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V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

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V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

China V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control supplier
V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control supplier V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control supplier V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control supplier

Large Image :  V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Product Details:

Place of Origin: China
Brand Name: LINUO
Model Number: RV series V ball valve

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: Negotiable
Packaging Details: Wooden packing
Delivery Time: 5-30 days upon order quantity
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 50 set / 30 days
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Detailed Product Description
Material: Stainless Steel DN: 20、25、32、40、50、65、80、100、125、150、200、250、300、400、450、500、600、700.
PN: 1.0,1.6,2.5,4.0,6.4(Mpa)ASME150,300LB. Temperature Range: -40~120 (normal Temperature); -40~230 (medium Temperature); -40~425 (high Temperature)

RV series V ball valve

  It is a kind of advanced control valve with right angle rotation. It is mainly used as a regulating valve or as an on-off valve. The v-type spool is designed with a special shape of the v-notch, so it has a large shearing force and self-cleaning function, especially suitable for the control of media containing fibers or tiny solid particles. Therefore, this product is widely used in the chemical, biochemical, petroleum, polysilicon, chemical fiber, pharmaceutical, environmental, paper and other industrial sectors of the automatic control system.

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Design feature

Valve body

  The valve body is designed in one piece to avoid leakage that may occur in the middle flange connection.

Valve stem

  The outer circle is made of coreless grinding, and the friction coefficient between the filler and the packing is small. The valve stem and the valve core are splined, which has good neutrality and large bearing torque. The spline connection effectively eliminates the matching clearance between the valve stem and the valve core, and improves the adjustment precision of the valve.

Self-lubricating bearing

  The upper and lower valve stems are fixed by self-lubricating bearings, which have high rotation precision and good rotation stability. Make the valve run smoother.

Sealing bonnet

  The side-mounted sealing bonnet design makes valve maintenance more convenient.

Spool

  Designed with a V-shaped notch with a special shape, the valve has an approximately equal percentage of flow characteristics. At the same time, the shear force and friction between the valve core and the sealing seat will be great during the movement, especially suitable for applications where the medium is viscous, fiber and solid particles are included. A small flow spool and noise reduction spool are also available.

Vavle seat

  The wave spring is pre-tightened, so that the sealing seat is always in close contact with the valve core, and the sealing performance is good, which can automatically compensate the wear of the seal in long-term use.

 

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Parts List

 

Nunber Name Quantity(Piece) Material
1 Valve body 1 WCB,CF8,CF8M
2 Spool 1 CF8,CF8M+Hard chromium plating or spray welding Stelle
3 Rear stem 1 17-4PH SS316
4 Cylindrical pin 2 SS304,SS316
5 Front stem 1 17-4PH, SS316
6 Spline 1 17-4PH ,SS316
7 Flat key 1 SS304,45#
8 Rear gland 1 CF8,CF8M
9 O-ring 1 Fluororubber
10 Adjustment mats 1 PTFE
11 Self-lubricating bearing 1 Composite material
12 Self-lubricating bearing 1 Composite material
13 Packing A group PTFE
14 Packing gland 1 CF8
15 O-ring 1 Fluororubber
16 Seal seat 1 SS304,SS316+Hard chromium plating or spray welding Stelle
17 Wave spring 1 17-4PH ,X-750
18 Seal seat cover 1 Q235,SS304,SS316
19 Socket head cap screws 4 SS304
20 Hexagon screw 4 SS304
21 Double head screw 2 SS304
22 Hex nuts 2 SS304

 

Technical Parameters

Nominal diameter

Clip type DN:20,25,32,40,50,65,80,100,125,150,200,250.

Flange type DN:20,25,32,40,50,65,80,100,125,150,200,250,300,400,450,500,600,700.

Nominal pressure (PN): 1.0,1.6,2.5,4.0,6.4(Mpa)ASME150,300LB.

Temperature range: -40~120 (normal temperature); -40~230 (medium temperature); -40~425 (high temperature)

Structural length standard:The clip type is according to the manufacturer's standard.

                                             Flange type according to ISA S75.04 and IEC/DIN 534-3-2 standards.

Pressure test:The shell test pressure is 1.5 times the nominal pressure. The seal test is 1.1 times the nominal pressure. The test medium is water.

