 150lb / 300lb / 600lb / 900lb standardOffer various
international standard, ANSI, JIS, DIN, etc.
German imported manufacturing facilities, 100% Q.C passed before shipping, quality assured.
Inquiry will be replied within 8 hours.
Custom complaints handed by one stop professional service.
ISO 9001certificated, with extra certifications include CE, TUV, RoHS, SGS, BV, explosion & fire safe.
Industrial standard 1 year (12 months) warranty.
On time delivery, comprehensive warranty service, consultation to after-sales service in place.

Factory Strength:

Exhibition&Finished Project

Project of Motorized Valve

 

Project of Pneumatic Actuated Valve

 

Project of Solenoid Valve

 

Packaging & Delivery

FAQ

1. Which voltage of the electric actuator?
DC24V, AC24V, AC110V, AC220V
AC380V can be customized and DC12V is available for some smaller torque of actuator.

2. What is the actuation time for electric actuator?
It depends on the torque of actuator.
The detailed timing would be as the following:
·COVNA-05(50Nm)-20 seconds
·COVNA-10(100Nm)/COVNA-16(160Nm)-25 seconds
·COVNA-30(300Nm)/COVNA-60(600Nm)-60 seconds
·COVNA-125(125Nm)/COVNA-250(2500Nm)/COVNA-400(4000Nm)-100 seconds.

3. Can the actuation time be faster?
Electric actuator can be customized the quick actuation gear,
the soonest actuation time can be reach 10 seconds to open and close.

4. What type of electric actuator you provide?
ON/OFF type, Regulation type and Intelligent type.

5. What is the difference from ON/OFF type, Regulation type and Intelligent type?
1)ON/OFF type
ON/OFF type is fully open and fully closed.

2)Regulation type
1.With input/output signal:4-20mA or 0-10V;
2.Opening position of valve can be adjusted by signal;
3.Available for PLC system.

3)Intelligent type
1.With input/output signal:4-20mA or 0-10V;
2.Opening position of valve can be adjusted by signal;
3.Available for PLC system.
4.With display screen to acheieve site control.

6. Can this electric valve be resettable (normally open / closed) automatically when power is removed?
Our regular electric actuator can't be resettable automatically while power-off.
But it can go to the multiturn electric actuator model with the extra electrical storage device along,
which acheieve the valves can be automatic reset(normally closed) while power failure.

7. Have the electric actuator had the presence of limit switches (contact about the position of the cut-off device)?
Yes, there is the position indicator on the top of actuator.
The open/closed status can be checked visually.

8. Which type of protection class of this electric actuator?
IP65, IP68, Explosion proof.

9.Is there any manual override of electric valve?
Yes, every electric valve includes the manual override.
You can open/close

10. Have the electric valve had the limiting operating time?
Electric haven't had the limiting operating time.
It can be working for 99 hours continually without getting heating.