OKQ sulfur resistant ball valve is based on the needs of users. In order to meet the requirements of anti sulfurization on-site cracking in vulcanization environment, the design, material selection, manufacturing, test, surface treatment and painting of OKQ sulfur resistant ball valve are strictly in accordance with the relevant standards of NACE. OKQ sulfur resistant ball valve not only has a wide range of materials, but also its internal parts are made of nickel plated or 316 material, and the sealing ring is made of special polymer material. The valve is not only anti-corrosion, strong anti sulfide ability, fire-proof, anti-static, sealing performance is good, applicable pressure and temperature range is wide, full diameter and shrinkage are complete, and can be equipped with a variety of drive devices, is the ideal valve selection for chemical, petroleum refining, oil and gas production and transportation system.
Nominal diameter: DN50 ～ 400mm2 ～ 16
Diameter reduction: DN50 ～ 450mm 2 ～ 18
Nominal pressure: pn2.5 ～ 10.0MPa
CLASS：150～900Lb
Applicable temperature: - 196 ℃ ~ 300 ℃

OKQ sulfur resistant ball valve is based on the needs of users. In order to meet the requirements of anti sulfurization on-site cracking in vulcanization environment, the design, material selection, manufacturing, test, surface treatment and painting of OKQ sulfur resistant ball valve are strictly in accordance with the relevant standards of NACE. OKQ sulfur resistant ball valve not only has a wide range of materials, but also its internal parts are made of nickel plated or 316 material, and the sealing ring is made of special polymer material. The valve is not only anti-corrosion, strong anti sulfide ability, fire-proof, anti-static, sealing performance is good, applicable pressure and temperature range is wide, full diameter and shrinkage are complete, and can be equipped with a variety of drive devices, is the ideal valve selection for chemical, petroleum refining, oil and gas production and transportation system.
Nominal diameter: DN50 ～ 400mm 2 "～ 16"
Diameter reduction: DN50 ～ 450mm 2 "～ 18"
Nominal pressure: pn2.5 ～ 10.0MPa
CLASS：150～900Lb
Applicable temperature: - 196 ℃ ~ 300 ℃
Performance and specification

OKQ341F Main performance and specification of sulfur resistant ball valve PN25 ～ PN100

Nominal pressure PN(Mpa)	Test pressure(Mpa)			Test pressure	Test pressure(Mpa)
	housing	High pressure liquid seal	Low pressure gas seal		housing	High pressure liquid seal	Low pressure gas seal
2.5	3.75	2.75	0.6	CLASS150	2.94	2.16	0.6
4.0	6.0	4.4		CLASS300	7.76	5.62
6.4	9.6	7		CLASS600	15.3	11.23
10.0	15	11		CLASS900	23	16.85

Parts material and parameters

OKQ341F Materials and parameters of main parts of sulfur resistant ball valve PN25 ～ PN100

Main models		Part name	texture of material
			carbon steel	Low temperature steel	stainless steel
OQK41/7E OQK341/7E OQK641/7E OQK941/7E		valve body	A105	A350LF2	A182 F316
		sphere	A105+plate with nickel	A350LF2	A182 F316
		Stem, fixed shaft	45/40cr+plate with nickel	42CrMo+plate with nickel	A182 F316
		valve seat	A105+plate with nickel	A350LF2+plate with nickel	A182 F316
		seal ring	Enhanced polytetrafluoroethylene para polyphenylene
		O-ring	Fluororubber
		Gasket and packing	Flexible graphite v-ptfe
		axle sleeve	SFSelf lubricating bearing
		Bolt		A193 B7M	316
		Nut	A194 2HM	A194 7M	316
answer use gauge Fan	The length of structure is determined by
	Flange size according to	JB79～59    GB9113    HG20592～9    ANSI B16.5
	Welding standard according to	GB12221～89    ANSI B16.25
	Inspection and test according to	GB/T13927    JB/T9092～99    API598
	Fire test according to	API 607     BS6755 II

 

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.
Note: our company is a professional valve manufacturer in Shanghai. The types of valves produced are regulating valve, ball valve, butterfly valve, gate valve, pressure reducing valve, check valve, drain valve, stop valve, plug valve, safety valve, throttle valve, hydraulic control valve, etc. ball valve is divided into electric ball valve, pneumatic ball valve, manual ball valve, high pressure ball valve, three-way ball valve, float valve, stainless steel ball valve, hard seal ball valve, etc, Engineers have decades of professional experience, welcome to call to negotiate business!