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The 30D13Y 30D13R Pilot-operated (Before Valve) Pressure Control Valve

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Zhejiang Jinfeng Automatic Meter Co.,Ltd.
[China]

Address
609ROOM,2#Yinghua International Plaza, Guangfu Road,Putuo District ,Shanghai China Shanghai Shanghai
Phone
86-21-52805955
Contact name
ZOE TAO

Quick Information

  • Place of Origin: China

Description

Summary
The 30D13Y/30D13R  pilot-operated (before valve) pressure control valve is composed of the
control valve ,pilot and actuator. It is suitable for controling differential pressure in the pipes of
non-crrosive   liquids, gases and steams. when the diferential pressure rises, the control valve is
opened The main features are as follows:
1.It has the pressure balancing function with high sensitivity.
2.Low noise, reliable performance, free of maintenance
3.The standard modular design is adopted.
4.High control precision
Body

DN 15、20、25、32、40、50、65、80、100、125、150、200、250mm
PN Class150、300
Flange standard ANSI、JIS、DIN GB JB(special standards can be offered according to user requirements)
Body material WCB、CF8、CF3、CF8M、CF3M
Plug material Hard seal Stainless steel (304、316、316L)
Soft seal Stainless steel embedded with rubber ring
Pressure balancing Stainless steel bellows (DN15~125), balanced diaphragm (DN150~250)
Actuator
Effective area (cm2) 250
Pressure setting range 0.01~0.12  0.08~0.25   0.2~0.5  0.45~1  0.6~2.0
Minimum differential pressure that ensures normal work of the pressure valve DN15~125为0.08    DN150~250为0.1
Allowable maximum differential pressure between the upper and lower diaphragm chambers 0.4
Material galvanized steel sheet; diaphragm:
EPDM or FKM with fiber
Control pipeline connection   Copper pipe o r steel pipe Φ10X 1(mm);
ferrule connect ion: R1/4"
Note:  ※T he pressure setting range corresponding to the effective area does not apply to valves with DN150-250.  
Performance
Set value error ±4%
Allowable leakage (under stipulated testing conditions)  Hard seal 4×0.01% valve rated capacity
Soft seal DN15~50 DN65-DN125 DN150~250
10 bubbles/ min 20 bubbles/min 40 bubbles/min

Structural figure
1Body 2Seat 3 Stem 4 Before-valve pressure P1 pipe 5 Balanced bellows  6Travel indicator 7 Diaphragm  8 Spring
9 Operating pressure Ps pipe 10After-valve pressure P2 pip 11 Pilot  12 Pilot plug 13Spring  14 Bellows 15 Adjusting screw 16 Adjustable needle valve
Allowable working temperature
DN 15~125mm 150~250mm
seal type   Hard seal ≤150℃                            ≤140℃
Cooling tank≤200℃ Cooling tank and extension ≤200℃
Cooling tan k and heat sink ≤350℃※             Cooling tank and extension ≤300℃※
Soft seal ≤150℃
Note: ※It indicates the allowable working temperature is valid only when the medium is steam
Rated flow coefficient, noise measuring coefficient, allowable differential pressure
DN 15 20 25 32 40 50 65 80 100 125 150 200 250
Rated flow coefficient 4 6.3 8 16 20 32 50 80 125 160 280 320 450
Noise measuring coefficient Z value 0.6 0.6 0.6 0.55 0.55 0.5 0.5 0.45 0.4 0.35 0.3 0.2 0.2
Allowable differential PN16 1.6 1.5 1.2 1
pressure (Mpa) PN40 2
Working principle
After throttling by the plug and seat, the before-valve pressure P1 of the process medium is changed into the after-valve pressure P2. Through the control pipeline, P1 is input to the upper diaphragm chamber of the actuator and acts on the top disc. The acting force produced balances the reacting force of the spring, determining relative positions of the plug and seat and controlling the before-valve pressure. W hen the before-valve pressure P1 increases, the acting force of P1 that acts on the top disc will increase accordingly. At the time, the acting force on the top disc is higher than the reacting force of the spring to make the plug move away from the seat, until the acting force on the top disc balances the reacting force of the spring. At the time, the flow area between the plug and seat is increased, the flow resistance becomes lower and P1 is reduced to the set value. Likewise, when the before-valve pressure P1 decreases, the acting direction is reverse to the above. This is the working principle during the control of before-valve pressure. When it is necessary to change the set value of before-valve pressure P1, please adjust the adjusting nut.    

I. Dimensions and weight of control valve
DN (mm) 15 20 25 32 40 50 65 80 100 125 150 200 250
L  (mm) 130 150 160 180 200 230 290 310 350 400 480 600 730
B  (mm) 212 212 238 238 240 240 275 275 380 380 326 354 404
Weight (Kg) 6.2 6.7 9.7 13 14 17 29 33 60 70 80 140 220
B1(mm) 630 855 1205
Weigh(Kg)  140 210 300

II. Dimensions and weight of actuator
Effective area (cm )  250
R   (mm) 263
H   (mm) DN15~125 150    DN150~250 440
Weight(Kg)  18 22
 
 
 
 
 
 
 


Certificates

  • CE : 1521

Price

  • Price Condition : FOB
  • Price : USD50 / pieces
  • Delivery Port : shanghai

Packaging & Delivery

  • Packing :1 pieces per box
  • Delivery Lead Time : 15 days
  • Minimum Order : 1 pieces

Product Image

  • The 30D13Y 30D13R Pilot-operated (Before Valve) Pressure Control Valve image

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