Yoshitake BLV-2SF Bedienungsanleitung

■EPDT-369■

Model BLV-2SF Ball valve

Product Manual

Thank you very much for choosing the Yoshitake’s product. To ensure the correct and

safe use of the product, please read this manual before use. This manual shall be kept with

care for future references.

The symbols used in this manual have the following meanings.

⚠Warning

This symbol indicates a potentially hazardous situation that, if not avoided,

could result in death or serious injury.

⚠Caution

This symbol indicates a hazardous situation that, if not avoided, may result in

minor or moderate injury or may result in only property damage.

Contents

1. Specifications .......................................................................................... 1

2. Structure and dimensions...................................................................... 2

2.1 Structure and main parts ................................................................ 2

2.2 Dimension and weights....................................................................... 3

3. Installation................................................................................................ 4

3.1.Cautions for installation .................................................................. 4

4. Operation ................................................................................................. 4

4.1.Warnings and cautions for product usage ................................... 4

5. Maintenance and inspection ................................................................. 5

5.1.Warnings and cautions for maintenance and inspection........... 5

5.2.Periodic inspection........................................................................... 5

5.3.Troubleshooting................................................................................ 5

5.4.Cautions for disassembly and re-assembly................................. 5

5.5.Disassembling procedure ............................................................... 6

5.6.Assembling procedure..................................................................... 6

6. Disposal.................................................................................................... 6

Warranty Information

-1-

■EPDT-369■

1. Specifications

Model

BLV-2SF

Nominal size

15-100A

Application

Steam, air, cold and hot water, oil, other non-dangerous fluid

Max. pressure

Max. temperature

According to Pressure-Temperature rating

Material

Body, cap

Stainless steel

Ball

Stainless steel

Ball seat

PTFE

Connection

JIS 10K RF

ANSI 150lb RF

EN PN16

Features

⚫Full bore type

⚫There is no restriction on flow direction.

⚫Anti-static design prevents static electricity charging on

the valve.

⚫The collar on the lower end of the stem prevents the stem

from popping out due to the internal pressure even if the

gland is removed.

Pressure-Temperature rating

⚠Caution

Confirm that the indications on the body casting correspond with the specifications of ordered

product.

*If they are different, do not use the product and contact us.

Usable range

The valve can be used in this range.

Temperature (°C)

Pressure (MPa)

-2-

■EPDT-369■

2. Structure and dimensions

2.1 Structure and main parts

No.

Part name

Q’ty

No.

Part name

Q’ty

Body

Gland

Cap

Nut

1 set

Ball

Stud bolt

1 set

Seat

Bolt

Gasket

Spring washer

Stem

Anti-static device

Thrust washer

Stopper

Gland packing

Snap ring

Stem packing

Handle

-3-

■EPDT-369■

2.2 Dimension and weights

(mm)

Size

Flange JIS 10K RF

Weight

(kg)

n-h

15A

108

51.7

145

4-15

1.9

20A

117

58.5

145

100

4-15

2.3

25A

127

54.7

165

125

4-19

3.8

32A

140

165

135

100

4-19

4.8

40A

165

73.8

113

230

140

105

4-19

6.5

50A

178

86.7

122

230

155

120

4-19

8.6

65A

190

144

230

175

140

116

4-19

12.7

80A

203

101

151

320

M10

102

185

150

126

8-19

17.8

100A

229

118.6

165

320

M10

102

100

210

175

151

8-19

(mm)

Size

Flange ANSI 150lb RF equivalent

Weight

(kg)

n-h

15A

108

51.7

145

88.9

60.5

1.6

11.2

4-16

1.6

20A

117

58.5

145

98.6

69.9

1.6

11.2

4-16

1.9

25A

127

57.2

165

108

79.2

1.6

11.2

4-16

2.8

32A

140

165

117.3

88.9

63.5

1.6

12.7

4-16

3.7

40A

165

82.8

113

230

127

98.6

1.6

14.3

4-16

5.9

50A

178

86.7

122

230

152.4

120.7

1.6

4-19

8.5

65A

190

144

230

177.8

139.7

105

1.6

17.6

4-19

12.6

80A

203

101

151

320

M10

102

190.5

152.4

127

1.6

19.1

4-19

18.1

100A

229

118.6

165

320

M10

102

100

228.6

190.5

157

1.6

23.9

8-19

28.2

(mm)

