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Zhejiang Dongrun Casting Industry Co,.Ltd

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Supplier Homepage > Products > Pipe Fittings
Pipe Fittings
Click on the image to check the artwork
product: view count: 372Pipe Fittings 
unit price: Negotiable
min amount:
period for delivery: Consignment Deadline days
Expiry date: Long Effective
last update: 2017-08-27 11:50

DONGRUN CASTING is one of the leading pipe fittings manufacturers and suppliers in China. We have customized pipe fittings made in China, welcome to check the quotation with our factory.

Product Introduction
The Pipe Fittings are done by Gravity die casting process or Low Pressure Casting process, then do CNC machining process to clients' demands and requirements. Customers' designs and projects are welcome. We can offer our good casting productions to your company. Please feel free to contact us for more OEM / ODM details.
Pipe Thread

Two common pipe thread sizes exist, the tapered National Pipe Thread (NPT) and the straight National Standard Free-Fitting Straight Mechanical Pipe Thread (NPSM). The tapered threads are for joining and sealing, the straight threads are only for joining. The Dry-seal thread (NPTF) allows for joining without sealants. Three less common threads exist, the Garden Hose Thread (GHT), Fire Hose Coupling (NST) and British Standard Taper Pipe Thread (BSPT). The NPT and NPTF threads are interchangeable with sealants such as PTFE tape. None of the other thread standards are interchangeable. Female NPT threads can be designated as "FPT" and male NPT threads can be designated as "MPT."  Pipe sizes do not refer to any physical dimensions. The outside diameter of each pipe or fitting must be measured and compared to the table for size identification. For example, a 3/4" NPT pipe thread has an outside diameter of 1.050 inches. Each thread size has a defined number of threads per inch (TPI). The 3/4" NPT pipe thread has 14 threads per inch. Both the TPI and OD of the thread are required for positive identification of thread size because several sizes have the same TPI. 

Factory Capabilities


1.Sand casting&Gravity casting&Low pressure die casting:
A356/A319/A413/ZL101/ZL102/ZL104/ZL107/LM6//LM/20/LM25/EN  AC-42100/EN AC-42200/EN AC-43000/ EN AC-43200/EN AC-43300/EN AC-43400/EN AC-44200/EN AC-44300/EN AC-46000/EN AC-46200
2.High pressure die casting:
A380/A390/A360/ADC10/ADC12/ENAC-43400/ENAC-44300/ENAC-44400/ENAC-46000/ENAC-46100/ENAC-46200/ ENAC-46500/ENAC-47100
3.CNC machining casting: 6061-T6/6063-T6


Sand casting, Gravity casting, high pressure die casting, low pressure die casting and CNC Machining casting.


  • As per the customer’s drawings

  • As per the customer’s samples

Equipment of Casting

  • High pressure die casting machining: 125T/180T/250T/280T/500T/800T/1250T

  • Gravity casting machine: 5 production lines

  • Low pressure die casting machining: 1 production line

  • Sand casting machine: 6 production lines

  • Degassing equipment and opportunities to refine the material

  • Machining: 6Sets CNC Machine;5 sets Milling machine; 3 sets Turning machining; 20sets drill and tap machine

Testing facility

spectrometer, tensile test machine, hardness test machine, CMM dimension report




ASTM, DIN,JIS, EN, ISO, GB standards


Pro/E,UG, Solidworks, Auto CAD, PDF

Precision machining

CNC turning, milling, drilling, grinding, cutting, reaming and threading


Polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, Chrome plating, mirror polishing.


OEM service available.


All kinds of aluminum casting: include automotive parts, railroad parts, medical parts, marine parts, lighting parts, pump body, valve parts, architectural parts and furniture parts so on


  • More than 20years in castings;

  • Have four casting types;

  • Transportation Advantage:

A)Near Sea Port and Air Port-Ningbo Sea Port and Yiwu Airport or Hangzhou Airport;
B)From Shanghai to our factory by Fast train directly, takes two and half hours; From Hangzhou to our factory, only takes one hour

  • Passed ISO9001:2008/Rosh/SGS/BV

  • From Casting to Finished surface, Owned casting, polishing and plating workshops, We can offer Good quality and strict delivery time.

  • With samples and order: We can offer dimension report, Chemical composition and Mechanical properties

  • Control material with spectral and thermal analysis equipment (density and processing)

  • Spectral analysis of raw material and liquid melt, batch before casting.


  • Foundry in-house

  • Third Party inspection available upon requirement


Carton Box with Pallet/Wooden Box/Steel Pallet

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