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DSZH Fitting for inch hoses 1/4" - HVAC Tools
DSZHHVAC Tools

DSZH Fitting for inch hoses 1/4"

DSZH brass fitting for 1/4 inch hoses in HVAC refrigeration systems. Rated for fluid group II with nominal bore DN4.5, compatible with R22, R134a, R404, R407C, R410, and R507 refrigerants. Designed for connection and…

SKU 3G-CBM-01595

Also listed as: COR 50121 · COR-50121

Brand
DSZH
Item
Fitting for inch hoses 1/4"
Category
HVAC Tools
UNSPSC
41112509 — Air velocity and temperature monitors
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

DSZH
material
brass
fluid group
II
nominal bore
DN4.5 (1/4 in)
refrigerants
R22, R134a, R404, R407C, R410, R507

Datasheet Content

DECLARATION OF CONFORMITY, BRASS NUTS The Pressure Equipment Directive 2014/68/EU, The RoHS 2 Directive 2011/65/EU rev 04 dated 19/07/2016 Description of pressure equipment Brass nuts Models NS-4, NS-5, NS-6, NS-8, NRS4-64, NRS4-65, NRS4-86, NRS4-108, NRS4-1210, NRS4-1614, NS4-4, NS4-4M6, NS4-5, NS4-6M6, NS4- 5M8, NS4-6, NS4-6M8, NS4-6M10, NS4-8, NS4-8M10, NS4-8M12, NS4-10, NS4-10M12, NS4-10M14, NS4-10M16, NS4-12, NS4- 12M14, NS4-12M16, NS4-12M18, NS4-14, NS4-14M22, SFC-4, SFC-6, 'SFC-8, SFC-10 Classified for Fluid group Il, R22, R134a, R404, R407C, R410, R507 (non-taxie and non-flammable refrigerants) Nominal bore DN4,5 (1/4 in), DN8 {3/8 in), DNlO (1/2 in), DN13 {5/8 in), DN16 {3/4 in) and DN19 {7/8 in) Temperature range ° ° ° -40° C / +150 C {-40 F / 302 F) Maximum allowable working pressure {PS) 45 bar {650 psi) Burst pressure > 3 X PS Declaration We hereby declare that mentioned equipment for fluid group Il are covered by Article 4, paragraph 3 of The Pressure Equipment Directive 2014/68/EU effective from July 19 th' 2016. Compliance with EU Directive 2011/65/EU (RoHS) This product conforms to the restriction of the used lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls 1h {PBB), and polybrominated diphenyl ethers {PBDE) as described in Directive 2011/65/EU of June 8 2011 and subsequental emendaments Reference of the Technical Standards and Specification used EN 378, EN 12284, EN 16084 Material Copper alloys compliant to standards EN 12164, EN 12165, and EN 12449 Name ing. Andrea Pe Date 19/07/2016

Technical Documents

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DSZH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

DSZH brass fitting for 1/4 inch hoses in HVAC refrigeration systems. Rated for fluid group II with nominal bore DN4.5, compatible with R22, R134a, R404, R407C, R410, and R507 refrigerants. Designed for connection and control applications in cooling equipment.

Frequently Asked Questions

What is the DSZH fitting for inch hoses 1/4" used for?

The DSZH brass fitting for 1/4 inch hoses is used in HVAC refrigeration systems for connecting and controlling cooling equipment. It is compatible with refrigerants such as R22, R134a, R404, R407C, R410, and R507, and is rated for fluid group II applications.

What are the specifications of the DSZH 1/4" hose fitting?

The DSZH fitting is made of brass with a nominal bore of DN4.5 (1/4 in). It has a maximum allowable working pressure of 45 bar (650 psi) and a temperature range of -40°C to +150°C. It complies with the Pressure Equipment Directive 2014/68/EU and RoHS 2 Directive 2011/65/EU.

Where to buy DSZH fittings in Singapore?

You can source DSZH fittings for 1/4 inch hoses in Singapore through 3G Electric. We handle logistics, customs clearance, and delivery to your facility, providing technical support for HVAC applications. Contact us for pricing and lead time on orders.

How to install the DSZH brass fitting for 1/4" hoses?

To install the DSZH brass fitting, ensure the hose end is clean and cut square. Tighten the nut by hand, then use a wrench for a secure seal—avoid over-tightening to prevent damage. Always follow standard refrigeration practices and check for leaks after installation.

Used in

Common applications for DSZH
Split-system air-conditioner service: DSZH manifold bases and SAE/NPT reducers integrate with technician gauge sets for pressure monitoring and refrigerant charge.
Rooftop packaged unit maintenance: Flare connector caps, hose tips, and union fittings expedite field replacement of damaged lines and adapters on commercial cooling systems.
Refrigerant recovery and recycling: DSZH bottle adapters (R600A-rated) connect recovery cylinders to hose lines, enabling safe extraction of flammable and standard refrigerants.
Process-cooling loop installation: SAE straight male/female unions and reducers support temporary or permanent manifold assembly on industrial water-chilled equipment.
Heat-pump seasonal service: DSZH dudgeon extensions and adapter kits allow technicians to connect diagnostic gauges to restricted or recessed access ports on reversing-valve manifolds.
Field emergency repairs: Individual DSZH fittings stocked in stock allow technicians to repair or modify hose connections on-site without returning to the shop for components.

DSZH Products

3G Electric supplies DSZH hvac tools. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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