Size

Flange EN PN16 equivalent

Weight

(kg)

n-h

15A

130

61.7

145

4-14

2.1

20A

150

73.5

145

105

4-14

2.8

25A

160

72.1

165

115

4-14

4.3

32A

180.3

165

140

100

4-18

5.8

40A

200

97.8

113

230

150

110

4-18

7.5

50A

230

111.7

122

230

165

125

102

4-18

10.2

65A

290

144.8

144

230

185

145

122

4-18

80A

310

154.5

151

320

M10

102

200

160

138

8-18

20.7

100A

350

179.3

165

320

M10

102

100

220

180

158

8-18

28.5

-4-

■EPDT-369■

3. Installation

3.1. Cautions for installation

⚠Caution

(5) There is no restriction on the flow direction.

(6) The valve can be installed both horizontally and vertically, but do not install

upside-down.

4. Operation

4.1. Warnings and cautions for product usage

⚠Warning

(1) Before letting the fluid into the product, be sure that there will be no possibility of

danger if fluid flows into the ends of piping, and that the product is firmly connected.

*If the fluid flows out from the pipe ends or connection part, the surroundings will get

dirty. High temperature fluids may cause burn injury.

(2) When using with a high temperature fluid, do not touch the product with your bare

hands.

*It could result in burn injury.

⚠Caution

(3) When applying the fluid into the valve, operate the valve slowly to prevent water

hammer and condensate problem.

*Valves, fitting or equipment may be damaged by water hammer or condensate

problem.

(4) The product should be used fully open or fully close.

*When used at intermediate opening, the ball and the seat may be damaged.

(1) Do not disassemble the product unless it is necessary.

*It may prevent the product from functioning properly.

(2) Connect the product firmly so that the fluid will not leak.

*If connection is not firm, fluid might leak by vibration. Hot fluid may cause burn.

*Select sealing gaskets suitable for the fluid characteristics, pressure and

temperature.

*Tighten the bolts uniformly in diagonal order.

(3) Connect the product so that it is not subject to excessive load, bending and vibration.

*They may seriously shorten the lifetime of the product.

(4) If freezing is possible, take antifreeze measures such as draining or insulation.

*The frozen fluid may damage the product.

✓✕

Good Wrong

-5-

■EPDT-369■

5. Maintenance and inspection

5.1. Warnings and cautions for maintenance and inspection

⚠Warning

(1) When disassembling and inspecting the product, ensure that pressure in the valve

and pipe is released to atmospheric pressure. If using with high temperature fluids,

cool the product down well until it can be touched with bare hands.

*If the fluid flows out, the surroundings will get dirty. High temperature fluids may

cause burn injury.

(2) Disassembly and inspection should be conducted by properly trained personnel or

manufacturer.

5.2. Periodic inspection

Conduct periodic inspection once a year to maintain functions and performance of the

product. If abnormalities were detected, refer to “5.3 Troubleshooting” and take measures.

Inspection items

○Whether opening and closing operation is normal

○Whether there is abnormal noise

○Whether there is external leak

5.3. Troubleshooting

Trouble

Cause

Remedy

External leak

Nut [11] is loose.

Tighten nut [11].

Bolt [13] is loose.

Tighten bolt [13].

Gasket [5] is damaged.

Replace seat [4] and gasket [5].

Gland packing [8] is damaged.

Replace all the packings.*

Seat leak

Seat [4] is damaged.

Replace seat [4] and gasket [5].

Ball [3] is damaged.

Replace the product.

Foreign substances are stuck.

Remove the foreign substances.

Abnormally high

operation torque

Bolt [13] is overtightened.

Loosen bolt [13] and re-tighten so that there

is no leak (but not too tightly).

Foreign substances are stuck.

Remove the foreign substances.

Abnormal noise

Bolt [13] is loose.

Tighten bolt [13].

