Specifications

stainless steel ball valve
1.Flange end
2.Trunnion Mounted type
3.Two pieces body
4.API certificate

 

stainless steel ball valve

 

 

 

Class150 cast steel trunnion type ball valve
Characteristics of API Ball Valve
1. Design and manufacture of product according to American state standard ANSI B16.34, American petroleum institute standard API608 API6D.
2. Liquid resistance smallest of all type of valve.
3. Open quickly, only turn on 90 degree may finish open and close.
4. Seat material use teflon or R-teflon, low friction, seal reliable open and close lightly.
5. Movement of ball on the middle of valve seat has wipe function so may suit medium of suspending granule.
6. Stem use back seal and hyperbatic structure which may prevent medium to striking stem on the condition of pressure.
7. According to the need of consumer, may design for anti-static electricity, fireproof and use a locker to prevent wrong operator.
8. Body of ball can be floated or fixed accordance with the of strength of opening and closing. Seat of fixed ball valve floatable realize seal purpose depend on piston effect of medium pressure so to lighten the strength of open and close.

 

STD (Fire -Proof,Electricity Protect)

Type	Desing And Manufacture	Face to face /End to end	Flange Dimension	Pressure and Temperature	lnspection and test
Split flange ball valve	BS5351 API6D	ASME B16.10	ASME B16.5	ASME B16.34	API598
Fixed flange valve					API6D

Pressure Test

Nominal Pressure	Shell Test		Water Seal Test		Air Seal Test
	MPa	Lbf/in2	MPa	Lbf/in2	MPa	Lbf/in2
150	3.1	450	2.2	315	0.5-0.7	60-100
300	7.8	1125	5.6	815
600	15.3	2225	11.2	1630
900	23.1	3350	16.8	2440
1500	38.4	5575	28.1	4080