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Brute Safety Products BST 125 Leak Testing Personal Isolation Do Not Close safety tag, 75x145mm, with white front and green and white diagonal stripe header and footer, showing do not close this valve warning in green text and fields for checked by, removal and reinstatement name, date and signature.
  • Brute Safety Products BST 125 Leak Testing Personal Isolation Do Not Close safety tag, 75x145mm, with white front and green and white diagonal stripe header and footer, showing do not close this valve warning in green text and fields for checked by, removal and reinstatement name, date and signature.
  • Front and back view of the BST 125 Leak Testing Personal Isolation Do Not Close tag. Front shows white body with green and white diagonal stripe header and footer, leak testing personal isolation header, do not close this valve warning in green text, and fields for checked by, removal and reinstatement name, date and signature. Reverse shows green body with system valve open header and fields for valve ID, system and line ID, WCO number, isolated by, signature, date and time and permit to work reference.
  • Brute Safety BST 125 Leak Testing Do Not Close tag shown at an angle with callout labels highlighting tearproof synthetic stock, 8mm reinforced metal eyelet, space to write what matters, and weatherproof no fade ink.
  • Brute Safety Products BST 125 Leak Testing Personal Isolation Do Not Close safety tag, 75x145mm, with white front and green and white diagonal stripe header and footer, showing do not close this valve warning in green text and fields for checked by, removal and reinstatement name, date and signature.
  • Front and back view of the BST 125 Leak Testing Personal Isolation Do Not Close tag. Front shows white body with green and white diagonal stripe header and footer, leak testing personal isolation header, do not close this valve warning in green text, and fields for checked by, removal and reinstatement name, date and signature. Reverse shows green body with system valve open header and fields for valve ID, system and line ID, WCO number, isolated by, signature, date and time and permit to work reference.
  • Brute Safety BST 125 Leak Testing Do Not Close tag shown at an angle with callout labels highlighting tearproof synthetic stock, 8mm reinforced metal eyelet, space to write what matters, and weatherproof no fade ink.
Leak Testing Do Not Close Tag

Leak Testing Do Not Close Tag

BST 125 Strung 75 x 145mm 100 tags

A personal isolation tag for leak testing procedures where a system valve must remain open. The bold Do Not Close This Valve message makes the requirement clear. The front records checked by, removal and reinstatement name, date, and signature. The reverse captures valve ID, system and line ID, WCO number, isolated by, date, time, and permit reference.
$35.50 AUD inc. GST
Taxes included.
In Stock Ready to Ship
Dispatched 1 - 3 Business Days
Printed Perth, WA
Product Specifications

Size: 75 x 145mm
Finishing: Strung
Material: Polypropylene
Pack Size: 100 tags
Who is this for

The Leak Testing Do Not Close Tag is used by maintenance engineers, inspection technicians, and safety officers to mark valves, vents, and access points that must remain open during a pressure test or leak test procedure. Closing a designated open point during a pressure test can cause uncontrolled pressure build-up, equipment damage, or sudden failure of the system under test, and the tag prevents workers from inadvertently closing a valve or connection that is required to remain open as part of the test configuration. It is used alongside the Leak Testing Do Not Open Tag in oil and gas, chemical processing, mining, plumbing, fire protection, and any industrial facility where pressure testing procedures require specific valves and connections to be held in a defined open or closed state for the duration of the test.
Shipping & Delivery

Shipping Information

Review our shipping options and delivery times below.

State Metro Regional
WA 1 - 5 Business Days / Pickup Available 4- 7 Business Days
NSW 2 - 5 Business Days 4- 7 Business Days
VIC 2 - 5 Business Days 4- 7 Business Days
QLD 2 - 5 Business Days 4- 7 Business Days
SA 2 - 5 Business Days 4- 7 Business Days
TAS 2 - 5 Business Days 4- 7 Business Days
NT 2 - 5 Business Days 4- 7 Business Days
ACT 2 - 5 Business Days 4- 7 Business Days
Additional Information

The BST 125 Leak Testing Personal Isolation Do Not Close Tag prevents unauthorised valve operation during leak testing personal isolation procedures in Australian industrial workplaces where closing a system valve could result in serious injury or death. Manufactured from heavy duty tearproof polypropylene with weatherproof no fade ink and an 8mm reinforced metal eyelet, it delivers clear and immediate valve isolation communication. Each pack contains 100 pre-strung tags measuring 75 x 145mm.