*Packings: seat [4], gasket [5], thrust washer [7], gland packing [8], stem packing [9]

5.4. Cautions for disassembly and re-assembly

⚠Caution

(1) When disassembling and re-assembling, replace the packings with new ones.

(2) When disassembling and re-assembling, be careful not to drop parts. Keep the

dismantled parts on soft cloth so that they will not be damaged.

*Damage on the parts may impair the product’s function.

(3) When reassembling, assemble the parts securely. Tighten the bolts and nuts

uniformly in diagonal order.

*Loose assembly or uneven tightening may cause fluid leakage.

-6-

■EPDT-369■

5.5. Disassembling procedure

(1) Close the valve fully.

(2) Detach the snap rings [17] from the stem [6], and remove the handle [18]

and stopper [16].

(3) Remove the nuts [11] fixing the body [1] and cap [2], and take the cap [2] off

the body [1].

(4) Remove the gasket [5] from the body [1] or cap [2].

(5) Remove the ball [3] from the body [1].

(6) Push the stem [6] to inside body [1] and remove it.

(7) Remove the thrust washer [7] from the stem [6].

(8) Remove the seats [4] from the body [1] and cap [2].

(9) Remove the bolts [13], and disassemble the gland [10], stem packing [9] and

gland packing [8].

5.6. Assembling procedure

(1) Mount 3 pieces of gland packing [8] on the body [1]. Be sure that the V-

shaped grooves are on downside.

(2) Insert the stem packing [9] into the gland [10], and fix them temporarily on

the body [1] with bolts [13].

(3) Assemble the seats [4] on the body and cover [2].

(4) Attach the thrust washer [7] on the stem [6].

(5) Insert the stem [6] from inside the body [1] and push in until the collar of the

stem [6] contacts the body [1]. Then rotate it until the full-close position.

(6) Mount the ball [3] on the body [1] so that its groove fits the stem [6].

(7) Fit the gasket [5] on the body [1].

(8) Attach the cap [2] on the body [1] without moving seat [4], and fix them with

nuts [11].

(9) Mount the stopper [16] on the stem [6] and fix them with snap ring [17].

(10) Tighten the bolts [13] which had been temporarily fastened.

(11) Mount the handle [18] on the stem [6] and fix with the snap ring [17].

(12) Check and confirm that all fastening parts are securely fastened.

Size and torque of fastening parts

Nominal

size

Nut [11]

Bolt [13]

Nominal

diameter

of screw

Size of

Wrench

Torque

(N・m)

Nominal

diameter

of screw

Size of

Wrench

Torque

(N・m)

15, 20A

25, 32A

M10

19.6

40, 50A

M12

34.5

M10

65, 80A

M12

34.5

M10

100A

M12

34.5

M10

6. Disposal

When disposing the product, refer to the drawing to check material of each part and dispose

them separately according to local rules and regulations.

PDD-046f

Warranty Information

1. Limited warranty

This product has been manufactured using highly-advanced techniques and subjected to

strict quality control. Please be sure to use the product in accordance with instructions on

the manual and the label attached to it.

Yoshitake warrants the product to be free from any defects in material and workmanship

under normal usage for a period of one year from the date of receipt by the original user, but

no longer than 24 months from the date of shipment from Yoshitake’s factory.

2. Parts supply after product discontinuation

This product may be subject to discontinuation or change for improvement without any prior

notice. After the discontinuation of the product, Yoshitake supplies the repair parts for 5

years otherwise individually agreed.

3. This warranty does not cover the damage due to any of below:

(1) Valve seat leakage or malfunction caused by foreign substances inside piping.

(2) Improper handling or misuse.

(3) Improper supply conditions such as abnormal water pressure/quality.

(4) Water scale or freezing.

(5) Trouble with power/air supply.

(6) Any alteration made by other than Yoshitake.

(7) Use under severe conditions deviating from the design specifications

(

e.g. in case of corrosion due to outdoor use).

(8) Fire, flood, earthquake, thunder and other natural disasters.

(9) Consumable parts such as O-ring, gasket, diaphragm and etc.

Yoshitake is not liable for any damage or loss caused by malfunction or defect of the product.

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