Double/Single Acting Spring Return Rack & Pinion Rotary Pneumatic/Air Actuator for Ball/Butterfly Valve, Alluminum/Stainless Steel Body

• Material: Stainless Steel
• Usage: Automation and Control
• Structure: Piston Cylinder
• Power: Pneumatic
• Standard: Standard
• Pressure Direction: Single-acting Cylinder
• Model NO.: HZQD
• Trademark: HUIZHENG
• Origin: Wenzhou/China
• HS Code: 8481804090
• Production Capacity: 100000PCS/Year

Product Description

Features:
1. Quarter turn operation with two independent adjustment stops
2. High precision pinion to ISO5211, DIN3337, NAMUR standards
3. Durable hard anodized die cast aluminum body and cover
4. Hard oxidation cast aluminum piston
5. Low friction and long life replacable piston ring
6. High visibility mechanical position indicator conforms to the VID/VIE 3845 Numar standard, easy for installing limit switches and other accesories.
7. ISO 5211 valve mounting pad
8. Double acting and spring return available
9. Corrosion resistance - 1000 hour minimum salt spray test

Description
Rack and pinion air actuators are typically used to operate quarter turn ball valves, butterfly valves, plug valves and dampers. Double acting actuators use air pilot pressure to open and air pilot pressure to close. The pilot air is typically controlled by a 4-way or 5-way type manual or solenoid valve.
An optional pilot solenoid valve can be mounted directly to the side of the actuator using the standard Namur interface saving time, space and plumbing. The solenoid valve when supplied with the required pilot air pressure will allow electrical operation of the actuator.
The hard anodized body and internals together with piston guides and bearings assure high-cycle life and efficiency.

 

number	name	material treatment
1	Indicator screw	Plastic
2	Indicator	Plastic
3	Circlip	Stainless steel
4	Washer	Stainless tin
5	Outer gasket	Engineering plastics
6	Cylinder block	cast aluminium
7	Inner gasket	Engineering plastics
8	Cam	Alloy steel
9	Upper shaft bearing	Engineering plastics
10	Upper shaft. Circle	rubber
11	Toothed shaft	Alloy steel
12	Lower shaft bearing	Engineering plastics
13	Lower shaft. Circle	rubber
14	Plug	rubber
15	Adjusting screw. Circle	rubber
16	Adjust the bursting nut	Stainless steel
17	adjusting bolt	Stainless steel
18	Piston	Cast aluminum/cast steel
19	Piston guide plate	Engineering plastics
20	Piston bearing	Engineering plastics
21	Pistons. Circle	rubber
22	Spring	Spring steel
23	End cap ring	rubber
24	End cap	cast aluminium
25	End cap bolt	Stainless steel
26	Limit bolt	Stainless steel
27	Limit nut	Stainless steel

  




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