Product Details

Worm gear full bore oil and gas floating valve

Standard ball valves ,OEM valve parts as your drawings,all available here in Densen!

Technical Parameter for fully welded ball valve:

Nominal Diameter: DN20~DN1400

Nominal Pressure: 1.6-4.0MPa

Applicable temperature: -40~200℃

Connection Type: Butt welded/Flanged/Threaded/ Threaded flange

Operation: Manual/with gear/electrical/worm gear/pneumatic/hydraulic

Standard: GB/T12237-2007,API6D,ASME B16.34,ISO 9001,KC,TS.

Fully welded ball valve advantages:

1. Integral seamless steel tube pressed full-auto welded without leaking outward.

2. PTFE+25% carbon fiber and disc spring feely compensating structure zero leakage.

3. Directly buried without need of a high ground well,saving the engineering cost.

4. Both valve and pipeline are made of the same material, without the condition of uneven stress.

5. Multiple connection combination , fire and electrical prevention design, using in the special working conditions.

6. Maintenance-free for 20 years.

Specification Sheet:

Type of construction

Normal; Resist SSC; Welded flange ball valve; Heating ball valve; Gas ball valve;

Pipeline ball valve; Buried design ball valve

Fully welded ball valve operated

N/A for lever operated; Electro-hydraulic operated; Pneumatic operated;

Pneumatic operated with manual; Hydraulic operated;

Hydraulic operated with manual; Pneumatic-Hydraulic operated;

General electric operated; Explosion-proof electric operated

fully welded ball valve type

Normal; Resist SSC; Welded flange ball valve; Heating ball valve; Gas ball valve;

Pipeline ball valve; Buried design ball

Test

(1)Shell Hydrostatic Test

ANSI B 16.34 Section7.1
Valve Size NPS	Test pressure	Test Time. Sce
Below DN 50	1:5 times the 100°F	15 Sce
DN 65~DN 200	Rating of ANSI Class	60 Sce
Up DN 250	Max. Operating Pressure	180 Sce
	Test pressure should be above 1.5 times than the valve's Max work pressure (100F)

(2) Seal Hydrostatic Test

The pressure should be more 1.1 times than working pressure by seal hydrastatic test

ANSI B 16.34 Section 7.2
Valve Size NPS	Test pressure	Test Time. Sce
below DN50	1:1 times the 100°F	15 Sce
DN65~DN200	Rating of ANSI Class	30 Sce
above DN250	Max. Operating Pressure	60 Sce
	Test pressure should be more 1.5 times than the valve's Max work pressure (100F)	180Sce

(3) Seal Air Test

Seal air leakage test is based on 80PSIG(6kgf/cm2) inert-gas or the air reach the test pressure, then close

the valve. after that check the valve whether it is leakage or not.

Quality control

Quality Control

Professional precision manufacturer for more than 10 years.

1. Quality control: The defective products rate is 0.1%. Imported material 100%.

2. Experienced &Responsible QC that you can reply on.

3. Each part would be given 100% test and tryout before shipment.

4. Adequate supply capacity. Punctual delivery time.

5. Best after sales service is provided.

Production process

Our Services

What New Densen can do for our worldwide customers:

New densen supply the ball valves, check valves, globe valves, butterfly valves and ANSI,

DIN, JIS, GOST standard gate valves, valve parts and casting ,forging products. If you need Non- standard products , according to your drawing, we can produce the products as your

request.