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SAFETY DEVICES

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www.henrytech.com

Part No

Type

NPT (inch)

Dimensions (inch)

STD Rupture Disc setting

at 72°F (PSI)

Capacity

lbs. Air/min

Weight

(lbs)

Inlet

Outlet

A

B

ØC

D

5525-235-CE

Brass

3/8

3/8

2.94

1-1/4 Hex

0.375

0.79

235

25.5

0.69

5525-300-CE

300

32.2

5525-350-CE

350

37.3

5525-400-CE

400

42.5

5525-450-CE

450

47.6

5525-600-CE

600

63.0

5525-650-CE

650

68.1

5526-235-CE

Brass

1/2

1/2

2.62

1-1/4 Hex

0.500

0.79

235

45.3

0.68

5526-300-CE

300

57.2

5526-350-CE

350

66.3

5526-400-CE

400

75.5

5526-450-CE

450

84.6

5526-600-CE

600

110.8

5526-650-CE

650

119.8

5626-150-CE Stainless

Steel

1/2

1/2

2.96

Ø1.13

0.500

0.92

150

29.8

0.62

5626-250-CE

250

52.1

5626-300-CE

300

57.2

5627-150-CE Stainless

Steel

3/4

3/4

3.29

Ø1.50

0.750

0.92

150

35.8

1.44

5627-250-CE

250

57.7

5627-300-CE

300

68.7

5628-150-CE Stainless

Steel

1

1

3.73

Ø1.72

1.000

1.27

150

67.1

1.36

5628-250-CE

250

108.2

5628-300-CE

300

128.7

5629-150-CE Stainless

Steel

1-1/4 1-1/4

3.84

Ø1.98

1.312

1.27

150

91.4

1.56

5629-250-CE

250

147.2

5629-300-CE

300

175.2

Selection Guidelines

1. The Rupture Disc pressure setting should be the same as the Henry

Technologies’ Pressure Relief Valve setting.

2.

3. The stamped burst pressure is subject to a manufacturing tolerance of +/-

5%. This tolerance should be taken into account when specifying a

Rupture Disc setting (refer to table).

The stamped capacity of a spring loaded Pressure Relief Valve when

installed with a Rupture Disc between the inlet of the valve and the vessel

shall be multiplied by a factor 0.90 of the rated relieving capacity of the

Pressure Relief Valve alone.

4. It is recommended that the maximum operating pressure of the system is

no more than 70% of the stamped burst pressure, in order to minimize the

risk of premature fatigue failure of the disc. If operating pressures exceed

90% of the stamped burst pressure, the Rupture Disc should be replaced

immediately.

5. The design fatigue strength of each Rupture Disc is 100,000 pressure

cycles. Fatigue life will be reduced by excessive pressures or

temperatures, corrosion, damage, etc.

Œ

Inlet



Oulet

Ž

Gauge port, 1/8 NPT



Rupture disc

D

B

3

A

3

4

Ø C

1

2

Rupture Disc manufacturing tolerance

Pressure setting (PSI)

Pressure range (PSI)

150

143 - 158

200

190 - 210

235

223 - 247

250

238 - 263

300

285 - 315

350

333 - 368

360

342 - 378

400

380 - 420

450

428 - 473

600

570 - 630

650

618 - 683

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