Waterproof Cable Gland Manufacturer — Factory-Direct, Bulk & OEM Supply

Waterproof Cable Glands — Factory-Direct Supply, CE & RoHS Certified

When you’re installing cables outdoors, in wet environments, or anywhere moisture is a real risk, a standard gland simply won’t hold its seal long-term. Our waterproof cable glands are built for exactly those conditions — each one tested to IEC 60529 on every production batch to confirm its rated IP level, so you’re not relying on a design claim that was only ever verified on a sample unit.

We are a waterproof cable gland manufacturer and global supplier based in Yueqing, Zhejiang, China — supplying distributors, wholesalers, and OEM partners across 50+ countries directly from our factory. Whether you need a mixed sample order or a full bulk supply arrangement, we’ll have the right gland with the certifications and documentation to match.

What is a Waterproof Cable Entry Gland

A waterproof cable gland — sometimes called a watertight cable gland or weatherproof cable gland — is a cable entry fitting specifically designed to seal against the ingress of water, moisture, and dust. Unlike a standard gland, which provides strain relief and basic cable retention, a waterproof gland incorporates an internal compression seal — typically EPDM or NBR elastomer — that forms a tight seal around the cable sheath when the gland is tightened. This is what gives it its IP rating under IEC 60529, and what makes it suitable for outdoor, marine, solar, and industrial wet-area installations. In addition to waterproofing, each gland provides mechanical strain relief — protecting the cable connection from pull-out, vibration, and movement.”

Our Waterproof Cable Gland Range

We manufacture waterproof cable glands in four variants — each suited to a different environment or application requirement. Here’s how to decide which one is right for your project.

Brass Waterproof Cable Gland

Nickel-plated, IP68 rated, and our most popular option for industrial panels, outdoor switchgear, and distribution boards.

Thread: PG7–PG48 · M12–M63 · NPT 1/4″–2″
Rating: IP68 · CE & RoHS ✓

Nylon PA66 Waterproof Cable Gland

UV-stabilised, IP68 rated, and our go-to recommendation for solar PV, outdoor junction boxes, and lightweight applications.

Thread: PG7–PG48 · M12–M63
Rating: IP68 · Colours: Black / Grey · CE & RoHS ✓

Waterproof Split Cable Gland

Opens around an existing cable to form an IP68 seal — without disconnecting or reterminating. Ideal for retrofit and live cable installations.

Rating: IP68 · Materials: Brass or nylon
Best for: retrofit & maintenance

Stainless Steel Waterproof Cable Gland

Grade 316, IP68 rated, built for marine, offshore, food processing, and anywhere brass would corrode.

Grade: 316 stainless steel · Thread: Metric
Rating: IP68 · CE & RoHS ✓

Specifications & Certifications

Here’s the technical detail you need for specifying or quoting our waterproof cable glands. If you need a full spec sheet for a specific size or material, just ask — we’ll send it straight over.

Feature	Details
IP Rating	IP65, IP66, IP67, and IP68 available; tested to IEC 60529 by batch on every production run.
Body Materials	Nickel-plated brass, 316 stainless steel, nylon PA66 (UV-stabilised, flame-retardant to UL94 V-2).
Thread Standards	PG thread (PG7–PG48), Metric thread (M12–M63), NPT thread (1/4″–2″).
Sealing Material	EPDM and NBR elastomer as standard; alternative compounds available for chemical resistance or temperature extremes.
Certifications	CE marking, RoHS compliant; certificates of conformity available with every order.
Manufacturing Standards	IEC 60670-22 (cable entry systems) · IEC 60529 (ingress protection).
Spec Sheets	Available on request per size and material.

Popular sizes: PG9, PG13.5, PG16, M16, M20, M25, M32 — full size chart available on request.”

How to Choose the Right Waterproof Cable Gland

Specifying the wrong gland for your environment is one of the most common causes of early enclosure failure — and it’s easy to avoid if you know what to look for. Here are the five things we’d ask you to confirm before placing an order.

Know your IP requirement

IP65 for outdoor/rain, IP66 for wash-down, IP67 for temporary immersion, IP68 for continuous submersion. When in doubt, go higher — most of our standard range is IP68 at no extra cost.

Choose your material

Brass for general industrial and outdoor use. Nylon PA66 for solar, lightweight, or UV-exposed applications. 316 stainless steel for marine, offshore, or chemical environments.

Confirm your thread standard

PG for Europe and Asia, metric for global ISO installations, NPT for the US and Canada. Always match the thread to your enclosure — a PG16 will not fit an M16 hole.

Match cable OD to the gland's entry range

Your cable’s outer diameter must fall within the gland’s stated cable entry range. Too small and the seal won’t compress; too large and the cable won’t pass through. Measure — don’t estimate.

Check your certification requirements

CE and RoHS cover most applications — our full waterproof range carries both. For hazardous area installations (Zone 1/2), you’ll need ATEX or IECEx — see our explosion-proof range for that.

Where Our Waterproof Cable Glands Are Used

You’ll find our waterproof cable glands across a wide range of industries and environments. Here are the most common applications we supply into — and what we’d typically recommend for each.

Solar PV & Renewable Energy

UV-stabilised nylon IP68 in M20 or PG16 — handles years of UV exposure, thermal cycling, and rain. Our most popular spec for solar EPC contractors and installers, fully RoHS-compliant.

Marine & Offshore

316 stainless steel IP68 for continuous salt air, spray, and vibration. Brass IP68 for less severe marine applications. IEC 60092-compliant variants available in our marine cable gland range.

