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Lebote (Tianjin) Testing Machinery

Lebote (Tianjin) Testing Machinery Co., Ltd.(hereinafter referred to as “the Company”) works in close collaboration with Tianjin University of Science and Technology. The Company brings together

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Hard‑shell corrugated pipe outer diameter gauge

This set of gauges is applicable to circular electrical conduit made of plastic insulating material, used for protecting and securing the wiring of wires or cables within buildings or structures.

Category:

Electrical conduit testing instrument

Keywords:

Hard‑shell corrugated pipe outer diameter gauge

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E-mail:

lbt@lbt.ltd

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Hard‑shell corrugated pipe outer diameter gauge
Hard‑shell corrugated pipe outer diameter gauge
Hard‑shell corrugated pipe outer diameter gauge
Hard‑shell corrugated pipe outer diameter gauge
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  • Hard‑shell corrugated pipe outer diameter gauge
  • Hard‑shell corrugated pipe outer diameter gauge
  • Hard‑shell corrugated pipe outer diameter gauge
  • Hard‑shell corrugated pipe outer diameter gauge

Description

Product Introduction

This set of gauges refers to all gauges used in the measurement of pipe dimensions as specified in “JG 3050-1998 Electrical Conduit.”

This set of gauges is applicable to circular electrical conduit made of plastic insulating material, used for protecting and securing wire or cable installations within buildings or structures.

Technical Specifications

1. JG3050-2 Casing Maximum Outer Diameter Gauge

JG3050-2 Maximum Outer Diameter Gauge for Conduit, Image 1 from “JG3050-1998 Electrical Conduit”;

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

2. JG3050-3 Casing Minimum Outer Diameter Gauge

JG3050-3 Minimum Outer Diameter Gauge for Conduit, Image 2 from “JG3050-1998 Electrical Conduit”;

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

3. JG3050-4 Semi-Rigid Conduit Minimum Outer Diameter Gauge; Image 4 from “JGG3050-1998 Electrical Conduit.”

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

4. JG3050-5 Casing Minimum Inner Diameter Gauge

JG3050-5 Minimum Inner Diameter Gauge for Conduit, Image 3 from “JG3050-1998 Electrical Conduit”;

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

5. JG3050-6 Thread Gauge

JG3050-6 thread gauge, image 4 from “JG3050-1998 Electrical Conduit”;

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

6. JG3050-11 Minimum Inner Diameter Gauge for Semi-Rigid and Corrugated Conduit After Bending; JG3050-11 Minimum Inner Diameter Gauge for Semi-Rigid and Corrugated Conduit After Bending, Figure 5 from “JG3050-1998 Electrical Conduit.”

Gauge specifications: 16, 20, 25, 32, 40, 50, 63.

7. JG3050-12 Minimum Inner Diameter Gauge for Bent Rigid Conduit; JG3050-12 Minimum Inner Diameter Gauge for Bent Rigid Conduit, Figure 6 from “JG3050-1998 Electrical Conduit.”

Gauge specifications: 16, 20, 25.

Related Product

HC-40 Concrete Multi-functional Strength Tester

HC-40 Concrete Multi-functional Strength Tester

The HC-40 concrete multi-functional strength tester is a high-performance testing device integrating multiple advanced technologies, specifically designed for evaluating the strength and quality of concrete.

FAQs

Q

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

A
We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects
Q

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

A
We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally
Q

Which materials can be measured by your Vicat softening point tester?

A
It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.
Q

Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

A
Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.
Q

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

A
This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.
Q

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

A
Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”
Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”
Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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