Constant Flow Regulator Valve


Constant Flow Regulator Valve
UF series
(PAT.)

Easy flow rate setting and outstanding constant flow characteristics

Top page
& Site map
Contact us


Technical data

Flange standard dimensions

Standard JIS 10K FF type
Waterworks standard

Constant Flow Regulator Valve / Standard JIS 10K FF type

Constant Flow Regulator Valve / Waterworks standard

Unit: mm

Nominal
bore
JIS 10K, JIS B2239
Waterworks standard, JIS B2062
A
D
C
n-h
Bolt
(f)
(g)
D
C
n-h
Bolt
(f)
(g)

25

125

90

4-19

M16

1

67

Based on JIS 10K

32

135

100

4-19

M16

2

76

Based on JIS 10K

40

140

105

4-19

M16

2

81

Based on JIS 10K

50

155

120

4-19

M16

2

96

Based on JIS 10K

65

175

140

4-19

M16

2

116

Based on JIS 10K

80

185

150

8-19

M16

2

126

211

168

4-19

M16

3

125

100

210

175

8-19

M16

2

151

238

195

4-19

M16

3

152

125

250

210

8-23

M20

2

182

263

220

6-19

M16

3

177

150

280

240

8-23

M20

2

212

290

247

6-19

M16

3

204

200

330

290

12-23

M20

2

262

342

299

8-19

M16

3

256

250

400

355

12-25

M22

2

324

410

360

8-23

M20

3

308

300

445

400

16-25

M22

3

368

464

414

10-23

M20

4

362

350

490

445

16-25

M22

3

413

530

472

10-25

M22

4

414

400

560

510

16-27

M24

3

475

582

524

12-25

M22

4

466

450

620

565

20-27

M24

3

530

652

586

12-27

M24

4

518

500

675

620

20-27

M24

3

585

706

639

12-27

M24

4

572

600

795

730

24-33

M30

3

690

810

743

16-27

M24

4

676

Note:

We manufacture valves with RF flanges (dimensions f, g ) for JIS 10K pipe flanges upon request.

The flange thickness is based on our standard.



Piping examples

Installation in horizontal piping is standard.
Please contact us about installation in vertical piping.

1.

Standard piping example

(1)

It is not necessary to install a straight pipe at the rear of the Constant Flow Regulator Valve.
When install a gate valve at the front of the Constant Flow Regulator Valve, install a straight pipe as shown.
If you plan to install a flow meter, please install the designated straight pipe.

Constant Flow Regulator Valve
D=Nominal bore

(2)

Install a piping within an angle of +/-3 degrees.

Constant Flow Regulator Valve

2.

When there is a bent pipe on the inlet side:

(1)

When the bent pipe is parallel to the valve shaft:
It is not necessary to install a straight pipe at the front or the rear of the valve.

Constant Flow Regulator Valve

(2)

When the bent pipe is perpendicular to the valve shaft:
Install a straight pipe as shown.

Constant Flow Regulator Valve
D=Nominal bore


Installation examples

1. Unit protection equipped

Constant Flow Regulator Valve / Unit protection construction


Unit: mm

Bore
A
B
C
D
E
F
T
H
L

50

400

800

600

1500

150

195

125

2145

2250

80

400

800

600

1500

150

195

125

2145

2250

100

400

800

600

1500

150

195

125

2145

2250

150

400

800

600

1500

150

195

125

2145

2250

200

400

1100

900

1800

250

295

160

2945

2650

250

400

1100

900

1800

250

295

160

2945

2650

300

450

1050

900

2200

280

295

190

2975

3100

350

500

1000

900

2200

280

295

190

2975

3100

On-site construction time can be reduced by use of a ready-made knockdown manhole for protective construction. (Dimension C is changeable.) The above dimensions are in accordance with the National Uni-hole Industrial Association Standard.

2. On-site protection construction

Constant Flow Regulator Valve / Local work protection construction


Unit: mm

Bore
A
B
H
L

50

400

1500

1400

1200

80

400

1500

1400

1300

100

400

1500

1400

1400

150

400

1500

1400

1550

200

400

1500

1400

1800

250

400

1600

1500

2000

300

450

1600

1700

2200

350

500

1600

1800

2400

400

550

1900

2000

2500

450

750

1900

2500

2800

500

750

1900

2500

3000

600

800

2000

2700

3200


Constant Flow Regulator Valve / Local work protection construction



Specifications stated here may be subject to change without notice due to product improvement.

Features
Structure
Technical data
Selection & Dimensions
Inquiry form


© Yokota Manufacturing Co., Ltd. Tel: +81 82-241-8672 E-mail: yokota@aquadevice.com Terms of Use