Straight Valves | McMaster-Carr

0.01
0.013
0.02
0.03
0.037
0.038
0.04
0.05
0.06
0.07
0.075
0.08
0.081
0.09
0.1
0.11
0.118
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.2
0.201
0.21
0.22
0.23
0.24
0.25
0.26
0.28
0.29
0.3
0.31
0.313
0.35
0.352
0.37
0.38
0.4
0.41
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.488
0.5
0.51
0.52
0.523
0.53
0.54
0.55
0.56
0.58
0.6
0.63
0.64
0.65
0.66
0.67
0.68
0.7
0.72
0.73
0.75
0.76
0.77
0.78
0.79
0.8
0.82
0.83
0.85
0.87
0.88
0.9
0.92
0.93
0.94
1
1.016
1.02
1.03
1.05
1.06
1.09
1.1
1.15
1.16
1.17
1.2
1.21
1.22
1.24
1.3
1.31
1.35
1.39
1.4
1.41
1.43
1.47
1.5
1.52
1.524
1.53
1.57
1.6
1.68
1.7
1.728
1.75
1.8
1.84
1.85
1.9
1.93
1.954
1.96
2
2.09
2.1
2.2
2.25
2.3
2.35
2.4
2.5
2.6
2.61
2.67
2.69
2.7
2.72
2.74
2.75
2.8
2.87
2.9
2.982
3
3.06
3.1
3.2
3.3
3.4
3.48
3.5
3.53
3.584
3.6
3.75
3.8
3.9
4
4.1
4.2
4.24
4.3
4.4
4.48
4.5
4.55
4.6
4.7
4.78
4.8
4.9
5
5.08
5.1
5.2
5.24
5.3
5.4
5.5
5.6
5.7
5.75
5.8
5.9
5.965
6
6.01
6.1
6.29
6.3
6.32
6.4
6.463
6.5
6.56
6.6
6.7
6.78
6.8
6.9
6.99
7
7.1
7.2
7.3
7.4
7.5
7.7
7.77
7.8
8
8.1
8.2
8.26
8.3
8.4
8.8
8.86
8.96
9
9.088
9.1
9.3
9.36
9.4
9.5
9.6
9.7
9.8
10
10.3
10.4
10.7
11
11.1
11.2
11.6
11.9
12
12.1
12.2
12.4
12.5
12.6
12.7
12.8
12.9
13
13.95
14
14.09
14.1
14.3
15
15.5
15.67
15.7
16
16.3
16.5
16.8
16.9
17
17.4
17.5
17.6
18
18.3
18.6
18.8
19
19.2
19.3
19.6
19.8
19.9
20
20.9
21
21.83
22
22.1
22.34
23
24
24.16
25
26
27
27.4
27.67
28
29
30
30.5
30.8
31
32
32.3
33
33.3
33.6
34
34.4
34.8
35
35.84
36
37
37.84
38
38.5
38.6
39
39.1
40
42
42.5
43
43.02
44
45
46
47
48
48.5
49
50
50.1
51
51.9
52
52.2
53
54
55
56
57
58
59
60
60.7
61
62.1
63
64
65
65.2
66
68
69
70
71
72
74
74.6
75
76
77
77.9
78.8
80
80.9
81
82
82.19
84
85
86
87
89
90
91
92
92.4
93
94
95
97
98.4
100
102
103.7
105
108
109
110
111
112
112.5
114
115
119
120
125
129
130
131
132
135
137
138
140
141
142
144
144.4
146
149
150
156
157
158
159
160
163
165
168
170
171
174
175
177
180
185
190
191
192
193
195
196
200
201.3
202.7
206.8
212
215
220
225.4
227
228
230
240
241
245
248
249
250
255.2
257
260
266
268.4
270
277
280
284
285
287
288
290
291
292
297
300
302
306
307
309.2
311
319
333
335
337
340
345
348.6
350
357
360
370
376
389
390
395
400
402
411
412
413
420
429
434
451
457
464
468
469
480
490
495
500
503
510
520
536
540
550
563.8
580
590
596.2
599
600
605
629
631.4
670
685
705
706
720
723
735
740
750
755
768
800
820
835
850
860
870
880
896.5
930
945
1,009.5
1,013
1,018
1,020
1,022
1,060
1,124
1,125
1,126
1,150
1,245
1,305.5
1,309
1,366
1,400
1,577.3
1,579
1,600
1,620
1,622
1,660
1,780
1,795
1,800
1,880
1,900
2,020
2,028
2,100
2,110
2,150
2,250
2,400
2,500
2,901
2,940
3,104
3,129
3,136
5,470
7,942
Not Rated

	End-to-End Length End-to-End Length

1/4"

	Seat Material Seat Material

Rubber

5,455 Products

Flow-Control Valves

On/Off Valves

Quickly start and stop flow with these valves.

Gradual On/Off Valves

Also known as gate valves, these gradually open and close to prevent system damage from suddenly starting and stopping flow.

Actuated On/Off Valves

Driven by compressed air or electricity, these valves automatically start and stop flow.

Flow-Adjustment Valves

Gradually open and close these valves to adjust and regulate flow.

Backflow-Prevention Valves

Stop backward flow to prevent system contamination.

Balancing Valves

These balancing valves help you measure the difference in pressure across the valve and adjust the flow rate to system components. Also known as circuit setters, they’re often used in systems that need an even distribution of flow, such as HVAC systems.

Other Valves

Pipeline Flame Arresters

To prevent flashback in flammable gas pipelines, an internal flame-arresting element absorbs the heat from a fire to extinguish the flame.

Backflow-Prevention Valves
with Clamps for Sump Pumps

Prevent dirty water from flowing back to your pump.

Compressed Air Control Valves

Slow-Start Actuated
Air-Exhaust Valves

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

Pressure and Vacuum Control Valves

Ensure safe, consistent, and efficient pressure in pipelines and tanks. These valves are available in relief, pop-safety, pressure-regulating, and air-release styles.