Adjustable Constant Torque Perforated Hose Clamp Water and Air Lines, Spring Washer, American Type, Stainless Steel, 32-54 mm, Automotive Parts, China Fastener

Basic Specifications

Model NO.

WPC B15.8 D32-54 W4

Material

W4 Stainless Steel

Packaging

Plastic Bag in Box, Box on Pallet

Supplier

Factory

Product Series

WPC

Bandwidth

15.8 mm (0.62")

Clamping Range

32 mm - 54 mm (1.26"-2.13")

Band Thickness

0.80 mm (0.032")

Origin

China

Constant Torque Perforated Worm Drive Hose Clamps (WPC)

The American-type Constant-Torque hose clamp is a heavy-duty stainless steel worm drive hose clamp engineered with a Belleville washer design and an extended inner liner.

The washer design functions as a constant tension spring, allowing automatic increases or decreases of the clamp diameter in relation to variations in operational or environmental temperatures. The extended inner liner protects all types of hoses from damage.

Material, clamping range, and logo can be stamped on the band. Additional sizes are available upon enquiry.

Diameter Range Reference

mm	inch
25-45	0.98-1.77
32-54	1.26-2.13
45-67	1.77-2.64
57-79	2.24-3.11
70-92	2.76-3.62
83-105	3.27-4.13
95-117	3.74-4.61
108-130	4.25-5.12
121-143	4.76-5.63
134-156	5.28-6.14
146-168	5.75-6.61
159-181	6.26-7.13
172-194	6.77-7.64
184-206	7.24-8.11
197-219	7.76-8.62
210-232	8.27-9.13

Material Specifications

Material Code	Corrosion Resistance	Material Composition
W2	Average	Carbon Steel Zinc Plated Screw; 200/300 Series Stainless Spring Washer, Housing and Band
W4	High	All 200/300 Series Stainless Steel

Key Applications

Used to secure hoses onto fittings or pipes.
Ideal for applications with temperature changes or pressure fluctuations.
Commonly used in automotive cooling and heating systems.
Suitable for industrial machinery and equipment connections.
Helps prevent leaks in air, water, and oil lines.
Provides constant sealing pressure even when materials expand or contract.

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Manufacturing Excellence: We understand the balance of quality and cost-efficiency. Our mission is to provide products that exceed industry standards through exceptional manufacturing quality and efficiency.

Explore Our Range

Worm Drive Hose Clamps: Exceptional clamping force for automotive and industrial settings.

Heavy-duty Band Clamps: Designed for high pressure and tough environments.

Ear Clamps: Single or double ear design for permanent, tamper-proof connections.

One-piece Clamps: Seamless design for consistent pressure distribution.

CV Boot Clamps: Secure fit for automotive CV boots to prevent grease leakage.

Retaining Clamps: Versatile holding for various environmental conditions.

No-hub Couplings: Flexible, leak-proof connections for plumbing and drainage.

Frequently Asked Questions

What makes Constant Torque Clamps different from standard clamps?

Unlike standard clamps, Constant Torque clamps feature a Belleville washer spring mechanism that automatically adjusts the clamp diameter to maintain consistent pressure during temperature fluctuations.

Why is the extended inner liner important?

The extended inner liner covers the perforations in the band, protecting soft hoses from being sheared or pinched during installation and operation.

Are these clamps suitable for marine environments?

Yes, our W4 series is made entirely of 200/300 series stainless steel, providing high corrosion resistance suitable for marine and harsh industrial applications.

What industries commonly use WPC clamps?

They are widely used in automotive cooling systems, heavy-duty truck engines, industrial machinery, and any application where thermal expansion and contraction occur.

Can I get a custom size or logo?

Yes, we can stamp custom logos and provide specific clamping ranges or material codes based on your technical requirements and enquiry.

How do I choose between W2 and W4 materials?

Choose W2 for general-purpose applications where cost-efficiency is a priority. Choose W4 for environments requiring superior corrosion resistance and long-term durability.