Q341Y、Q341FType PN16 ～ PN40 manual worm gear ball valve PN16 ～ PN40 is worm gear transmission, flange connection, floating ball straight through structure, valve seat sealing surface material is PTFE, reinforced PTFE plastic (q341f), metal surfacing cobalt base (q341y), nominal pressure PN16 ～ PN40, valve body material is WCB, CF8, CF8M ball valve, widely used in all walks of life.

Q341Y、Q341FPerformance parameters of type PN16 ～ PN40 manual worm gear ball valve

model	PN	working pressure /MPa	Applicable temperature /℃	Applicable media
Q341F-16C	16	1.6	≤180	Water, gas and oil
Q341F-25	25	2.5
Q341F-40	40	4.0
Q341Y-16C	16	1.6	≤425	Granular media in water, gas and oil
Q341Y-25	25	2.5
Q341Y-40	40	4.0
Q341F-16P	16	1.6	≤180	Nitric acid
Q341F-25P	25	2.5
Q341F-40P	40	4.0
Q341Y-16P	16	1.6	≤450	Granular media in water, gas and oil
Q341Y-25P	25	2.5
Q341Y-40P	40	4.0
Q341F-16R	16	1.6	≤180	Nitric acid
Q341F-25R	25	2.5
Q341F-40R	40	4.0
Q341Y-16R	16	1.6	≤450	Granular media in water, gas and oil
Q341Y-25R	25	2.5
Q341Y-40R	40	4.0

Q341Y、Q341F Type pn16-pn40 manual worm gear ball valve parts material

model	Material Science
	valve body	Stem	Sealing surface	filler
Q341F-16C	WCB	2Cr13 304 316 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti	PTFE、enhance PTFE	PTFE
Q341F-25
Q341F-40
Q341Y-16C			Cobalt base metal surfacing	Flexible graphite
Q341Y-25
Q341Y-40
Q341F-16P	CF8	304	PTFE、enhance PTFE	PTFE
Q341F-25P
Q341F-40P
Q341Y-16P			Cobalt base metal surfacing
Q341Y-25P
Q341Y-40P
Q341F-16R	CF8M	316	PTFE、enhance PTFE	PTFE
Q341F-25R
Q341F-40R
Q341Y-16R			Cobalt base metal surfacing	Flexible graphite
Q341Y-25R
Q341Y-40R

Q341Y、Q341F Shape and structure dimension of PN25 manual worm gear ball valve（mm）

DN	L	D	H	重量/kg
125	320	245	542	110
150	360	280	572	130
200	457	335	638	200
250	533	405	828	245
300	610	460	948	500

 

Q341Y、Q341F Shape and structure dimension of PN25 manual worm gear ball valve（mm）

DN	L	D	H	weight/kg
100	305	230	528	90
125	381	270	547	130
150	403	300	592	170
200	419	360	791	250
250	568	425	926	385
300	648	485	948	625

Q341Y、Q341F Shape and structure dimension of PN40 manual worm gear ball valve（mm）

DN	L	D	H	weight/kg
100	305	230	528	95
125	381	270	547	135
150	403	300	592	175
200	419	375	791	265
250	568	445	926	524
300	648	510	948	665

 

1. Be careful in installation and construction, and 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.