Is the Manually operated butterfly valve, type 1153H suitable for seawater and demineralized water given its EPDM seals and CF8M disc?

Manually operated butterfly valve, type 1153H is suitable for seawater and demineralized water. Rationale: - Disc material CF8M (stainless steel 316) offers good corrosion resistance to seawater. - EPDM seals are chemically compatible with freshwater, demineralized water and many aqueous solutions; they resist mild alkalis but have limited resistance to oils, hydrocarbons and strong oxidizers. - Body (ductile iron with epoxy coating) provides protection against corrosion; however, in continuous seawater immersion or highly corrosive marine environments, additional external protection or a more corrosion-resistant body material may be advisable. - Operating temperature range (-20Â°C to +110Â°C) covers typical seawater and demineralized water conditions. - Certifications (PED, PZH, Bureau Veritas, DNV, ABS) support suitability for industrial and marine-related applications. Recommendations: - For long-term continuous seawater immersion or high-chloride/abrasive conditions, consider verifying compatibility of the epoxy-coated ductile iron body and fasteners, or specifying full stainless steel body/bolting to minimize corrosion risk. - Confirm EPDM compatibility if any additives, biocides, or hydrocarbons may be present in the water.

Can the Manually operated butterfly valve, type 1153H be fitted with a pneumatic actuator for automated control?

Yes. Manually operated butterfly valve, type 1153H can be fitted with a pneumatic actuator for automated control. The product description explicitly states it "can be manually opened and closed or operated by a pneumatic actuator." Before fitting, verify compatibility of the actuator mounting and flange/shaft dimensions, ensure actuator materials and seals are suitable for the media and temperature range (-20Â°C to +110Â°C) and confirm chemical compatibility with EPDM seals and stainless steel/ductile iron construction. For sizes DN250 and above consider lever/adapter differences and for DN300 note the supplied lever; obtain correct actuator coupling and any required mounting kit. Ensure compliance with PED and relevant certification requirements.

What flange standards are available for the Manually operated butterfly valve, type 1153H for different DN ranges?

Manually operated butterfly valve, type 1153H. flange standards available by DN range: - DN32 Ã· DN39: flange PN10/PN16 - DN40 Ã· DN400: flange PN10/PN16 and ASA150 (both available) - DN250 Ã· DN400: additionally available with lever with stepless adjustment; DN300 supplied with lever Uwagi: Body ENâGJSâ500â7, disc CF8M, stem AISI 304, lever aluminum, EPDM sealing. Operating temp. â20Â°C do +110Â°C. Certyfikaty: PED 2014/68/EU, PZH, Bureau Veritas, DNV, ABS.

Manually operated butterfly valve, type 1153H

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Additional information

Material	CS – steel (cast iron)

Universal butterfly valve, wafer type, centric, designed for industrial installations. Used for cold or hot water, drinking water, seawater and demineralized water, alcohols, sodium hydroxide, and other media, considering the chemical resistance of the valve material and sealing. Can be manually opened and closed or operated by a pneumatic actuator. The handle positions the valve in 9 positions: “open,” “closed,” and intermediate positions. For sizes from DN250, a lever with stepless adjustment is available. Supplied with a lever for size DN300. Complies with the PED Directive 2014/68/EU, has PZH certification and certificates from Bureau Veritas, Det Norske Veritas, and American Bureau of Shipping. Body material: ductile iron EN-GJS-500-7, coated with epoxy 250 ÷ 300 µm. Disc material: stainless steel CF8M. Stem material: stainless steel AISI 304. Lever material: aluminum. Disc and stem sealing: EPDM. Connection: flange PN10/PN16 for DN32 ÷ DN400, ASA150 for DN40 ÷ DN400. Operating temperature: from -20°C to +110°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TD-1153-032H	Butterfly valve type 1153, DN 32, manual drive	32	16	In stock	Enquiry
TD-1153-040H	Butterfly valve type 1153, DN 40, manual drive	40	16	In stock	Enquiry
TD-1153-050H	Butterfly valve type 1153, DN 50, manual drive	50	16	In stock	Enquiry
TD-1153-065H	Butterfly valve type 1153, DN 65, manual drive	65	16	In stock	Enquiry
TD-1153-080H	Butterfly valve type 1153, DN 80, manual drive	80	16	In stock	Enquiry
TD-1153-100H	Butterfly valve type 1153, DN 100, manual drive	100	16	In stock	Enquiry
TD-1153-125H	Butterfly valve type 1153, DN 125, manual drive	125	16	In stock	Enquiry
TD-1153-150H	Butterfly valve type 1153, DN 150, manual drive	150	16	In stock	Enquiry
TD-1153-200H	Butterfly valve type 1153, DN 200, manual drive	200	16	In stock	Enquiry
TD-1153-250H	Butterfly valve type 1153, DN 250, manual drive	250	16	In stock	Enquiry
TD-1153-300H	Butterfly valve type 1153, DN 300, manual drive	300	16	In stock	Enquiry
TD-1153-350H	Butterfly valve type 1153, DN 350, manual drive	350	10	In stock	Enquiry
TD-1153-400H	Butterfly valve type 1153, DN 400, manual drive	400	10	In stock	Enquiry

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Universal butterfly valve, wafer type, centric, designed for industrial installations. Used for cold or hot water, drinking water, seawater and demineralized water, alcohols, sodium hydroxide, and other media, considering the chemical resistance of the valve material and sealing. Can be manually opened and closed or operated by a pneumatic actuator. The handle positions the valve in 9 positions: “open,” “closed,” and intermediate positions. For sizes from DN250, a lever with stepless adjustment is available. Supplied with a lever for size DN300. Complies with the PED Directive 2014/68/EU, has PZH certification and certificates from Bureau Veritas, Det Norske Veritas, and American Bureau of Shipping. Body material: ductile iron EN-GJS-500-7, coated with epoxy 250 ÷ 300 µm. Disc material: stainless steel CF8M. Stem material: stainless steel AISI 304. Lever material: aluminum. Disc and stem sealing: EPDM. Connection: flange PN10/PN16 for DN32 ÷ DN400, ASA150 for DN40 ÷ DN400. Operating temperature: from -20°C to +110°C.