The Q22HD is a 2/2 way pneumatic control valve from KLQD · Ningbo Kailing Pneumatic — a brass-body, air-piloted globe valve for compressed air, oil, water and steam. It covers DN10–50 with a 0–1.0 MPa pressure range and needs no electricity at the valve body, making it inherently safe for oil & gas, chemical and power plant service.
Direct Answer
The Q22HD is a 2/2 way pneumatic control valve from KLQD · Ningbo Kailing Pneumatic — a brass-body, air-piloted globe valve for compressed air, oil, water and steam. It covers DN10–50 with a 0–1.0 MPa pressure range and needs no electricity at the valve body, making it inherently safe for oil & gas, chemical and power plant service.
FAQ
Eight buyer questions covering industry applications, media compatibility, electric vs pneumatic comparison, DN sizing, brass vs stainless steel selection, pilot pressure requirements, buyer profiles, and OEM customization.
Frequently Asked Questions
- FAQ What industries use the Q22HD most?
Oil & Gas, Chemical Processing, Power Generation, plus water treatment, marine, pharmaceutical and metallurgy. - FAQ What media can the Q22HD handle?
Compressed air, hydraulic oil, water, saturated steam, natural gas. Not for strong acids or alkalis. - FAQ How does it compare to an electric solenoid valve?
Q22HD uses pilot air with no electricity — inherently explosion-safe. Globe-style metal seat shutoff vs poppet/diaphragm. - FAQ What DN sizes are available?
DN10 to DN50 in seven sizes from instrument air to main shutoff. - FAQ Why brass? When choose stainless steel?
Brass offers excellent cost-to-performance. Machined from billet at Kailing Fenghua. Choose SS for aggressive media. - FAQ What pilot pressure does it need?
0.3–0.8 MPa clean dry instrument air. Pilot circuit isolated from media. - FAQ Who typically buys the Q22HD?
MRO procurement, OEM skid builders, EPC engineers, industrial distributors. - FAQ Can Kailing customize it for OEM?
Yes. Thread, seal, pilot orientation, branding. Review in 1–2 business days.
Need a quotation?
Send the page link, quantity, drawings and working conditions to Kailing for review.