1. Design and manufacture: GB / t12237989; apl608.
2. Inspection and test: GB / t13927992; APL 598.
3. Flange connection: JB / t79-2994; ASME / ANSI b165.

1. Small fluid resistance: the cross-section of the connecting pipe between the ball and the valve body is equal, and the ball channel is connected by arc. When the medium passes through the ball, the fluid resistance is small.
2. Good sealing performance: the valve seat adopts PTFE material with certain elastic deformation and high strength to achieve good sealing performance and ensure the stability of the valve.
3. Long service life: the valve core and smooth neck material is austenitic stainless steel, and the valve seat material is PTFE, which can achieve good corrosion resistance and prolong the service life of the valve.

Q646FTest pressure of pneumatic four way flange ball valve（Mpa）

Nominal pressure PN	Maximum at normal temperature working pressure	housing Test pressure	Airtight seal Test pressure	High pressure seal Test pressure
1．6	1．6	2．4	0．6	1．76
2．5	2．5	3．8	0．6	2．75
4．0	4．0	6．0	0．6	4．4
C1aSSl50	2．0	3．0	0．6	2．2

 

Q646FApplication scope of pneumatic four way flange ball valve

Shell material	Seat material	Applicable temperature	Applicable media
Carbon steel type C	teflon	≤150℃	Water vapor
	Para polyphenylene	≤300℃	Oil crystal, etc
	teflon	≤150℃	Nitric acid
	Para polyphenylene	≤200℃
R-type Cr Ni Mo Ti steel	teflon	≤150℃	Acetic acid
	Para polyphenylene	≤200℃

Q646FApplication scope of pneumatic four way flange ball valve

Shell material	Seat material	Applicable temperature	Applicable media
Carbon steel type C	Nitric acid	≤150℃	Water vapor
	Para polyphenylene	≤300℃	Oil crystal, etc
P-type Cr Ni Ti steel	teflon	≤150℃	Oil crystal, etc
	Para polyphenylene	≤200℃
R-type Cr Ni Mo Ti steel	R-type Cr Ni Mo Ti steel	≤150℃	Acetic acid
	Para polyphenylene	≤200℃

 1. Installation must be careful, do not hit the valve.
2. Before installation, the ball valve should be inspected to check the specification and model, and identify whether there is damage, especially for the valve stem. Also turn a few times to see if it is skewed, because during transportation, it is easy to bump the stem. Also remove the debris in the valve.
3. When lifting the ball valve, the rope should not be tied to the hand wheel or the valve stem to avoid damage to these parts, but should be tied to the valve body.
4. The pipeline connected to the ball valve must be cleaned. Compressed air can be used to blow away iron oxide chips, mud and sand, welding slag and other impurities. These debris, not only easy to scratch the sealing surface of the ball valve, in which large particles of debris (such as welding slag), but also block the small valve, so that its failure.
5. The position of valve handle rotation should be reserved during installation. 6. The ball valve cannot be used as throttling. 7. The ball valve with transmission mechanism shall be installed vertically.