Medium Pressure Valves
Pressures to 21,000 psi
MAXIMATOR medium pressure valves with metal to metal seats have a high level of safety and reliability under adverse operating conditions. These valves may be used both with gases and liquids. Traceability is ensured through extensively documented data (batch number, maximum pressure, material number, type designation). All medium pressure valves include glands and collars. Styles /2-Way Straight /2-Way Angle /3-Way – 2 on Pressure /3-Way – 1 on Pressure /3-Way – 2-Stem Manifold /2-Way Angle – Replaceable Seat

Ordering Information

Typical catalog number: 21V4MO71

21V 4M 07 1 OPTIONS

Valve Series O.D. Tube Size Stem Type Body Pattern Extreme temperature option, see below. 21V 4M – 1/4" 6M – 3/8" 9M – 9/16" 12M – 3/4" 16M – 1" 07 – VEE stem 08 – REGULATING        stem        (tapered tip for        regulating and        shutoff) 87 – VEE stem with        replaceable seat 88 – REGULATING        stem with        replaceable        seat 1 – two-way straight 2 – two-way angle 3 – three-way,      two on pressure 4 – three-way,      one on pressure 5 – three-way,      two-stem      manifold

 

Special Designs for Extreme Temperatures

Standard valves are supplied with Teflon/Carbon packing
and may be operated to 450°F. High temperature packing and/or extended stuffing box are available for service from -423°F to 1200°F by adding the following suffixes to catalog order number.

- TG	standard valve with teflon glass packing to 600°F.
- GY	standard valve with graphite braided yarn packing to 800°F.
- HT	extended stuffing box valve with graphite braided yarn packing to 1200°F.
- B	standard valve with cryogenic trim materials and Teflon packing to -100°F.
- LT	extended stuffing box valve with teflon packing and cryogenic trim materials to -423°F.

 

Repair Kits

Consult your HPT representative for repair kits and valve bodies. Refer to the Tools and Installation section for proper maintenance procedures.

O.D. Size (in.) Connection Type Orifice Size (in.) Rated Cv* Pressure/Temp. Rating (psi @ R.T.)** 1/4 4MF 0.125 0.31 21,000 3/8 6MF 0.219 0.75 21,000 9/16 9MF 0.312 1.30 21,000 3/4 12MF 0.438 2.50 21,000 1 16MF 0.562 4.40 21,000
* Cv values shown are for 2-way straight pattern vee stem valves. For 2-way angle patterns, increase the Cv value by 50%. ** See page 2 in the Technical Section for Pressure/Temperature Rating Chart.