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PRP/SW, SW pneumatic butterfly valve
The PR P/S W pneumatic butterfly valve is composed of a PR type pneumatic light and small angle actuator and an unbranded butterfly valve. The light a
Product details
I. Overview
The PR P/S W pneumatic butterfly valve is composed of a PR type pneumatic light and small angle actuator and an unbranded butterfly valve. The light and small angular actuator is designed with two pistons in one cylinder, which move in opposite directions. Its thrust is synchronously transmitted to the central gear through the rack to form torque, driving the valve shaft to rotate; This type of actuator has a compact structure, high output torque, smooth and reliable transmission, and long service life. The SW pneumatic butterfly valve consists of an S-shaped pneumatic double acting piston actuator and an open butterfly valve.
Butterfly valves have an open structure, simple structure, light weight, and reliable use; High circulation capacity, capable of controlling turbid media containing small particles.
This product has a large leakage location, so it is mainly used in situations with large diameters, low pressure differentials, and less strict leakage requirements when closed.
2： Model and specifications
| Type of executing agency | model | Temperature range for use (C °) | Specification (nominal diameter) |
| Dual action angular travel | PRPW-6、-10、16BK | Carbon steel valve body, Stainless steel valve body -25-420 |
DN80-DN1200 |
| Angular stroke single action (spring reset) | PRSW-6、-10、16BK | ||
| Direct travel double action | SW-6、-10、16BK |
Model and specification preparation instructions
3、 Main technical parameters
| Nominal Diameter DN（mm） |
rated flow Coefficient K |
Rated angle row Cheng (degree) |
Nominal Pressure PN（MPa） |
flow characteristics | mode of action | medium temperature Range (C °) |
Inherent adjustable ratio R | connection type |
| 80 | 220 | 90° 70° |
0.6 1.0 1.6 |
Approximate equivalence percentage |
Air opening type Airtight type |
stainless steel Valve body: Carbon steel valve body: -25-420 |
20:1 | Clamp on connection Clamp flange According to the standard ANSI B16.5; HG20615; HG20592 JB79-94 Or according to user requirements |
| 100 | 340 | |||||||
| 125 | 530 | |||||||
| 150 | 770 | |||||||
| 200 | 1360 | |||||||
| 250 | 2130 | |||||||
| 300 | 3060 | |||||||
| 350 | 4160 | |||||||
| 400 | 5450 | |||||||
| 450 | 6900 | |||||||
| 500 | 8500 | |||||||
| 600 | 12200 | |||||||
| 700 | 16600 | |||||||
| 800 | 21700 | |||||||
| 900 | 27100 | |||||||
| 1000 | 34000 | |||||||
| 1200 | 49600 |
Other technical parameter indicators,Download to view
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