Guillemin symmetrical fittings are pipe fittings used to connect pipes and pipes quickly and easily. They are often used in industries such as agriculture, the oil and gas industry, as well as in firefighting systems. These fittings are made of aluminum, stainless steel or brass, depending on the needs of the application. Guillemin symmetrical fittings are known for their reliability and durability. They offer excellent sealing and are easy to install and disassemble. More information on Guillemin symmetrical fittings is available on the Multitanks website.
Not sure which fitting you need? Tell us what you have, we show you what screws onto it — live prices and stock.
Pipe thread chart: inch / mm conversion (BSP, 15/21, 20/27, S60x6)
A “1/2 inch” thread measures 20.96 mm, not 12.7: in plumbing, the inch size is not converted, it is read from a chart. Here you will find the inch / mm correspondence of every common thread (BSP or “gas thread”, French names 15/21 · 20/27 · 26/34, NPT, S60x6 IBC tanks, Guillemin, Camlock, PVC), a tool that identifies your thread and the fitting that goes with it, and the pitfalls to avoid.
Which thread do you have? Which fitting do you need?
No need to know the name of your thread. Tell us what you need to connect to, or type what you know (“20/27”, “3/4 inch”, “S60x6”, “26.4 mm”): we identify the thread and show you the fittings that go with it. Dimensions according to ISO 228, ISO 7 and ASME B1.20.1.
✔ Shipped next working day from our stock✔ 4.5/5 from more than 6,400 customer reviews✔ Not sure? Describe what you need, we will find the fitting with you⎙ Printable thread gauge (PDF, actual size)
No need to know the name of your thread. Just answer the question: what do you need to connect to?
With a caliper, measure the outside diameter of a male (thread visible on the outside) or the inside diameter of a female (thread inside the hole), at the root of the thread.
The Three-Sided Reinforced Steel Wrench with Red Epoxy Coating is a lightweight, ergonomic and durable tool, specially designed to safely handle symmetrical fittings in sizes DN40 to DN65. Suitable for demanding industrial environments, it offers exceptional resistance to wear, corrosion, and scratches, ensuring optimal performance during field operations. Its...
The Three-Sided Reinforced Steel Wrench with Red Epoxy Coating is a lightweight, ergonomic and durable tool, specially designed to safely handle symmetrical fittings in sizes DN40 to DN65. Suitable for demanding industrial environments, it offers exceptional resistance to wear, corrosion, and scratches, ensuring optimal performance during field operations. Its...
Symmetric Guillemin half coupling with lock in polypropylene with male threaded socket. Designed for firefighting and industrial applications , this high-performance coupling integrates BSP gas threading for reliable and leak-proof connection. Perfect for suction and discharge of liquids,...
Symmetric Guillemin half coupling with lock in polypropylene with male threaded socket. Designed for firefighting and industrial applications , this high-performance coupling integrates BSP gas threading for reliable and leak-proof connection. Perfect for suction and discharge of liquids,...
The Multitanks stainless steel tricoise key is the essential professional tool for handling Guillemin symmetrical couplings from DN25 to DN150 in complete safety. Made of high-quality stainless steel, it resists corrosion and difficult environmental conditions perfectly. Its ergonomic design and its optimal...
The Multitanks stainless steel tricoise key is the essential professional tool for handling Guillemin symmetrical couplings from DN25 to DN150 in complete safety. Made of high-quality stainless steel, it resists corrosion and difficult environmental conditions perfectly. Its ergonomic design and its optimal...
The symmetrical connection with reduced ringed socket with polypropylene collar is intended to be crimped on pipes. It can be assembled by different crimping systems: stamped skirts, ruffled necklaces, strapping and notched...
The symmetrical connection with reduced ringed socket with polypropylene collar is intended to be crimped on pipes. It can be assembled by different crimping systems: stamped skirts, ruffled necklaces, strapping and notched...
The simplified Guillemin symmetrical cap with aluminum handle and chain is the perfect accessory to protect your connection expectations. Made in France , this lockless model is easy to handle thanks to its ergonomic handle and always remains at hand thanks to its safety chain....
