Plastic Ball Valves: Key to Efficiency and Stability in Piping Systems

Plastic ball valves are widely used in industrial and residential piping systems for controlling the flow of media. They are favored for their excellent corrosion resistance, lightweight, low cost, and ease of operation. Plastic ball valves are typically made from materials such as PVC (Polyvinyl Chloride), CPVC (Chlorinated Polyvinyl Chloride), PP (Polypropylene), and PVDF (Polyvinylidene Fluoride), which can withstand corrosion from a variety of chemicals, making them suitable for handling different types of fluids, including water, acids, bases, and salt solutions.

Plastic ball valves are suitable for a variety of low to medium pressure applications, especially in environments requiring corrosion resistance and chemical stability. They are extensively used in water treatment, chemical processing, agricultural irrigation, food and beverage production, swimming pool, and aquarium management, among others. Due to their simple structure and ease of maintenance, plastic ball valves also offer significant cost benefits in both installation and long-term use.

Specifications
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Specification

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886 Type Pneumatic Ball Valve
986 Type Pneumatic Ball Valve
Double Union Ball Valve

Features

Gear-driven double piston design, providing high output torque with a compact size.
Cylinder made of aluminum alloy material, resulting in a light weight and beautiful appearance.
Excellent corrosion resistance and anti-aging properties.

Table 1: Technical Parameters and Performance of 886-Type Pneumatic Ball Valve
Actuator Parameters		Valve Body Parameters
Type	Double-acting Piston Type, Spring Return Type	Nominal Diameter	DN15 – DN100
Air Supply Pressure	Double-acting: 2–8 bar Single-acting: 4–8 bar	Nominal Pressure	PN 1.0 MPa
Output Torque	Double-acting: 4–10560 N·m	Valve Stem Material	UPVC, CPVC, PP, PVDF, ABS
Output Torque	Single-acting: 7–2668 N·m	Valve Body Material	UPVC, CPVC, PP, PVDF, ABS
Operating Temperature	Normal Temperature Range: -20 °C to 80 °C (NBR O-ring)	Ball Material	UPVC, CPVC, PP, PVDF, ABS
Operating Temperature	High Temperature Range: -20 °C to 160 °C (Fluorine rubber O-ring)	Valve Seat Seal	PTFE, EPDM, FPM
Stroke Range	0° to 90° with ±5° tolerance	Temperature	UPVC < 60 °C PVDF < 140 °C CPVC < 90 °C PP < 80 °C
Interface Thread	GTD40–GTD83 / ATD50–ATD88 – G1/8"	Connection Method	Socket glue, flange, thread
Interface Thread	GTD110–GTD350 / ATD100–ATD200 – G1/4"	Applicable Media	Water and various corrosive fluids
Valve Position Signal	Positioner: 4–20 mA Feedback Signal: Fully Open or Fully Closed	Features	Compact structure, small size, light weight, easy installation

Features

Compact and beautiful appearance
Light weight, easy installation, smooth inner wall, low friction resistance
Material is hygienic, non-toxic, aging resistant, and corrosion resistant

Table 2: Technical Parameters and Performance of 986 Type Pneumatic Ball Valve
Electric Actuator Parameters		Valve Body Parameters
Power Supply	AC 110V / 220V / 380V DC 24V	Nominal Diameter	DN15 – DN100
Output Torque	30N / 50N / 100N	Nominal Pressure	PN 1.0 MPa
Optional Functions	Switch Type, Contact Type, Modulating, Intelligent Type	Valve Stem Material	UPVC / CPVC / PP / ABS
Stroke Range	0° to 90°, ±5°	Valve Body Material	UPVC / CPVC / PPH / PP / ABS
Action Time	15s / 30s / 60s	Seat Seal	EPDM / NBR / FPM / PTFE
Ambient Temperature	-30 °C to +60 °C	Temperature	UPVC < 65 °C PVDF < 140 °C CPVC < 90 °C PP < 85 °C
Manual Operation	With handle operation	Applicable Medium	Water and various corrosive fluids
Limit	Electrical and mechanical dual limitation	Features	Lightweight, Corrosion Resistant, Hygienic and Non-toxic, Low Flow Resistance
Protection Level	IP67 (Explosion-proof enclosure: Ex d II BT4 IP67 optional)	Connection Method	Socket adhesive, flange, thread
Input Signal	0–10, 1–5 V DC / 4–20 mA (Intelligent Type)
Signal Feedback	Active Signal S Passive Signal

A double union ball valve with red handle on white background.

A dimension drawing of double union ball valve with red handle.

Table 3: Size Table of Double Union Ball Valve
Nominal Diameter	d (φ)	I (mm)	H (mm)	A (mm)	L (mm)	D (mm)
DN15	φ20	20	48	85	102	53
DN20	φ25	26	53	90	116	60
DN25	φ32	28	65	105	128	71
DN32	φ40	31.5	75	116	146	83
DN40	φ50	34.5	87	128	162	95
DN50	φ63	38.5	99	140	177	116
DN65	φ75	40	128	209	229	145
DN80	φ90	64	140	204.5	292	164
DN100	φ110	59	160	209	310	188