Outdoor Industrial

Brass or nylon IP68 for switchgear, distribution boards, street lighting, and utility enclosures. We supply in bulk with full CE/RoHS documentation as standard.

Food & Beverage

316 stainless steel IP66/IP67 for wash-down environments and chemical cleaning. Standard specification in most food processing plant installations.

Submersible & Buried

IP68 required — not IP67. Our submersible cable glands are rated for continuous immersion beyond 1 metre, used in submersible pumps, underwater lighting, and buried junction boxes.

Building & Construction

Brass or nylon IP65/IP66 for external lighting, façade wiring, and plant room enclosures. Available in bulk with mixed sizes on a single order.

Why Source Waterproof Cable Glands from Difvan?

We manufacture — you don’t pay for the middleman
As a waterproof cable gland manufacturer and direct exporter, everything comes from our own factory in Yueqing. No trading companies, no agents — which means you get factory pricing, faster lead times, and the ability to speak directly to the people producing your order.

Batch IP testing on every production run
We don’t just test our designs. Every batch of our waterproof glands is tested to IEC 60529 before it leaves our factory — so when your order arrives, you know it performs to the rated IP level, not just the design specification.

Bulk, wholesale, and OEM supply as standard
We work with distributors, wholesalers, and OEM partners across 50+ countries. Whether you need a mixed sample order or a standing bulk supply arrangement, we confirm lead times, MOQs, and any custom labelling at the quotation stage — no surprises on delivery.

DIFVAN FACTORY IMAGES

Need Waterproof Cable Glands from a Trusted Manufacturer?

Whether you’re a distributor looking to add a reliable wholesale supply source, an OEM partner with custom specifications, or a contractor pricing a bulk order — we’re set up to help. Tell us your installation environment, cable size, thread standard, IP rating, and quantity, and we’ll respond with factory pricing, lead time, and availability within 24 hours. We’ve exported waterproof cable glands to buyers in 50+ countries and we’re happy to help you get the spec right before you commit.

Questions We Get Asked About Waterproof Cable Glands

Common questions from distributors, OEM buyers, and electrical engineers sourcing cable glands from Difvan.

What is the difference between IP67 and IP68 cable glands?

IP67 means the gland is protected against temporary immersion in water up to 1 metre for 30 minutes. IP68 means continuous immersion beyond 1 metre — the depth and duration are defined by the manufacturer in the product specification. For most outdoor, marine, and industrial applications, IP67 is sufficient. You only need IP68 when there is a genuine risk of prolonged or deep submersion — underwater equipment, buried installations, or submersible pump systems. Since most of our standard waterproof cable glands are rated IP68 as a minimum, you’re covered either way.

Can I use a waterproof cable gland with any cable type?

Yes — waterproof cable glands work with unarmoured cables, armoured cables, and flexible cables, as long as the cable’s outer diameter falls within the gland’s stated cable entry range. For armoured cables (SWA), you’ll need our armoured waterproof variant, which provides double compression to seal against both the outer sheath and the armour layer. If you’re not sure which variant suits your cable construction, send us the cable spec and we’ll confirm.

Are you a waterproof cable gland manufacturer or a trading company?

We are the manufacturer — everything we sell is produced in our own factory in Yueqing, Zhejiang, China. We are not a trading company or agent. This matters to bulk buyers and wholesale distributors because it means lower prices, full control over production quality, and the ability to provide original manufacturer certifications — not third-party re-issued documents. If you need to verify our factory before placing an order, we can arrange a video call, share our ISO 9001 documentation, or connect you with one of our existing distributor references.

Do waterproof cable glands need any maintenance once installed?

In most installations, no. A correctly sized and properly installed waterproof cable gland with an EPDM or NBR seal should perform reliably for the life of the installation without intervention. That said, it’s good practice to inspect glands in extreme environments — prolonged UV exposure, chemical contact, or wide temperature cycling — every few years, as elastomer seals can degrade over time. If you see cracking or deformation on the seal, replace the gland rather than just the seal insert.

Do you offer wholesale pricing on waterproof cable glands?

Yes — we offer wholesale pricing for distributors, wholesalers, and repeat bulk buyers. Pricing is tiered by quantity — the more you order, the better the unit price. Send us your required sizes, quantities, and target price and our team will respond with a factory-direct quote within 24 hours. We can also set up standing supply arrangements for ongoing project requirements.

What is the lead time for a bulk order of waterproof cable glands?

For standard catalogue sizes, lead time is typically 7–15 working days for most bulk orders depending on quantity. For OEM or custom specification orders, lead time is confirmed at the quotation stage after sample approval. We’ll always give you a confirmed production and shipping date before you commit — no vague estimates. If you need faster delivery, ask us about available stock when you enquire.

Can you supply waterproof cable glands in mixed sizes on a single bulk order?

Yes — we regularly supply mixed bulk orders across multiple sizes and materials in a single shipment. This is common for infrastructure projects, electrical contractors, and distributors who need a range of PG, metric, and NPT sizes together. Send us your full bill of materials and we’ll quote the complete order at once — no need to place separate orders per size.

Phone +86 139 8977 1240

WhatsApp +86 139 8977 1240

Email helen@difvan.com

Factory Address DIFVAN Co., Ltd.
No.1 HongQi Road, Xinguang Industrial Zone,
Liushi, Yueqing, Wenzhou, Zhejiang, China 325603

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