Needle Valves & Manifold Valves

We manufacture & export a wide range of Forged / Bar Stock Needle Valves, Forged Body Needle Valves and Brass Needle Valves as per the industry standards & specifications. These needle valves are manufactured utilizing advanced manufacturing methods & pass through stringent quality tests at every stage of production.

Features

Pressure rating up to 5000 psi(340 bar) at 380C (1000F). Temperature rating from -530C (-650F) to 2320C (4500F) with standard PTFE packing, up to 3150C (6000F) with Grafoil packing. Materials: Standard 316SS and Brass. (Other materials are available on request as factory specials). Forged body with straight and angle pattern. Panel mounting without packing disruption. Wide choice of end connection: AVLOK™ Tube Fittings, Male & Female NPT or PT (ISO 7/1) thread, Socket Weld ANSI/ASME B16.11. Standard lubrication: Nickel anti-seize lubricant (Hydrocarbon carrier) Standard seat: Metal to metal/body material. Optional sea: Metal to metal/satellite, hard coating, soft seat.

Choice of Stem
Vee Stem is standard for pressure tightness even at elevated temperatures. Regulating Stem & Soft-seat Stem are optional.

Sour Gas Service
Materials for wetted valve component are selected in accordance with NACE standard MR 0175-2000 for sulfide stress cracking resistant.

Testing

Standard Factory Test: Every needle valve is 100% factory tested with air and nitrogen at 1000psi (69bar) for leakage a the seat and packing. Each test is performed to maximum allowable leak rate of 0.1sec/min. Optional Hydrostatic Test: This hydrostatic shell test is performed with pure water at 1-1/2 times of the working pressure. Other optional tests are available upon request.

Safe Valve Selection
When selecting the needle valves, the total system design must be considered to ensure safe, trouble-free performance. Valve function, materials compatibility, adequate ratings, proper installation, operation and maintenance are the responsibility of the system designer or user.

AVLOK™ 2 -Valve Manifolds offer safety and reliability in a general purpose design. The simple 2- Valve Configuration allows for easy block, bleed and calibration of a static pressure transmitter or gauge. Valves are available with either metal seats or replaceable soft seat inserts. Connections are 1/2 female NPT on all three ports.

Specifications

Connection: 1/2" Female NPT to 1/2" Female NPT One-piece, high strength body construction for safety no welding used. Stems feature an non-rotating top with an easily replaceable soft insert. Bonnet lock pin prevents accidental valve disassembly. 316 stainless steel constructions for superior corrosion resistance. Bonnet-to-body seals are metal-to-metal-no O-Rings used. Mounting holes provided for self supporting applications. 100% pressure tested for shut-off and at all seals. Manifolds feature at 4:1 safety factor.

The AVLOK™ Pipe to Pipe 3-Valve Manifold is a general purpose design for connection system impulse lines and transmitters. This manifold consists of two block Valves and an equalizer valve. Connection are 1/2" Female NPT on 2-1/8" (54mm) centers for safety, an bonnet lock pin is standard.

Specifications

Connection: 1/2" Female NPT to 1/2" Female NPT. One-piece, high strength body construction for safety no welding used. 316 stainless steel construction for superior corrosion resistance. Bonnet lock pin prevents accidental valve disassembly. 2-1/8" (54mm) Port centerline dimension for proper alignment. 100% pressure tested for shut-off and at all seals. Manifolds feature at 4:1 safety factor.

5-Valve Manifold offer two mainline block valves and a double block and bleed valve for the equalizer line. The manifold is primarily intended for gas service and is used to connect differential pressure transmitters to system flow meters. Connections are 1/2" Female NPT on 2-1/8" (54mm) centers Standard feature include two 1/4" NPT static pressure connections on the instrument side and one 1/4" NPT vent connection from the bleed valve.

Specifications

Connection: 1/2" Female NPT to 1/2" Female NPT. One-piece, high strength body construction for safety no welding used. Bonnet lock pin prevents accidental valve disassembly. 2-1/8" (54mm) Port centerline dimension for proper alignment. 100% pressure tested for shut-off and at all seals. 316 stainless steel construction for superior corrosion resistance. Bonnet-to-body seals are metal-to metal. No O-Rings are used. Manifolds feature a 4:1 safety factor.