Leakage: Metal-sealed seat media tested in the direction of the arrow to meet Class F of the ISO5208 seal rating, equivalent to the ANSI/FCI0.2IV x 1/100 standard. See the table below for details.

 

Maximum allowable leakage

DN(mm) Metal seat Soft seat
25 1.5ml/min 0.15ml/min
32 1.9ml/min 0.19ml/min
40 2.4ml/min 0.24ml/min
50 3.0ml/min 0.30ml/min
65 3.9ml/min 0.39ml/min
80 4.8ml/min 0.48ml/min
100 6.0ml/min 0.60ml/min
125 7.5ml/min 0.75ml/min
150 9.0ml/min 0.90ml/min
200 12.0ml/min 1.20ml/min
250 15.0ml/min 1.50ml/min
300 18.0ml/min 1.80ml/min
350 21.0ml/min 2.10ml/min
400 24.0ml/min 2.40ml/min
450 27.0ml/min 2.70ml/min
500 30.0ml/min 3.00ml/min
600 36.0ml/min 3.60ml/min
700 42.0ml/min 4.20ml/min
 

The inherent flow characteristics of the V-type regulator are equal percentage characteristics as shown.

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

 

Valve rated CV value

Nominal diameter Rated CV Nominal diameter Rated CV
DN25 27 DN200 1860
DN32 47 DN250 2900
DN40 70 DN300 4320
DN50 135 DN350 6640
DN65 210 DN400 8000
DN80 390 DN450 10000
DN100 560 DN500 12200
DN125 790 DN600 17270
DN150 1130 DN700 25000

 

Valve maximum allowable differential pressure and torque

DN(mm) Clip type Flange type Torque (N,M)
Maximum closing pressure difference Maximum control pressure difference Maximum closing pressure difference Maximum control pressure difference    
(bar) (bar) (bar) (bar) 16(bar) 40(bar)
25 50 35 40 35 25 48
32 50 35 40 35 25 55
40 50 35 40 35 30 60
50 50 35 40 35 35 70
65 50 35 40 35 60 140
80 50 35 40 35 80 224
100 40 25 40 25 140 315
125 40 25 40 25 160 480
150 40 25 40 25 220 930
200 35 25 40 25 350 1830
250 35 20 40 20 660 3125
300     40 20 1200 4000
350     40 20 1700 6120
400     40 20 2600 8030
450     40 20 3500 12000
500     30 10 3800 15000
600     30 10 6600 20500

Note: 1. The torque provided in the table is the torque at this pressure, which is based on the torque of the metal seat at normal temperature.

2. We recommend multiplying the safety factor by 1.3 times when selecting the actuator. The valve torque will vary with the medium and temperature.

 

Seat seal structure

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Metal sealing seat                      Soft sealing seat                       High temperature metal sealing seat

No. Item Temperature℃ No. Item Temperature℃ No. Item Temperature℃
1 Seal seat cover

-40℃~160℃

-40℃~230℃

 

1 Seal seat cover

-40℃~160℃

 

1 Seal seat cover

-40℃~425℃

 

2 Wave spring 2 Wave spring 2 Wave spring
3 O-ring 3 O-ring 3 Pressure ring
4 Vavle body 4 Vavle body 4 Seal ring
5 Seal seat 5 Seal seat 5 Seal seat
6 Spool 6 Seal ring 6 Vavle body
    7 Spool 7 Spool

 

Spool structure

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Small flow spool

  A wide range of small CV values are available for valves with a nominal diameter of 20 mm or 25 mm for precise control of small flows. It is ideal for control of some additives and coatings in the paper industry.

Noise reduction spool

  In control valve applications, there are limits to the control valve noise in some cases. In practical applications, when some special sections use conventional valves, it is easy to exceed the standard, especially in gas and steam applications. Water and other liquids will cavitation in high pressure differential environments, damaging the piping system and will have a significant impact on valve life and accuracy. This spool can be used to solve it.

 

Actuator mounting orientation

V Type Parker Instrumentation Ball Valves RV Series Proportioning Water Control

Pneumatic V-type ball valve with Z series actuator standard factory direction as shown in Figure A. If there is an installation space limit, you can choose another three orientations.

 

Application

Pulp and fiber control in the paper industry

Slurry control in the biochemical industry

Powder and hard particle fluid control

Various flow control and pressure control

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