Selection of electric fixed ball valve

NegotiableUpdate on 05/19

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Overview

The selection of electric fixed ball valves is suitable for situations where two positions are cut off and adjusted. The connection between the valve and the actuator adopts a direct connection method. The electric actuator has a built-in servo system and does not require a separate servo amplifier. It can control the operation by inputting a 4-20mA signal and a 220VAC power supply.

Product Details

Selection of electric fixed ball valveSuitable for situations where two are cut off or adjusted. The connection between the valve and the actuator adopts a direct connection method. The electric actuator has a built-in servo system and does not require a separate servo amplifier. It can control the operation by inputting a 4-20mA signal and a 220VAC power supply. It has the advantages of simple connection, compact structure, small size, light weight, low resistance, stable and reliable action. The actuator can be configured with electronic electric actuators such as UNIC, PSQ, HQ, DHL, or pneumatic piston actuators such as GTX and AL according to user requirements.

Two point and three section fixed ball valves, also known as measuring and installing split ball valves, divide the valve body into asymmetric left and right halves along a section perpendicular to the valve channel axis. They are mainly used in pipelines to cut off, distribute, and change the direction of medium flow. Its pivot structure ensures accurate positioning of the sphere. The standard valve seat adopts a spring structure, which pushes the valve cover towards the sphere, ensuring good low-pressure sealing performance. The ball valve has a bi-directional sealing feature, where both the front and rear valve seats can be sealed. With the built-in discharge valve, the valve body cavity can be discharged outward. The pivot adopts anti blowout protection structure, low friction coefficient bearings, etc. It has the advantages of excellent performance, high reliability, wide applicability, and reasonable price.

Selection of electric fixed ball valveSuitable for industries such as chemical, petroleum, natural gas, metallurgy, as well as natural gas long-distance pipelines containing hydrogen sulfide media, high impurities, and severe corrosion.

execution standard
1. Design and Manufacturing: GB12237-89, API608, API 6D, JPI 7S-48, BS5351, DIN3357.
2. Flange size: JB/T74～90（JB74～90）、GB9112～9131、HGJ44～76、SH3406、ANSI B16.5、JIS B2212～2214、NF E29-211、DIN2543。
3. Structural length: GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202.
4. Main test for inspection: JB/T 9092, API 598.

Specification parameters of electric ball valve

Technical parameters of CH series actuator		Valve body parameters
power supply	AC200/220V，50/60Hz	Nominal Diameter	DN10～300mm
output torque	50N·M～2000N·M	Nominal Pressure	PN1.6 2.5 4.0 6.4 31.5MPa（定制）
Action range	0～90° 0～360°	leakage	Soft seal: zero leakage	Hard seal: ≤ 10-5 of rated flow rate
Action Time	15 seconds/30 seconds/60 seconds	actuator	Can also be equipped with PSQ, HQ, UNIC, 361RS and other series Electronic electric actuator
protective device	overheat protection	flow characteristics	Quick opening feature
ambient temperature	-30°～60°	adjustable range	DN50-80	DN100-800-1200
ambient temperature	-30°～60°	adjustable range	250:1	350:1
manual operation	Comes with a handle for operation	basic error	±1%
limit	Electrical and mechanical dual limit	dead zone	≤1%
Protection level	Equivalent to IP-65	backlash	≤1%
Position measurement	Optional switch or potentiometer	Applicable Temperature	sealing surface
drive motor	8W/E		PTFE≤150℃ RTFE≤180℃ PPL≤300℃ Hard seal ≤ 450 ℃
Incoming interface	PE1/2 "incoming line lock		PTFE≤150℃ RTFE≤180℃ PPL≤300℃ Hard seal ≤ 450 ℃

Technical parameters and performance

Test pressure （Mpa）	Nominal pressure (Mpa)					Pressure level (class)			JIS（Mpa）
Test pressure （Mpa）	1.6	2.5	4.0	6.4	10.0	150	300	600	10K	20K
strength test	2.4	3.8	6.0	9.6	15.0	3.1	7.8	15.3	2.4	3.8
Sealing Test	1.8	2.8	4.4	7.0	11.0	2.2	5.6	11.2	1.5	2.8
airtightness test	0.5～0.7

Main component materials

Part Name	material
valve body	WCB	ZG1Cr18Ni9Ti	CF8 （304）	CF3 （304L）	ZG1Cr18Ni12Mo2Ti	CF8M（316）	CF3M （316L）
Sphere, valve stem	2Cr13	1Cr18Ni9Ti	0Cr19Ni9 （304）	00Cr19Ni11 （304L）	1Cr18Ni12Mo2Ti	0Cr17Ni12Mo2 （316）	00Cr17Ni12Mo2 （316L）
sealing ring	Polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para polystyrene flexible graphite
Applicable Medium	Water, gas, steam, oil, etc	Corrosive media such as nitric acid		Strong oxidizing medium	Acetic acid and other corrosive media		Corrosive media such as urea