Self-sealing gate valve

Products > Gate Valve > Self-sealing gate valve

Self-sealing gate valve

Product model: Z61Y
Nominal diameter: NPS3 / 8 "~ 2"
Suitable medium: water, steam, oil and the like
Temperature: -29 ℃ ~ 550 ℃
Main material: A105, A182F22, A1 82 F304 (L), A182 F316 (L)
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Self-sealing gate  valve has three kinds of valve cover design form. The first is a bolt-type bonnet, designed in this form of the valve, the valve body and the valve cover with bolts and nuts, wound gasket (316 clamp flexible graphite) sealed. Customers have special requirements can also be used when the metal ring connection. The second design form is a welded bonnet, according to this design form of the valve, the valve body and the valve cover with a threaded connection, full welding seal. Customers have special requirements can also be used when the whole welding connection. The third is the pressure from the tight-type valve cover, according to the design of the design of the valve, the valve body and the valve cover with the thread, the pressure from the seal ring seal.
 

Design structure and description characteristics

Gate valve design with APl602, BS5352 and ASME B16.34. Inspection and testing according to APl598, marked by MSS-SP-25.
 

Standard Material List

Serial number NO.

Part Name

CS to ASTM

AS to ASTM

SS to ASTM

Part Name

TypeAl05

TypeF22

TypeF304 (L)

TypeF316 (L)

l

Body

A105

A182F22

A1 82 F304 (L)

A182 F316 (L)

2

Seat

A276420

A276304

A276 304 (L)

A276 316 (L)

3

gate

A276 430 & 410

A182F304

A182 F304 (L)

A182 F316 (L)

4

Stem

A182 F6

A182F304

A182 F304 (L)

A182 F316m,

5

Gasket

316 clip flexible graphite

316 clip SS + PTFE

6

cap

A105

A182F22

A182 F304 (L)

A182 F316 (L)

7

Bonnet bolts

A19387

A193816

A19388

A19388M

8

Cylindrical pin

A276420

A182 F304

9

Packing sleeve

A276410

A182 F304 (L)

A182 F316 (L)

10

Living bolts

A19387

A193816

A19388

A19388M

11

Packing plate

A105

A182F11

A182 F304 (L)

A182 F316 (L)

12

Nuts

A1942H

A1944

A1948

A194 8M

13

Stem nut

A276420

14

fasten the screw nut

A1942H

A1944

A1948

A1948M

15

Nameplate

SS

16

Hand wheel

A197

17

Lubricating gaskets

A473 431

18

filler

Flexible graphite

PTFE

Applicable media

Water, steam, oil and so on

Water, steam, oil and so on

Nitric acid, acetic acid and so on

proper temperature

-29 ° C to 425 ° C

-29 ° C to 550 ° C

-29 ° C to 180 ° C

Note: Other materials available to customer needs are also available. The sealing surface material pairing is determined by the customer's designation. cs = carbon steel; As = alloy steel; Ss = stainless steel.

Size (mm) and weight (kg)

NPS

Shrinkage

3/8

1/2

3f4

1

1 1/4

1 1/2

2

/

Full path

/

3/8

1/2

3/4

1

1 1/4

1 1/2

2

L

79

79

92

111

120

120

140

178

H (open 0PEN)

158

1 58

169

197

236

246

283

330

W

100

100

100

125

160

160

1 80

200

weight

Bolt type

2.1

2. O

2,3

4.3

5.9

6.9

1 1.1

1 5.2

Welding type

1.8

1.7

2.0

3.8

5.1

6.1

10.2

14.2