The simplified Guillemin symmetrical cap with aluminum handle and chain is the perfect accessory to protect your connection expectations. Made in France , this lockless model is easy to handle thanks to its ergonomic handle and always remains at hand thanks to its safety chain....
The lockable flat symmetrical Guillemin cap in aluminum is the essential safety accessory for your irrigation networks. Made in France , it allows you to lock access to your valves with a padlock, while remaining attached to the installation through its retention chain. Robust...
The lockable flat symmetrical Guillemin cap in aluminum is the essential safety accessory for your irrigation networks. Made in France , it allows you to lock access to your valves with a padlock, while remaining attached to the installation through its retention chain. Robust...
The symmetrical Guillemin firefighter cap in polypropylene with lock and chain guarantees perfect sealing of your symmetrical fittings. Designed for professionals and individuals, it effectively protects against infiltration, dust and contamination. Its polypropylene construction ensures excellent chemical and mechanical...
The symmetrical Guillemin firefighter cap in polypropylene with lock and chain guarantees perfect sealing of your symmetrical fittings. Designed for professionals and individuals, it effectively protects against infiltration, dust and contamination. Its polypropylene construction ensures excellent chemical and mechanical...
The Guillemin Male Symmetrical Coupling with Stainless Steel Lock is the robust solution for your aggressive or powdery fluid transfers. Featuring a standard BSP thread, it is a perfect fit for pumps and stationary installations in the oil, chemical and pharmaceutical industries. Its stainless...
The Guillemin Male Symmetrical Coupling with Stainless Steel Lock is the robust solution for your aggressive or powdery fluid transfers. Featuring a standard BSP thread, it is a perfect fit for pumps and stationary installations in the oil, chemical and pharmaceutical industries. Its stainless...
The Guillemin Female Symmetrical Polypropylene Half Fitting with Lock provides exceptional chemical resistance for the transfer of aggressive fluids. Featuring a standard BSP tap, it easily adapts to your fixed installations while ensuring secure mechanical locking. Ideal for agriculture, water...
The Guillemin Female Symmetrical Polypropylene Half Fitting with Lock provides exceptional chemical resistance for the transfer of aggressive fluids. Featuring a standard BSP tap, it easily adapts to your fixed installations while ensuring secure mechanical locking. Ideal for agriculture, water...
The Guillemin symmetrical half-fitting with corrugated sleeve in AISI 316 stainless steel (1.4401) is the high-security transfer solution for corrosive and sensitive fluids. Compliant with NF E 29.572 standards, this 16 bar fitting offers exceptional resistance (50 bar burst) and unrivalled durability in...
The Guillemin symmetrical half-fitting with corrugated sleeve in AISI 316 stainless steel (1.4401) is the high-security transfer solution for corrosive and sensitive fluids. Compliant with NF E 29.572 standards, this 16 bar fitting offers exceptional resistance (50 bar burst) and unrivalled durability in...
The Guillemin Male Lockless Symmetrical Half Fitting made of 316 Stainless Steel is the ideal connection solution for demanding corrosive environments. Compliant with NF E 29.572 standards, this PN16 fitting with BSP thread can be installed on fixed equipment in the chemical, agri-food and oil...
The Guillemin Male Lockless Symmetrical Half Fitting made of 316 Stainless Steel is the ideal connection solution for demanding corrosive environments. Compliant with NF E 29.572 standards, this PN16 fitting with BSP thread can be installed on fixed equipment in the chemical, agri-food and oil...
This Guillemin symmetrical cap in copper alloys with lock and chain is specially designed for demanding firefighter and industrial applications. Its robust design guarantees perfect sealing and optimal security thanks to its integrated locking system. Ideal for protecting your...
This Guillemin symmetrical cap in copper alloys with lock and chain is specially designed for demanding firefighter and industrial applications. Its robust design guarantees perfect sealing and optimal security thanks to its integrated locking system. Ideal for protecting your...
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