Common across oil and gas, chemical processing, and mining, it supports safe leak testing isolation procedures with personal accountability fields and system valve identification on the reverse.

  • Bold do not close this valve warning for immediate visual impact
  • Front fields for checked by, removal and reinstatement name, date, and signature
  • Reverse system valve open fields for valve ID, system and line ID, WCO number, isolated by, signature, date, and permit to work reference
  • Tearproof polypropylene withstands harsh outdoor and industrial conditions
  • 8mm reinforced metal eyelet for secure attachment to valves and isolation points
250+
Australian Worksites Trust Brute
100%
Printed & Packed in Perth WA
50+
Years of Print Experience
$200
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Complete Your Safety Kit

Brute Safety Products BST 124 Leak Testing Personal Isolation Do Not Open safety tag, 75x145mm, with white front and red and white diagonal stripe header and footer, showing do not open this valve warning in red text and fields for checked by, removal and reinstatement name, date and signature.
Leak Testing Do Not Open Tag $35.50
Brute Safety Products BST 130 Pressure Test Log safety tag, 75x145mm, with yellow body and black Pressure Test Log header panel, showing fields for process, tag location, work order, test pressure in kPa, MAWP in kPa, test media, test time in minutes, size, MOC, authorised by and signature.
Pressure Test Log Tag $35.50
Brute Safety Products BST 123 Breaking of Containment safety tag, 75x145mm, with orange body and black and orange diagonal stripe header and footer, warning triangle symbol, and fields for permit to work reference, reinstatement by, reinstatement signature and reinstatement date.
Breaking of Containment Tag $35.50
BST 004 Out of Service safety tag in yellow, upright view showing complete tag design by Brute Safety Products
Out of Service Tag $35.50

Frequently asked questions
How many tags come in a pack?

All of our tearproof tag packs contain 100 tags, making them practical for stocking site offices, tool rooms, and maintenance facilities. Buying in packs keeps per unit costs down and ensures you have adequate supply on hand without needing to reorder frequently. For larger operations managing multiple sites or high tag turnover, trade accounts and bulk pricing are available — contact the team to discuss your requirements.
Do the tearproof tags come pre-strung?

Yes, our tearproof tags come pre-strung and ready to use straight out of the pack. This saves time on busy sites where tags need to be applied quickly during isolation or equipment inspection procedures. The stringing is suitable for attaching tags to valves, switches, equipment handles, and isolation points. If you need tags attached using a specific method for your site procedures, the metal eyelet also accepts wire, cable ties, or nylon rope as alternatives.
What size eyelet do the tearproof tags have?

Each tearproof tag comes fitted with an 8mm metal eyelet. The metal eyelet reinforces the attachment point and prevents the tag from tearing where it is hung, which is the most common failure point on cheaper tags. An 8mm eyelet is a practical size for most standard wire, cable ties, padlock hasps, and isolation points found on Australian worksites, making the tags compatible with the majority of lockout tagout and equipment isolation setups without any modification.
What material are the tearproof safety tags made from?

Our tearproof safety tags are made from polypropylene, a synthetic material that resists tearing, moisture, oils, chemicals, and UV exposure. Unlike card or paper tags which deteriorate quickly on site, polypropylene maintains its integrity in the conditions you find on Australian construction, mining, and industrial worksites — heat, dust, grease, and rough handling included. Each tag is printed with no fade inks to ensure critical safety information stays legible throughout the tag's service life.
What types of safety tags are available in the tearproof range?

Our tearproof range covers a wide variety of tag types to suit most Australian worksite requirements. Available titles include Danger Do Not Start, Danger Do Not Operate, Out of Service, Personal Danger, Do Not Energise, Caution Repair, Caution Information, Out of Service, Commissioning, Information, Warning Do Not Remove, Inspected Ready to Use, Quality Control, Accepted, Rejected, Inspection, Passed Inspection, Failed Inspection, Repair Order, Leak Inspection, Q.A Approved, Q.A Hold, Quarantine, Full Cylinder, and Empty Cylinder. All are made from polypropylene with a metal eyelet and come pre-strung in packs of 100.