Pneumatic thin gate valve
key word：Heat exchange element
Category:
Product description
1. Introduction
1.1. Purpose
The pneumatic thin gate valve is mainly used for regulating the flow of ash and slag in the dry ash system of thermal power plant, as well as the opening and closing of wear and corrosion dust media in mines and cement plants.
1.2. Model meaning
KRZ71-**
KRZ71 abbreviation of pneumatic thin gate valve
** -------- inlet and outlet diameter (mm)
1.3. Structural features
1.3.1. The main body of pneumatic thin gate valve is composed of cast steel, 304 stainless steel and graphite sealing ring.
1.3.2. It has the advantages of good sealing performance, high temperature resistance, high pressure resistance, flexible opening and closing, less ash jamming and dust accumulation, long service life, etc.
2. Specifications and performance
The specification and performance of pneumatic thin gate valve are shown in table 18-1
Table 18-1 specification and performance of pneumatic thin gate valve
| Model | KRZ71-50 | KRZ71-80 | KRZ71-100 | KRZ71-150 | KRZ71-200 |
| Nominal diameter | DN50 | DN80 | DN100 | DN150 | DN20 |
| Valve nominal pressure | PN1.0 | ||||
| Nominal pressure of actuator (MP) | 0.4~0.6 | ||||
| Material temperature (℃) | ≤400 | ||||
3. Equipment appearance and structural dimensions
See Fig. 18-1 for equipment outline and table 18-2 for structure dimension of pneumatic thin gate valve.
Table 18-2 structural dimensions of pneumatic thin gate valve mm
| Diameter | Connection size (D) | D1 | D2 | L | H | n-∮d |
| DN50 | 165 | 125 | 100 | 50 | 260 | 4-∮18 |
| DN65 | 185 | 145 | 120 | 50 | 270 | 4-∮18 |
| DN80 | 200 | 160 | 135 | 58 | 290 | 4-∮18 |
| DN100 | 220 | 180 | 155 | 58 | 335 | 8-∮18 |
| DN125 | 250 | 210 | 185 | 58 | 435 | 8-∮18 |
| DN150 | 285 | 240 | 210 | 63.5 | 515 | 8-∮23 |
| DN200 | 340 | 295 | 265 | 76 | 625 | 8-∮23 |
| DN250 | 395 | 350 | 320 | 76 | 725 | 12-∮23 |
| DN300 | 445 | 400 | 368 | 81 | 975 | 12-∮23 |
Remarks: n is No.s of bolts
