18 April 2023

AirGuard Protection System

Protection units for compressed air

Protection units for Compressed Air

When the issue is:

Protection of personnel, pneumatic tools,

machinery and equipment

2The “AirGuard“ air fuse is the answer

Protection!

• Protecting People• Protecting Facilities• Protecting Production• Protecting investments

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AirGuard Air Fuse

Electricity Fuse!

• When did your electricity fuse blow????

At home or at work?

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Protection!

• We are protected in everyday life:1.At home

• Electric fuses• Alarms

2.Computers• Firewalls, from viruses, backup

3. In our cars• Safety belts• Airbags• Alarm

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Protection

• But why not protect and safeguard the most valuable assets:

• Your employees?• Your production?• Your tools, equipment and plant?

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Protection

• Already exists for ;• Electricity• Hydraulic• Water & fluids

But for compressed air?

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Where Danger Lurks

8 AirGuard – air fuse can protect

Danger!!

9 ½” hose out of control !!

Danger !

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Danger!!

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But what if one of these - (1” or 2“ hoses) was severed!

AirGuard System Meets Following Safety Requirements

USA Regulations ISO Standards Complies with Regulations

USA regulations: Excert of the OSHA regulations (Standards - 29 CFR) 1926 Safety & Health Regulations for Construction Power-operated hand tools - 1926.302 1926.302(b)(7)

"all hoses exceeding 1/2" inside diameter shall have a safety device at the source of supply or branch line to reduce pressure in case of hose failure"

Excert of the ISO Standards (ISO 4414 – 5.4.5.11.1 states:

" when failure of a hose assembly or plastic pipingconstitutes a whiplash hazard, it shall be restrained or shielded by suitable means and/or an air fuse for compressed air shall be mounted "

•ISO 4414 § 5.4.5.8•OSHA Regulation Standards 29 CFR §1926.302 (partial)•MSHA Regulation 30 CFR § 6.13021/57.13021 and § 57.1730•EU Standard EN 983 § 5.3.5.3.2 •UK Corporate Manslaughter Act•TÜV Approval No. 01.02.0145•EU Registered Utility Model No. 0025 73 525

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AirGuard - How It Works

• Function: (P) is the inlet. Air passes the piston (1) and continues through the seat (3). The air flow, passing the piston, is slowed down by means of length wise grooves on the outer side of the piston. If the flow is too high, the air cannot pass the piston quickly enough, and the piston is forced against the spring (2) and towards the seat. E.g. if the hose suddenly breaks - the air supply is automatically shut off. An integral bleed hole allows some air to flow through. This enables the line pressure to automatically reset the AirGuard once the main line break is repaired.

AirGuard - Technical Data

Thread Connection

Weight g (oz.)

Max. Inlet Pressure

Temp. Range MaterialP1 Inlet Thread

P2 Outlet Thread

Part Number

NPT

A B SW

1/4" 48 (1.89) - 22 (.87) 30 (1.06) Female Female P4GBA92

1/4" 58 (2.28) 49 (1.93) 22 (.87) 36 (1.27) Male Female P4GAA92

3/8" 59 (2.32) - 27 (1.06) 58 (2.05) Female Female P4GBA93

3/8" 71 (2.80) 59 (2.32) 28 (1.06) 62 (2.19) Male Female P4GAA93

1/2" 65 (2.56) - 30 (1.18) 78 (2.75) Female Female P4GBA94

1/2" 80 (3.15) 65 (2.56) 31 (1.18) 85 (3.00) Male Female P4GAA94

3/4" 76 (2.99) - 30/36* (1.18/1.42*) 107 (3.77) Female Female P4GBA96

1" 100 (3.94) - 41/50* (1.61/1.97*) 300 (10.58) Female Female P4GBA98

2" 130 (5.12) - 70/80* (2.76/3.15*) 775 (27.34) Female Female P4GBA9CNote: BSP Threads Available Upon Request

Housing: Aluminum Piston: Polyacetal

Housing: Aluminum Piston: Aluminum

-20°C to 120°C (-4°F to 248°F)

Dimensions (mm) inch

(18 bar) 255 PSIG

(35 bar) 500 PSIG

-20°C to 80°C (-4°F to 176°F)

60 120 300 600 1200 3000 6000 12000 air flow L/min

(2) (4.2) (10.5) (21) (42) (112) (210) (420) (scfm)0

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4

6

8

10

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14

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hose internal diameter mm (in.)

ho

se

le

ng

th –

me

ters

(fe

et)

1/4” 3/8” 1/2” 3/4”

2016131086

1. Determine the internal diameter of the hose, tube or pipe being used.

2. Determine the length of the hose, tube or pipe.

3. Read the length of the hose, tube or pipe

4. Result: every flow value to the right of the vertical line would activate the Air Guard in case of a bursting hose, pipe or tube

Example: How to determine the correct AirGuard for an 8mm internal diameter & 10 metre long air hose (see the 10 metre hose line

above)

the intersection point is to the right of the vertical line. Result: a 3/8” AirGuard can be used.

AirGuard for Compressed Air Systems

How to select the optimal size of an AirGuard

Protection Package - AirGuard

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Typical Installation

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Success Story - Installation

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2” solid pipe

2” Flexible hose

25m length

Manifold

Manifold

Manifold

1” Flexible hose

1” Flexible tube

1/4” Flexible tube