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By certification 
Q61F three-piece welded ball valve is suitable for various types of PN1.0～6.4MPa, working temperature -29～180℃ (the sealing ring is reinforced PTFE) or -29～300℃ (the sealing ring is para-polyphenylene). On the pipeline, it is used to cut off or connect the medium in the pipeline. Different materials are selected, which can be applied to various media such as water, steam, oil, nitric acid, acetic acid and so on.
Main Performance Specifications
Product specification:NPS1/4”-4”
Nominal pressure:PN1.0/1.6MPa
Applicable media:water,air,acid
Applicable temperature:-20~120℃
Connection size:GB/T9113.1/ASME B16.5 CLASS 150
Structural length:GB/T 12221/ANSI B16.34
Inspection and test: GB/t 13927/API1598
Material of main parts
Part Name |
Material |
Body |
304/316 |
Bonnet |
304/316 |
Ball |
304/316 |
Stem |
304/316 |
Seat |
PTFE |
Stem seal |
PTFE |
Middle head pad |
PTFE |
Packing Sleeve |
201 |
Handle |
201 |
Rubber sleeve |
Plastic |
Elastic |
201 |
Nut |
304/316 |
Bolt |
304/316 |
Main external and connection dimensions
Unit:mm
NPS |
DN |
d |
L |
H |
W |
1/4” |
6 |
11.6 |
65 |
48 |
120 |
3/8” |
10 |
12.7 |
65 |
48 |
120 |
1/2” |
15 |
15 |
72 |
54 |
120 |
3/4” |
20 |
20 |
83 |
57 |
130 |
1” |
25 |
25 |
91 |
72 |
154 |
1-1/4” |
32 |
32 |
103 |
79 |
154 |
1-1/2” |
40 |
38 |
110 |
81 |
185 |
2” |
50 |
50 |
131 |
97 |
185 |
2-1/2” |
65 |
65 |
164 |
130 |
250 |
3” |
80 |
80 |
182 |
148 |
250 |
Advantage:
1. It consists of three parts, which is convenient for later maintenance and replacement.
2. Advanced silica sol technology, reasonable structure and beautiful appearance.
3. The valve seat adopts an elastic sealing structure, the switch is labor-saving, light, and has good sealing performance.
4. The valve stem adopts a bottom-mounted structure with an inverted seal, and the valve stem will not fly out due to internal pressure, ensuring safety.
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